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특허 상세정보

Rotary valve actuator with zero lost motion universal connection

특허상세정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) F16K-031/126    F16K-031/52   
미국특허분류(USC) 137/315 ; 251/058 ; 251/292
출원번호 US-0845617 (1997-04-25)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Marshall, O'Toole, Gerstein, Murray & Borun
인용정보 피인용 횟수 : 5  인용 특허 : 65
초록

A rotary valve actuator with movable actuator linkage maintained in a constant "pull-pull" tension, includes a sliding canister, rotatable lever, and a return spring substantially aligned in-line with each other. The linear motion of the canister in response to an expanding and contracting pressurized bladder is converted through chain linkage into rotary lever motion. The return spring is connected through respective chain linkage to the lever so the pulling tension of the spring/lever linkage rotates the lever and maintains tension on both chain linkag...

대표
청구항

[ What is claimed is:] [1.] In a rotary valve actuator for a fluid control valve having a valve operating shaft with a splined end, the rotary valve actuator having a rotatable lever, an improved rotary actuator driving connection between said rotatable lever and said valve shaft splined end comprising:a hollow bore in said rotatable lever;a sleeve having an exterior surface substantially matching said hollow bore for insertion into said bore and a hollow interior surface adapted to receive said valve shaft splined end; anda set screw threadably engaging...

이 특허에 인용된 특허 (65)

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