[특허]Digital linear actuator

Digital linear actuator 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F03G-007/00
출원번호	US-0717570 (1985-03-29)
발명자 / 주소	Birchard William G. (9710 Golf Links Rd. Tucson AZ 85730)
인용정보	피인용 횟수 : 29 인용 특허 : 0

초록 ▼

A digital linear actuator includes a plurality of digital actuator cells each connected to the next in sequential fashion. Each of the digital actuator cells contracts or expands a predetermined amount along an expansion/contraction axis when it is actuated by a corresponding digital signal. Each digital actuator cell includes an inner portion containing a medium which expands or contracts in response to a digital signal. The inner portion is disposed within an outer portion that contracts in the direction of the axis in response to expansion of the inner portion, and expands in the direction of the axis in response to contraction of the inner portion. The device is useful in simulating the behavior of a muscle in a prosthetic device. Several embodiments of the invention are disclosed in which an arm can be extended to and retracted from a snake-like configuration. Another embodiment of the invention is disclosed which effectively simulates a shoulder and arm mechanism.

대표청구항 ▼

A digital actuator comprising: (a) a plurality of digital actuator cells, each digital actuator cell having an axis of expansion and first and second end surfaces, each digital actuator cell including: i. outer means for expanding or contracting along the axis of that digital actuator cell, and having first and second end surfaces on opposed ends of the outer means, ii. inner means disposed within the outer means for expanding or contracting along the axis, and having first and second end surfaces, on opposed ends of the inner means, iii. means responsive to a digital control signal for causing a medium in the inner means to cause the inner means to expand a predetermined amount in the direction of the axis of that digital actuator cell in response to a first binary level of the digital control signal and for allowing a contraction of the inner means to its initial dimension in response to a second binary level of the digital control signal, and iv. first connecting means for connecting the first end surface of the inner means in fixed relationship to the end surface of the outer means that is located on the opposite side of the inner means, and second connecting means for connecting the second end surface of the inner means in fixed relationship to the other end surface of the outer means, wherein expansion of the medium in the inner means causes a predetermined amount of expansion of the inner means along the axis of that digital actuator cell and a predetermined amount of contraction of the outer means along the axis; and (b) a plurality of third connecting means, each for connecting the first end surface of one digital actuator cell to the second end surface of an adjacent actuator cell, the plurality of digital actuator cells being connected in series by respective ones of the third connecting means to form the digital linear actuator.

이 특허를 인용한 특허 (29)

Walls-Bruck, Marcus Peter Johannes; Bond, Ian Paul, Actuating apparatus.
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Butera, Francesco; Biasiotto, Marco; Alacqua, Stefano, Actuator device with a flexible cable incorporating a shape-memory element.
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Szilagyi,Andrei, Actuator for two angular degrees of freedom.
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Jeon,Woo gon, Apparatus for driving raising and lowering of lift for tower type storehouse.
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Rey, Frédéric; Alouani, Slim, Articulated arm.
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Cibert, Christian, Bending and twisting mechanism and its applications to robotics and energy conversion.
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Anderson, S. Christopher; Cooper, Thomas G., Cable re-ordering device.
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Ubhayakar Shivadev K. (Rancho Palos Verdes CA), Flexidigit robotic manipulator.
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MacGregor,Roderick; Szilagyi,Andrei; Von Behrens,Peter Emery, Flow control assemblies having integrally formed shape memory alloy actuators.
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MacGregor,Roderick; Szilagyi,Andrei; Von Behrens,Peter Emery, Flow control assemblies having integrally formed shape memory alloy actuators.
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MacGregor,Roderick; Szilagyi,Andrei, Gauge pointer with integrated shape memory alloy actuator.
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Von Behrens,Peter Emery; Fairbanks,Dylan Miller, High stroke, highly integrated SMA actuators.
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Buckingham, Robert Oliver; Graham, Andrew Crispin, Link assembly for a snake like robot arm.
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Buckingham, Robert Oliver; Graham, Andrew Crispin, Link assembly with defined boundaries for a snake like robot arm.
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Pitt,Dale M, Methods and apparatus for vibration and buffet suppression.
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Pitt,Dale M., Methods and apparatus for vibration and buffet suppression.
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Von Behrens, Peter E.; Fairbanks, Dylan M., Methods of manufacturing highly integrated SMA actuators.
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Stern, Thomas, Mobile fibers and elongated structures and units thereof.
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Tobey, Wayland E., Modular hybrid snake arm.
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Isobe, Hiroshi; Ozaki, Takayoshi; Nagano, Yoshitaka; Nishio, Yukihiro, Remote-controlled actuator.
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Isobe, Hiroshi; Ozaki, Takayoshi; Nagano, Yoshitaka; Nishio, Yukihiro, Remote-controlled actuator.
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Nishio, Yukihiro; Isobe, Hiroshi; Nagano, Yoshitaka, Remote-controlled actuator.
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von Behrens, Peter Emery; Fairbanks, Dylan Miller; Broughton, Kathryn Ann, Reusable shape memory alloy activated latch.
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von Behrens,Peter E.; Fairbanks,Dylan M., SMA actuator with improved temperature control.
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MacGregor, Roderick, Shape memory alloy actuators and control methods.
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Mankame, Nilesh D.; Shaw, John Andrew; Reedlunn, Benjamin; Browne, Alan L.; Gao, Xiujie; Alexander, Paul W.; Aase, Jan H.; Johnson, Nancy L.; Strom, Kenneth A.; Naik, Sanjeev M.; Namuduri, Chandra S.; Stevenson, Robin; Rodgers, William R.; Ulicny, John C.; Henry, Christopher P.; Krajewski, Paul E.; Brammajyosula, Ravindra, Shape memory alloy cables.
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Buckingham, Robert Oliver; Graham, Andrew Crispin, System and method for controlling a robotic arm.
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Ghorbal, Ali; Surendran, Sandheep K.; Szilagyi, Andrei; von Behrens, Peter Emery; Maeder, Jean-Pierre, System, method and apparatus for reducing frictional forces and for compensating shape memory alloy-actuated valves and valve systems at high temperatures.
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Kim, Tae-gyun; Hong, Young-ki, Thermal actuation pump.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

내보내기 구분	파일저장 인쇄 메일전송
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저장형식	Text(ASCII format) Excel format PIAS분석(.xls)
메일정보	받는사람 (필수) @ 보내는사람 (선택) @ 제목 내용 KISTI 검색결과 이메일 서비스
안내	총 건의 자료가 검색되었습니다. 다운받으실 자료의 인덱스를 입력하세요. (1-10,000) 검색결과의 순서대로 최대 10,000건 까지 다운로드가 가능합니다. 데이타가 많을 경우 속도가 느려질 수 있습니다.(최대 2~3분 소요) 다운로드 파일은 UTF-8 형태로 저장됩니다. 파일의 내용이 제대로 보이지 않을실 때는 웹브라우저 상단의 보기 -> 인코딩 -> 자동선택 여부를 확인하십시오. ~ Text(ASCII format) Excel format

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Digital linear actuator 원문보기

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Digital linear actuator 원문보기

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이 특허를 인용한 특허 (29)

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