IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
|
출원번호 |
US-0930093
(2001-08-14)
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발명자
/ 주소 |
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출원인 / 주소 |
- Lakewood Engineering and Manufacturing Co.
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대리인 / 주소 |
Wallenstein & Wagner, Ltd.
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인용정보 |
피인용 횟수 :
9 인용 특허 :
75 |
초록
▼
A fan assembly is disclosed. The fan assembly has a frame and a motorized blade assembly. The motorized blade assembly has an electric motor and an integrally attached bladed propeller with a central hub. The motor includes a rotor and a stator, the rotor having a rotatable output shaft extending fr
A fan assembly is disclosed. The fan assembly has a frame and a motorized blade assembly. The motorized blade assembly has an electric motor and an integrally attached bladed propeller with a central hub. The motor includes a rotor and a stator, the rotor having a rotatable output shaft extending from a front side of the motor with a bladed propeller secured to the output shaft. The motor includes a housing with a mounting area for securing an electrical control switch. The mounting area is provided by a flange portion of the rear motor wall and positioned radially outwardly relative to the output shaft, and provides mounting of the control switch with a user interface that is exposed from the fan frame. The fan assembly motor also may provide an electrical connection port for removable attachment of an electrical power cord, wherein the connection port is integral with the motor housing and is exposed from the fan frame for attachment of the cord by a user.
대표청구항
▼
A fan assembly is disclosed. The fan assembly has a frame and a motorized blade assembly. The motorized blade assembly has an electric motor and an integrally attached bladed propeller with a central hub. The motor includes a rotor and a stator, the rotor having a rotatable output shaft extending fr
A fan assembly is disclosed. The fan assembly has a frame and a motorized blade assembly. The motorized blade assembly has an electric motor and an integrally attached bladed propeller with a central hub. The motor includes a rotor and a stator, the rotor having a rotatable output shaft extending from a front side of the motor with a bladed propeller secured to the output shaft. The motor includes a housing with a mounting area for securing an electrical control switch. The mounting area is provided by a flange portion of the rear motor wall and positioned radially outwardly relative to the output shaft, and provides mounting of the control switch with a user interface that is exposed from the fan frame. The fan assembly motor also may provide an electrical connection port for removable attachment of an electrical power cord, wherein the connection port is integral with the motor housing and is exposed from the fan frame for attachment of the cord by a user. jaws are spaced apart from each other farther than the desired separation distance, and wherein when the alignment jaws are in the engaged position and the key is disposed therebetween, the longitudinal reference axis of the key is positioned substantially in parallel to the alignment axis of the frame; a clamp having a first gripping jaw and a second gripping jaw, one of the first and second gripping jaws configured to move towards the other of the first and second gripping jaws along a second axis of movement that is substantially perpendicular to the first axis of movement and configured to engage the key after the alignment jaws have moved to the engaged position and to securely hold the key such that the opposed sides of the key are exposed for cutting when the alignment jaws return to the disengaged position; a motor disposed on the frame and coupled to at least one of the alignment jaws; a controller operable to energize the motor for a predetermined output based upon the width of the key blade, whereby the desired separation distance between the alignment jaws is obtained; a rack fixedly attached to a portion of the at least one alignment jaw, the rack having a longitudinal axis, a lower side defining a plurality of gear teeth therein, and an opposite upper side; and a detector operable to sense when the at least one alignment jaw is at a home position, from which position the controller calculates the position of the at least one alignment jaw by energizing the motor for a desired time, wherein the detector comprises: a switch disposed on the frame adjacent the rack and having a magnetic sensor that generates an electrical signal; a magnet fixedly attached to a portion of the rack so that the magnet moves as the rack moves such that when at least a portion of the magnet moves in front of the magnetic sensor of the switch, the magnetic sensor generates the electrical signal; and means for communicating the electrical signal from the magnetic sensor of the switch to the controller, thereby signaling the controller that the at least one alignment jaw is disposed at the home position. 2. The device of claim 1, further comprising: a support membet slidably engagable with the upper side of the rack; and a pinion mounted on the frame and having a periphery that defines a plurality of gear teeth therealong, wherein the gear teeth of the pinion matingly engage with the gear teeth of the rack, whereby when the controller energizes the motor, the motor rotates the pinion so that the rack is moved in a selected direction along the longitudinal axis of the rack as the gear teeth of the pinion intermesh with the gear teeth of the rack. 3. The device of claim 2, further comprising a preventing means for preventing lateral movement of the at least one alignment jaw when the motor is de-energized. 