IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0548368
(2012-07-13)
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등록번호 |
US-9510710
(2016-12-06)
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발명자
/ 주소 |
- Kaminski, Andrzej
- Lassota, Zbigniew G.
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출원인 / 주소 |
- Food Equipment Technologies Company, Inc.
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
1 인용 특허 :
21 |
초록
▼
A food grinder (10) makes a sound or vibrates with a frequency that changes between a first mode when the grinding mechanism (22, 24, 36) is performing a grinding operation while there is bulk food ingredient within the grinding chamber, and a second mode when the grinding mechanism (22, 24, 36) is
A food grinder (10) makes a sound or vibrates with a frequency that changes between a first mode when the grinding mechanism (22, 24, 36) is performing a grinding operation while there is bulk food ingredient within the grinding chamber, and a second mode when the grinding mechanism (22, 24, 36) is performing a grinding operation while there is no bulk food ingredient within the grinding chamber, has a detector (44) for sensing the change in frequency and a controller (42) responsive to the detector (44) for controlling the application of electrical power to the grinding mechanism (22, 24 36). Power is first applied when a start grind switch is manually actuated and is later automatically removed in response to a timer (54) a preselected time period after the detector senses that the grinding chamber is empty of bulk food ingredient to be ground.
대표청구항
▼
1. A food grinder, comprising: a grinding mechanism having a grinding chamber with a plurality of electrically powered grinding members for grinding food ingredient received within the grinding chamber;an electrical grind motor located freely outside of the grinding chamber, said grind motor having
1. A food grinder, comprising: a grinding mechanism having a grinding chamber with a plurality of electrically powered grinding members for grinding food ingredient received within the grinding chamber;an electrical grind motor located freely outside of the grinding chamber, said grind motor having no housing shared with only the grinding chamber to drive the grinding members within the grinding chamber, said electrical grind motor creating outside of the grinding chamber a detectable condition detectable outside of the grinding chamber with a characteristic that changes between a first mode when the grinding mechanism is performing a grinding operation while there is bulk food ingredient within the grinding chamber that is being ground, anda second mode when the grinding mechanism is performing a grinding operation while there is no bulk food ingredient within the grinding chamber;a detector for sensing when the characteristic changes between the first mode and the second mode;means for selectively applying electrical power to the grinding mechanism; andmeans responsive to the detector sensing the characteristic changing for controlling the electrical power applying means including an electrical timer responsive to the detector sensing the characteristic changing from the first mode to the second mode to start a preselected time period during which power continues to be applied to the grinding mechanism; andmeans responsive to the timer for terminating electrical power to the grinding mechanism after the preselected time period has lapsed, said time period being sufficient to remove fines from the grinding chamber after the bulk food ingredient has been removed. 2. The food grinder of claim 1 in which the detectable condition is a sound having an acoustical characteristic that changes between the first mode when the grinding mechanism is performing a grinding operation while there is bulk food ingredient within the grinding chamber that is being ground, andthe second mode when the grinding mechanism is performing a grinding operation while there is no bulk food ingredient within the grinding chamber, andthe detector is an acoustical detector for sensing when the acoustical characteristic of the grind motor changes between the first mode and the second mode. 3. The food grinder of claim 2 in which the acoustical characteristic is the frequency of sound generated during operation of the grinding mechanism,said frequency changing between relatively low average frequencies when the acoustical characteristic is in the first mode and relatively high average frequencies higher than the relatively low frequencies when the acoustical characteristic is in the second mode. 4. The food grinder of claim 1 in which the controlling means includes a start grind switch, said electrical power applying means responding to manual actuation of the start grind switch to initiate application of power to the grinding mechanism to start the grinding operation, and in whichthe electrical power controlling means is responsive to the detector sensing the characteristic of the electrical grind motor changing from the first mode to the second mode for causing the electrical power applying means to commence a measured time period for continuation of the grinding mechanism to stop the grinding operation. 5. A food grinder, comprising: a grinding mechanism having a grinding chamber with a plurality of electrically powered grinding members for grinding food ingredient received within a grinding chamber;an electrical grind motor located freely outside of the grinding chamber, said grind motor having no housing shared with only the grinding chamber to drive the grinding members within the grinding chamber, said electrical grind motor creating outside of the grinding chamber a detectable condition detectable outside of the grinding chamber with a characteristic that changes between a first mode when the grinding mechanism is performing a grinding operation while there is bulk food ingredient within the grinding chamber that is being ground, anda second mode when the grinding mechanism is performing a grinding operation while there is no bulk food ingredient within the grinding chamber;a detector for sensing when the characteristic changes between the first mode and the second mode;means for selectively applying electrical power to