公开(公告)号：US3023291A

公开(公告)日：1962-02-27

申请号：US83722759

申请日：1959-08-31

Applicant: WESTINGHOUSE ELECTRIC CORP

Inventor： SOLES OTTO H ,  KANE RICHARD E

IPC: H01H75/04

CPC classification number: H01H75/04

公开(公告)号：US3930134A

公开(公告)日：1975-12-30

申请号：US40152073

申请日：1973-09-27

Applicant: WESTINGHOUSE ELECTRIC CORP

Inventor： ROSTRON JOSEPH R ,  BRUNSON LAWRENCE A ,  SOLES OTTO H

IPC: H01H33/32 ,  H01H35/38

CPC classification number: H01H33/32 ,  Y10T137/86614

Abstract: An improved pneumatic power unit is provided including a penumatic piston reciprocally operable within an operating cylinder housing, which, in one conceivable application, operates the contact structure of a power circuit-breaker, and uses a normally-open three-way valve, which normally provides highpressure gas on both sides of the driving piston within the operating cylinder housing. During the closing operation of the circuit-breaker, when the pneumatic power unit of the instant invention is applied to this particular application, the threeway normally-open valve is operated to exhaust one side of the driving piston, and the high-pressure gas already present on the other side of the piston provides the required closing force to close the contacts of the circuit-breaker against the usuallyprovided accelerating spring pressure tending to open the breaker. The de-energization of the normally-open three-way valve returns the closing or driving piston to its normal reset position, in such a particular application, thus not requiring a return spring, since the cross-sectional area of the piston-shaft is acted upon by the internal high-pressure gas present on the return or non-working side of the piston assembly in the cylinder housing, and since normal atmospheric air pressure obviously exists on the outside or externally of the operating-cylinder housing thereby exerting relatively little inward force on the cross-sectional area of the piston rod.

Abstract translation: 提供了一种改进的气动动力单元，其包括在操作气缸壳体内可往复运动的减速活塞，其在可想到的应用中操作电力断路器的接触结构，并且使用常开三通阀，其通常 在操作缸体内的驱动活塞的两侧提供高压气体。 在断路器的闭合动作期间，当将本发明的气动动力单元应用于该特定应用时，三通常开阀被操作以排出驱动活塞的一侧，高压 已经存在于活塞另一侧的气体提供了所需的关闭力，以便相对于通常提供的加速弹簧压力来闭合断路器的触点，以期打开断路器。

公开(公告)号：US3204022A

公开(公告)日：1965-08-31

申请号：US18909062

申请日：1962-04-20

Applicant: WESTINGHOUSE ELECTRIC CORP

Inventor： SOLES OTTO H ,  LENTJES CARL G

IPC: H02G15/06

CPC classification number: H02G15/06

公开(公告)号：US2919316A

公开(公告)日：1959-12-29

申请号：US74011958

申请日：1958-06-05

Applicant: WESTINGHOUSE ELECTRIC CORP

Inventor： SCHRAMECK JACK E ,  SOLES OTTO H

IPC: H02B13/075

CPC classification number: H02B13/075