[특허]Material transfer mechanism

Material transfer mechanism 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	E01C-019/00
출원번호	US-0586576 (1975-06-13)
발명자 / 주소	Swisher Jr. George W. (Oklahoma City OK) Smith Don W. (Edmond OK) Westphall Gary L. (Oklahoma City OK)
출원인 / 주소	CMI Corporation (Oklahoma City OK 02)
인용정보	피인용 횟수 : 65 인용 특허 : 0

초록 ▼

An improved material transfer mechanism comprising a selectively variable speed hydraulic power assembly having an output connected to and powering a material conveyor. A double acting hydraulic ram positions a swash plate control lever that determines the rotational speed of the output shaft, and a hydraulic porting valve assembly is disposed to actuate the hydraulic ram, the hydraulic porting valve assembly comprising a pivotally supported valve body having an internally disposed fluid control means, the fluid control means being variably displaced in the valve body by the actuation of a pressure controlling mechanism for the purpose of selectively determining and establishing fluid communication of a source of hydraulic pressure fluid to alternate ends of the hydraulic ram with the hydraulic porting valve assembly to selectively control the hydraulic ram. The valve body is biased in a first pivotal direction and is movable in a second pivotal direction by a feed back linkage cable interconnecting the valve body and the swash plate control lever. A sensor mechanism detects the material transferred by the material conveyor and responsively positions the pressure controlling mechanism independently to the position of the valve body.

대표청구항 ▼

An improved surface finishing machine for the continuous paving of a paved lane on a roadway with paving material, comprising: a frame assembly; drive means supporting the frame assembly for moving the frame assembly along the roadway in a driven direction; hopper means supported on said frame assembly for receiving the paving material; first transfer means between hopper means and first spreader means for transferring the paving material from the hopper means to the first spreader means; first spreader means supported on the frame assembly for distributing the paving material transversely to the direction of travel of the surface finishing machine; screed means pivotally attached to the frame assembly for compressing the paving means spread by the spreader means; and a first feeder control assembly comprising: a first hydraulic porting valve pivotably mounted on the frame assembly for pivotation in a first pivotal direction and in a second pivotal direction, the first hydraulic porting valve Having a valve body and a controlling mechanism connected to the valve body and variably positionable relative thereto, the first hydraulic porting valve having a first output pressure mode, and alternately, a second output pressure mode, responsively determined by the position of the controlling mechanism; first biasing means biasing the first hydraulic porting valve to pivot in the first pivotal direction; first sensor means contactingly engaging the paving material for detecting the paving material distributed by the first spreader means near one side of the paved lane and responsively moving the controlling mechanism of the first hydraulic porting valve to effectuate the first output pressure mode, and alternately, responsively moving the controlling mechanism of the first hydraulic porting valve to effectuate the second output pressure mode; a first hydraulic power assembly having a swash plate control and a first hydraulic motor, the output speed of the first hydraulic motor being variable and responsive to the positional setting of the swash plate control; a first hydraulic ram having an extendible connecting rod, the connecting rod attached to the swash plate control of the first hydraulic power assembly to selectively move the swash plate control upon extension or contraction of the connecting rod; means connecting the first hydraulic ram and the first hydraulic porting valve for extending the connecting rod when the first hydraulic porting valve is in the first output pressure mode, and for contracting the connecting rod when the first hydraulic porting valve is in the second output pressure mode; and a first feedback linkage means connecting the first hydraulic porting valve and the swash plate control lever for moving the first hydraulic porting valve in response to movement of the swash plate control lever of the first hydraulic motor.

이 특허를 인용한 특허 (65)

Francis V. Smith, Apparatus and method for spreading material.
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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)
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연합인증

Material transfer mechanism 원문보기

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이 특허를 인용한 특허 (65)

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