the grinding mechanism; andmeans responsive to the detector sensing the characteristic changing for controlling the electrical power applying means including an electrical timer responsive to the detector sensing the characteristic changing from the first mode to the second mode to start a preselected time period during which power continues to be applied to the grinding mechanism; andmeans responsive to the timer for terminating electrical power to the grinding mechanism after the preselected time period has lapsed, said time period being sufficient to remove fines from the grinding chamber after the bulk food ingredient has been removed, and in whichthe electrical grind motor has a distinctive sounds generating means located outside of the grinding chamber for generating independently of the grinding chamber sounds corresponding to the detectable condition with a detectable acoustical characteristic also located outside of the grinding chamber that is actuated only when the grinding operation is being performed,said distinctive sounds generating means generating at least two distinctly different sounds depending upon whether there is, or is not, bulk food ingredient within the chamber being ground during the grinding operation, said two distinctive sounds being sounds other than sounds created within the grinding chamber or by the grind motor or any housing of either or both the grinding chamber and the grind motor. 6. The food grinder of claim 5 in which the detector is an acoustical detector that is located outside the grinding chamber and adjacent the distinctive sounds generating means also located outside of the grind chamber. 7. A food grinder, comprising: a grinding assembly for grinding a food ingredient having an electrically powered grinding mechanism for grinding food ingredient received within a grinding chamber, said grinding mechanism creating a detectable condition with a characteristic that changes between a first mode when the grinding mechanism is performing a grinding operation while there is bulk food ingredient within the grinding chamber that is being ground, anda second mode when the grinding mechanism is performing a grinding operation while there is no bulk food ingredient within the grinding chamber;a detector for sensing when the characteristic changes between the first mode and the second mode;means for selectively applying electrical power to the grinding mechanism; andmeans responsive to the detector sensing the characteristic changing for controlling the electrical power applying means including an electrical timer responsive to the detector sensing the characteristic changing from the first mode to the second mode to start a preselected time period during which power continues to be applied to the grinding mechanism;means responsive to the timer for terminating electrical power to the grinding mechanism after the preselected time period has lapsed, said time period being sufficient to remove fines from the grinding chamber after the bulk food ingredient has been removed; and in whichthe grinder includes a distinctive sounds generating means with a detectable acoustical characteristic located outside of the grinding chamber that is actuated only when the grinding operation is being performed;said distinctive sounds generating member generating at least two distinctly different sounds depending upon whether there is, or is not, bulk food ingredient within the chamber being ground during the grinding operation, the distinctive sound generating means including a thin walled rotatable fin that rotates when the grinding mechanism is performing a grinding operation. 8. A food grinder, comprising: a grinding assembly for grinding a food ingredient having an electrically powered grinding mechanism for grinding food ingredient received within a grinding chamber, said grinding mechanism creating a detectable condition with a characteristic that changes between a first mode when the grinding mechanism is performing a grinding operation while there is bulk food ingredient within the grinding chamber that is being ground, anda second mode when the grinding mechanism is performing a grinding operation while there is no bulk food ingredient within the grinding chamber;a detector for sensing when the characteristic changes between the first mode and the second mode;means for selectively applying electrical power to the grinding mechanism; andmeans responsive to the detector sensing the characteristic changing for controlling the electrical power applying means including an electrical timer responsive to the detector sensing the characteristic changing from the first mode to the second mode to start a preselected time period during which power continues to be applied to the grinding mechanism;means responsive to the timer for terminating electrical power to the grinding mechanism after the preselected time period has lapsed, said time period being sufficient to remove fines from the grinding chamber after the bulk food ingredient has been removed; and in whichthe grinder includes a distinctive sounds generating means with a detectable acoustical characteristic located outside of the grinding chamber that is actuated only when the grinding operation is being performed,said distinctive sounds generating means generating at least two distinctly different sounds depending upon whether there is, or is not, bulk food ingredient within the chamber being ground during the grinding operation; and in which the grinding mechanism includesgrinding burrs contained within the grinding chamber,an electrical motor located outside of the grinding chamber,a rotary motor axle interconnecting the electrical motor with the grinding burrs to rotate the grinding burrs during the grinding operation, andsaid sounds generating means includes a least one distinctive tone generating member linked to the rotary motor axle outside of the grinding chamber to rotate with the rotary axle, said tone generating member providing at least part of the acoustical characteristic, said distinctive sound generating means generating a relatively low frequency sound when in the first mode and the electrical motor is rotating relatively slowly, while the grinding operation is being performed and there is bulk ingredient within the grinding chamber that is being ground, anda relatively high frequency sound higher in frequency than the relatively low frequency sound when in the second mode and the electrical motor is rotating relatively faster, while the grinding operation is being performed but there is no longer bulk food ingredient within the grinding chamber. 