IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0891019
(2001-06-25)
|
발명자
/ 주소 |
- Backus, Alan L.
- Popeil, Ron
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인용정보 |
피인용 횟수 :
12 인용 특허 :
190 |
초록
▼
Enclosed rotisserie with added convenience, including a countertop resting box enclosure housing a safety rear mounted heating element and a power rotated dual rod spit assembly. The gear driven spit assembly may be easily inserted and removed straight into and out of the enclosure without need for
Enclosed rotisserie with added convenience, including a countertop resting box enclosure housing a safety rear mounted heating element and a power rotated dual rod spit assembly. The gear driven spit assembly may be easily inserted and removed straight into and out of the enclosure without need for angling or coupling the assembly to a power drive socket. The spit assembly may also be mounted at various distances from the heating element to decrease cooking times. The open front of the enclosure is from time to time covered by an inclined glass panel door which may be opened in various ways to facilitate food insertion into and removal from the enclosure, and which may be easily removed for cleaning or other purposes. The embodiment's design makes efficient use of valuable counter space by recessing back and raising off the countertop its controls. A variety of foods may be cooked using the spit and accessories that attach to the spit. Such accessories include wire baskets and a rotating stir fryer. Foods may be cooked on top of the embodiment as well using an included warming tray and an inserted steaming tray with cover.
대표청구항
▼
Enclosed rotisserie with added convenience, including a countertop resting box enclosure housing a safety rear mounted heating element and a power rotated dual rod spit assembly. The gear driven spit assembly may be easily inserted and removed straight into and out of the enclosure without need for
Enclosed rotisserie with added convenience, including a countertop resting box enclosure housing a safety rear mounted heating element and a power rotated dual rod spit assembly. The gear driven spit assembly may be easily inserted and removed straight into and out of the enclosure without need for angling or coupling the assembly to a power drive socket. The spit assembly may also be mounted at various distances from the heating element to decrease cooking times. The open front of the enclosure is from time to time covered by an inclined glass panel door which may be opened in various ways to facilitate food insertion into and removal from the enclosure, and which may be easily removed for cleaning or other purposes. The embodiment's design makes efficient use of valuable counter space by recessing back and raising off the countertop its controls. A variety of foods may be cooked using the spit and accessories that attach to the spit. Such accessories include wire baskets and a rotating stir fryer. Foods may be cooked on top of the embodiment as well using an included warming tray and an inserted steaming tray with cover. n each of a number of knitting member accommodation grooves arranged side by side on an accommodation bed, so as to be freely advanced toward and retracted from a needle bed gap, and a second knitting member which is accommodated in an accommodation groove formed in the first knitting member to extend longitudinally of the first knitting member, so as to be movable relative to the first knitting member, wherein the first knitting member has a fork portion extending forwardly formed in an upper portion of at least one side wall of the first knitting member at an accommodation groove forming portion thereof where the accommodation groove for accommodating the second knitting member is formed, the second knitting member has a guiding portion formed to be curved outwardly so that an upper surface can confront a lower surface of the fork portion formed on the at least one side wall of the first knitting member, when the second knitting member is moved relative to the first knitting member, the guiding portion of the second knitting member is guided into a space formed under the fork portion of the first knitting member and supported by the fork portion during at least part of the relative movement. 2. The guide mechanism according to claim 1, wherein the lower surface of the fork portion is formed as a slanted cam surface declining rearwardly, so that when the second knitting member is retracted with respect to the first knitting member in the relative movement therebetween, the upper surface of the second knitting member is brought into abutment with the cam surface to lower the second knitting member. 3. A compound needle whose knitting members comprise a first knitting member and a second knitting member formed as a needle body having a hook at a front end and a slider having tongues at the slider front end, wherein an accommodation groove formed in the needle body has depth to accommodate the tongue therein when the slider is in a retracted position and raise and displace the tongue toward the hook when the slider is advanced, and wherein the accommodation groove has a guide surface formed on a lower surface of a fork portion provided in at least one side wall of the needle body, the slider is provided, on the slider upper surface, with a guiding portion which is formed to be curved outwardly so as to confront the guide surface of the fork portion, so that when the slider is retracted, the upper surface of the guiding portion of the slider is brought into engagement with the guide surface formed in the fork portion to guide the slider back to the retracted position. 