4. The device of claim 3, wherein the preventing means comprises: a worm rotatable mounted on the frame and having an outer surface defining a circumscribing groove therein and a lower end coupled to a portion of the motor so that the motor is operable to rotate the worm; a gear rotatable mounted on the frame and having an edge defining a plurality of gear teeth therein, each of the gear teeth of a size to be complementarily received in the groove of the worm so that rotation of the worm causes a rotation of the gear as the gear teeth of the gear interface with the groove of the worm; and means for movably coupling the gear to the pinion so that rotation of the gear causes a corresponding rotation of the pinion. 5. The device of claim 4, wherein the controller comprises a computer subsystem that directs predetermined amount of electrical energy to the motor for a desired time so that the motor rotates the worm a desired number of rotations in a selected direction. 6. The device of claim 3, wherein the motor comprises an electric linear actuator having a rotational output when energized and wherein the preventing mea ns comprises: a rod having a longitudinal axis, a first end and a second end, in which the first end is fixedly attached to the at least one alignment jaw, and wherein a portion of the rod intermediate the first and second ends is threaded; and means for movably coupling the threaded portion of the rod to the motor so that when the motor is energized, the rod rotates and moves longitudinally. 7. The device of claim 6, wherein the controller comprises a computer subsystem that directs a predetermined amount of electrical energy to the linear actuator motor for a desired time so that the linear actuator motor rotates the rod a desired number of rotations in a selected direction. 8. A device for aligning a key in a key cutting system, the key having a longitudinal reference axis, a blade with opposed sides defining a blade width and a tip at one end of the blade, the device comprising: a frame having an alignment axis; two opposed alignment jaws, each alignment jaw independently and laterally movable in the frame along a first axis of movement relative to the alignment axis of the frame, the alignment jaws moveable between an engaged position, in which the alignment jaws are spaced apart from each other a desired separation distance so that each alignment jaw contacts at least a selected portion of a respective side of the key when the key is disposed therebetween, and a disengaged position, in which the alignment jaws are spaced apart from each other farther than the desired separation distance, and wherein when the alignment jaws are in the engaged position and the key is disposed therebetween, the longitudinal reference axis of the key is positioned substantially in parallel to the alignment axis of the frame; a clamp having a first gripping jaw and a second gripping jaw, one of the first and second gripping jaws configured to move towards the other of the first and second gripping jaws along a second axis of movement that is substantially perpendicular to the first axis of movement and configured to engage the key after the alignment jaws have moved to the engaged position and to securely hold the key such that the opposed sides of the key are exposed for cutting when the alignment jaws return to the disengaged position; a motor disposed on the frame and coupled to at least one of the alignment jaws via a pinion; a controller operable to energize the motor for a predetermined output based upon the blade width of the key, whereby the desired separation distance between the alignment jaws is obtained; a worm rotatably mounted on the frame and having an outer surface defining a circumscribing groove therein and a lower end coupled to a portion of the motor so that the motor is operable to rotate the worm; a gear rotatably mounted on the frame and having an edge defining a plurality of gear teeth therein, each of the gear teeth of a size to be complementarily received in the groove of the worm so that rotation of the worm causes a rotation of the gear as the gear teeth of the gear interface with the groove of the worm; and means for movably coupling the gear to the pinion so that rotation of the gear causes a corresponding rotation of the pinion. 9. The device of claim 8, further comprising a detector operable to sense when the at least one alignment jaw is at a home position, from which position the controller calculates the position of the at least one alignment jaw by energizing the motor for a desired time. 10. The device of claim 9, wherein the at least one alignment jaw includes a rack and wherein the detector comprises: a photo switch disposed on the frame adjacent the rack and having an optical sensor that generates an electrical signal; a photo-switch plate fixedly attached to a portion of the rack so that the photo-switch plate moves as the rack moves such that when at least a portion of the photo-switch plate moves in front of the optical sensor of the photo switch, the optical sensor generates th
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