9. The food grinder of claim 8 in which the distinctive tone generating member includes a thin walled fin attached to the motor axle. 10. A method of grinding food in a food grinder, comprising: grinding a food ingredient with a grinding assembly having an electrically powered grinding mechanism within a grinding chamber that is driven by an electrical grind motor located outside of the grinding chamber and having no housing shared with the grinding chamber for grinding food ingredient received within the grinding chamber, said electrical grind motor creating outside of the grinding chamber a detectable condition with a characteristic that changes between a first mode when the electrical grind motor is driving the grinding mechanism when performing a grinding operation while there is bulk food ingredient within the grinding chamber that is being ground, anda second mode when the electrical grind motor is driving the grinding mechanism when performing a grinding operation while there is no bulk food ingredient within the grinding chamber;sensing with a detector when the characteristic changes between the first mode and the second mode;selectively applying electrical power to the grinding mechanism;responding to the detector for controlling the electrical power applying means including the step of responding with an electrical timer to the detector sensing the characteristic changing from the first mode to the second mode to measure a preselected time period; andremoving electrical power from the grinding mechanism at the end of said preselected time period, said preselected time period being sufficient to remove fines from the grinding chamber after the chamber has been substantially emptied. 11. The food grinding method of claim 10 in which the detectable condition is a sound generated by a source located outside of the grinding chamber and having an acoustical characteristic that changes between a first mode when the grinding mechanism is performing a grinding operation while there is bulk food ingredient within the grinding chamber that is being ground, anda second mode when the grinding mechanism is performing a grinding operation while there is no bulk food ingredient within the grinding chamber, andthe detector is an acoustical detector for sensing when the acoustical characteristic changes between the first mode and the second mode. 12. The food grinding method of claim 11 in which the acoustical characteristic is the frequency of sound generated during operation of the grinding mechanism,said frequency changing between relatively low average frequencies when the acoustical characteristic is in the first mode and relatively high average frequencies higher than the relatively low frequencies when the acoustical characteristic is in the second mode. 13. The food grinding method of claim 10 in which the step of controlling includes responding to actuation of a start grind switch to initiate application of power to the grinding mechanism to start the grinding operation, and in whichresponding to the detector sensing the characteristic changing from the first mode to the second mode for causing the electrical power applying means to terminate electrical power to the grinding mechanism to stop the grinding operation. 14. The food grinding method of claim 10 in which the detectable condition is the operating condition of the electric grind motor. 15. A method of grinding food in a food grinder, comprising: grinding a food ingredient with a grinding assembly having an electrically powered grinding mechanism within a grinding chamber that is driven by an electrical grind motor located outside of the grinding chamber for grinding food ingredient received within the grinding chamber, said electrical grind motor creating outside of the grinding chamber a detectable condition with a characteristic that changes between a first mode when the electrical grind motor is driving the grinding mechanism when performing a grinding operation while there is bulk food ingredient within the grinding chamber that is being ground, anda second mode when the electrical grind motor is driving the grinding mechanism when performing a grinding operation while there is no bulk food ingredient within the grinding chamber;sensing with a detector when the characteristic changes between the first mode and the second mode;selectively applying electrical power to the grinding mechanism;responding to the detector for controlling the electrical power applying means including the step of responding with an electrical timer to the detector sensing the characteristic changing from the first mode to the second mode to measure a preselected time period; andremoving electrical power from the grinding mechanism at the end of said preselected time period, said preselected time period being sufficient to remove fines from the grinding chamber after the chamber has been substantially emptied, and in whichthe grinder includes a distinctive sounds generating member located outside of and apart from the grinding chamber to create distinctive sounds that originate outside of the grinding chamber with a detectable acoustical characteristic located outside of the grinding chamber that is actuated only when the grinding operation is being performed, and including the step ofgenerating with said distinctive sounds generating member at least two distinctly different sounds depending upon whether there is, or is not, bulk food ingredient within the chamber being ground during the grinding operation. 16. The food grinding method of claim 15 in which the detector is an acoustical detector, andthe step of detecting includes the step of detecting sound characteristics of sound associated with the distinctive sound generating means at a location outside of the grinding chamber and adjacent the distinctive sounds generating means. 