4. The compound needle according to claim 3, wherein the slider comprises blades comprising two thin plates having tongues at their front ends, respectively, the blades are accommodated in the accommodation groove of the needle body, the fork portion is formed in each of the side walls of the needle body forming therein the accommodation groove, and the blades are formed to be curved toward the side walls of the needle body on the side on which the blades are slidably contactable with the side walls of the needle body, respectively, so that upper surfaces of the blades confront their respective lower surfaces of the fork portions. 5. The compound needle according to claim 4, wherein the blades are connected to the slider body supported on the needle body at top portions thereof. 6. The compound needle according to claim 5, wherein the blades are connected to the slider body in such a manner that front ends of the tongues are biased downwardly in the state in which the blades are accommodated in the accommodation groove of the needle body. 7. The guide mechanism according to claim 1, wherein the first knitting member includes a knitting needle. m are matched to the locking gear set and are always in constant and full contact with the locking gear set. This invention also uses a cam/cylinder locking device that controls the movement of the locking gear set. In the normal cam position the locking gear set will only turn in one direction, thus enabling the locking arm to close. In the second cam position the locking gear set will not turn in either direction. The cam can be rotated, through the use of a cylindrical key, in either directions. Rotation in one direction will select one of two locking positions. Rotation of the cylindrical key in the opposite direction will free locking gear set to rotate in the opposite direction thus disengaging the locking arm. aim 4, wherein said self test reflector is positioned a distance from the transducer that is no more than the wavelength of the transmitted ultrasonic wave. 17. The sensor of claim 2, wherein said reflector comprises a bar raised from the wall and the first distance spaces the reflector from the transducer a sufficient amount so that contaminants on a surface of the wall affect a reflected signal received by the transducer from the reflector. 18. The sensor of claim 1, wherein said transducer comprises a piezoelectric element. 19. A sensor for detecting contaminants on a wall having opposite surfaces, a first of the surfaces being exposed to ambient conditions and on which contaminants can collect, a second of said surfaces having a first ultrasonic reflector thereon, a transducer assembly mounted on the second surface at a location spaced from the first ultrasonic reflector a first distance, the transducer assembly being capable of transmitting ultrasonic energy through the wall toward the first ultrasonic reflector, and being capable of receiving reflected signals from the first ultrasonic reflector to provide an output indicating receiving the reflected signals, and a second self test reflector positioned on the wall adjacent the transducer assembly to provide a signal indicating reflected ultrasonic energy transmitted by the transducer assembly that is substantially unaffected by contaminants on the surface of the wall exposed to ambient conditions, wherein the second self test reflector comprises a waveguide having a width extending lateral to a direction line extending between the transducer assembly and the first ultrasonic reflector that is substantially less than the width of the first ultrasonic reflector. 20. The sensor of claim 19, wherein said transducer assembly forms a bond with the second surface of the wall, and the signal reflected from the second self test reflector changes when the condition of the bond between the transducer assembly and the second surface of the wall changes. 21. The sensor of claim 19, wherein the first ultrasonic reflector comprises a raised bar on the second surface of the wall. 22. A method of testing an ultrasonic contaminant sensor for operability, the contaminant sensor comprising a transducer coupled to a wall having a surface so as to transmit ultrasonic waves along the wall, wherein the ultrasonic waves propagate along and parallel to the surface of the wall, the method comprising providing a first ultrasonic wave reflector on the wall at a first distance from the transducer, providing a second test ultrasonic wave reflector on the wall a second distance from the transducer which is substantially shorter than the first distance, wherein the first distance and the second distance extend along the wall, transmitting an ultrasonic wave signal from the transducer and receiving ultrasonic wave signals at a time subsequent to transmitting to determine whether the ultrasonic waves are reflected from the second test reflector. 23. The method of claim 22 comprising placing the second test reflector at a distance from the transducer such that contaminants do not substantially affect the received ultrasonic wave signals reflected from the second test reflector. 24. The method of claim 23, including selecting the distance the second test reflector is placed from the transducer to be no more than one wave length of the transmitted ultrasonic signal. 25. The method of claim 23, comprising selecting the first distance so that reflections from the first reflector are attenuated when reflected signals from the first reflector are received by the transducer. 26. The method of claim 22, comprising transmitting ultrasonic energy for a first time period and at an end of the first time period receiving vibration signals from the wall for a second time period to determine if ultrasonic energy has been transmitted to the wall. 27. A method for testing an ultrasonic contaminant sensor for operability, t
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