17. A method of grinding food in a food grinder, comprising: grinding a food ingredient with a grinding assembly having an electrically powered grinding mechanism for grinding food ingredient received within a grinding chamber, said grinding mechanism creating a detectable condition with a characteristic that changes between a first mode when the grinding mechanism is performing a grinding operation while there is bulk food ingredient within the grinding chamber that is being ground, anda second mode when the grinding mechanism is performing a grinding operation while there is no bulk food ingredient within the grinding chamber;sensing with a detector when the characteristic changes between the first mode and the second mode;selectively applying electrical power to the grinding mechanism;responding to the detector for controlling the electrical power applying means including the step of responding with an electrical timer to the detector sensing the characteristic changing from the first mode to the second mode to measure a preselected time period; andremoving electrical power from the grinding mechanism at the end of said preselected time period, said preselected time period being sufficient to remove fines from the grinding chamber after the chamber has been substantially emptied; and in which the grinder includes a distinctive sounds generating means with a detectable acoustical characteristic located outside of the grinding chamber that is actuated only when the grinding operation is being performed, and including the step ofsaid distinctive sounds generating means generating at least two distinctly different sounds depending upon whether there is, or is not, bulk food ingredient within the chamber being ground during the grinding operation,the distinctive sound generating means including a thin walled rotatable fin that rotates when the grinding mechanism is performing a grinding operation. 18. A method of grinding food in a food grinder, comprising: grinding a food ingredient with a grinding assembly having an electrically powered grinding mechanism for grinding food ingredient received within a grinding chamber, said grinding mechanism creating a detectable condition with a characteristic that changes between a first mode when the grinding mechanism is performing a grinding operation while there is bulk food ingredient within the grinding chamber that is being ground, anda second mode when the grinding mechanism is performing a grinding operation while there is no bulk food ingredient within the grinding chamber;sensing with a detector when the characteristic changes between the first mode and the second mode;selectively applying electrical power to the grinding mechanism;responding to the detector for controlling the electrical power applying means including the step of responding with an electrical timer to the detector sensing the characteristic changing from the first mode to the second mode to measure a preselected time period; andremoving electrical power from the grinding mechanism at the end of said preselected time period, said preselected time period being sufficient to remove fines from the grinding chamber after the chamber has been substantially emptied. and in which the grinder includes a distinctive sounds generating means with a detectable acoustical characteristic located outside of the grinding chamber that is actuated only when the grinding operation is being performed, and including the step ofsaid distinctive sounds generating means generating at least two distinctly different sounds depending upon whether there is, or is not, bulk food ingredient within the chamber being ground during the grinding operation, and in which the grinding mechanism includesgrinding burrs contained within the grinding chamber,an electrical motor located outside of the grinding chamber,a rotary motor axle interconnecting the electrical motor with the grinding burrs to rotate the grinding burrs during the grinding operation, and including the steps ofgenerating at least one distinctive tone with a sound generating member linked to the rotary motor axle outside of the grinding chamber,rotating the distinctive sound generating member at a speed proportional to speed of the rotary axle to provide at least part of the acoustical characteristic to produce a relatively low frequency sound when in the first mode and the electrical motor is rotating relatively slowly, while the grinding operation is being performed and there is bulk ingredient within the grinding chamber that is being ground, anda relatively high frequency sound higher in frequency than the relatively low frequency sound when in the second mode and the electrical motor is rotating relatively faster, while the grinding operation is being performed while but there is no longer bulk food ingredient within the grinding chamber. 19. The food grinding method of claim 18 in which the distinctive sounds generating member includes a thin walled fin attached to the motor axle. 20. A method of grinding food in a food grinder, comprising: grinding a food ingredient with a grinding assembly having an electrically powered grinding mechanism for grinding food ingredient received within a grinding chamber, said grinding mechanism creating a detectable condition with a characteristic that changes between a first mode when the grinding mechanism is performing a grinding operation while there is bulk food ingredient within the grinding chamber that is being ground, anda second mode when the grinding mechanism is performing a grinding operation while there is no bulk food ingredient within the grinding chamber;sensing with a detector when the characteristic changes between the first mode and the second mode;selectively applying electrical power to the grinding mechanism;responding to the detector for controlling the electrical power applying means including the step of responding with an electrical timer to the detector sensing the characteristic changing from the first mode to the second mode to measure a preselected time period; andremoving electrical power from the grinding mechanism at the end of said preselected time period, said preselected time period being sufficient to remove fines from the grinding chamber after the chamber has been substantially emptied; and in which the grinder includes a distinctive sounds generating means with a detectable acoustical characteristic located outside of the grinding chamber that is actuated only when the grinding operation is being performed, and including the step ofsaid distinctive sounds generating member generating at least two distinctly different sounds depending upon whether there is, or is not, bulk food ingredient within the chamber being ground during the grinding operation; and in which the grinding mechanism includesgrinding burrs contained within the grinding chamber,an electrical motor located outside of the grinding chamber,a rotary motor axle interconnecting the electrical motor with the grinding burrs to rotate the grinding burrs during the grinding operation, and including the steps ofgenerating at least one distinctive tone with a sound generating member linked to the rotary motor axle outside of the grinding chamber,rotating the sound generating member at a speed proportional to speed of the rotary axle to provide at least part of the acoustic characteristic to produce a relatively low frequency sound when in the first mode and the electrical motor is rotating relatively slowly, while the grinding operation is being performed and there is bulk ingredient within the grinding chamber that is being ground, anda relatively high frequency sound higher in frequency than the relatively low frequency sound when in the second mode and the electrical motor is rotating relatively faster, while the grinding operation is being performed while but there is no longer bulk food ingredient within the grinding chamber; and in whichthe sound making member includes a thin walled fin attached to the motor axle. in which the mechanical vibrational characteristic is the frequency of vibration during operation of the grinding mechanism, said vibration frequency changing between a relatively low frequency when the mechanical vibrational characteristic is in the first mode and a relatively high frequency when the mechanical vibrational characteristic is in the second mode. 21. The food grinding method of claim 20 in which the step of terminating electrical power includes the step of actuating a an electrical timer in response the mechanical vibrational characteristic changing from the first mode to the second mode to measure a preselected time period,terminating electrical power to the grinding mechanism when the preselected time period has lapsed. 22. A food grinder, comprising: a grinding assembly for grinding a food ingredient having a grinding including grinding burrs located within a grinding chamber driven by an electrical grind motor located outside of the grinding chamber;a distinctive sound generating member rotatably linked to the electrical grind motorsaid distinctive sound generating member creating a detectable sound originating outside of the grinding chamber with an acoustical characteristic that changes between a first mode when the grinding mechanism is performing a grinding operation while there is bulk food ingredient within the grinding chamber that is being ground, anda second mode when the grinding mechanism is performing a grinding operation while there is no bulk food ingredient within the grinding chamber;a detector for sensing when the characteristic changes between the first mode and the second mode;means responsive to the detector for removing electrical power from the electrical grind motor in response to the acoustical characteristic changing from the first mode to the second mode. 23. The food grinder of claim 22 including an electrical timer responsive to the detector sensing the characteristic changing from the first mode to the second mode to start a preselected time period during which power continues to be applied to the grinding mechanism; andmeans responsive to the timer for causing the electrical power terminating means to remove electrical power to the grinding mechanism only after the preselected time period has lapsed, said time period being sufficient to remove fines from the grinding chamber after the bulk food ingredient has been removed. 24. The food grinder of claim 22 in which distinctive sounds generating member includes a thin walled fin attached to a rotary axle of the electrical grind motor located outside of the grinding chamber. 25. A method of grinding food in a food grinder, comprising the steps of: grinding a food ingredient with grinding burrs located within a grinding chamber driven by an electrical grind motor located outside of the grinding chamber;generating distinctive sounds with a sounds generating member located outside of the grinding chamber and rotatably linked to the electrical grind motor, said distinctive sound generating member creating a detectable sound originating outside of the grinding chamber with an acoustical characteristic that changes between a first mode when the grinding mechanism is performing a grinding operation while there is bulk food ingredient within the grinding chamber that is being ground, anda second mode when the grinding mechanism is performing a grinding operation while there is no bulk food ingredient within the grinding chamber;sensing with an acoustical detector when the characteristic changes between the first mode and the second mode; andautomatically removing electrical power from the electrical grind motor in response to the acoustical characteristic changing from the first mode to the second mode. 26. The food grinding method of claim 25 including starting an electrical timer in response to the detector sensing the characteristic changing from the first mode to the second mode to start a preselected time period during which power continues to be applied to the grinding mechanism; andcausing the electrical power terminating means to remove electrical power to the grinding mechanism only after the preselected time period has lapsed, said time period being sufficient to remove fines from the grinding chamber after the bulk food ingredient has been removed. 27. The food grinding method of claim 25 in which the sounds generating member includes a thin walled fin attached to a rotatable axle of the grind drive motor at a location outside of the grinding chamber.
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