Research/Patents/US 4532853
US 4532853

FLUID-POWERED ACTUATORS

Assignee

SECRETARY OF STATE FOR DEFENCE IN HER BRITANNIC MAJESTY'S GOVERNMENT OF THE UNITED KINGDOM OF GREAT BRITAIN AND NORTHERN IRELAND, WHITEHALL, LONDON, WHITEHALL,

Filed

Oct 8, 1980

Granted

Aug 6, 1985

Location

CASTLETON GB

Abstract

An actuator output member (11) is angularly deflectable by two opposed, tangentially movable, pressure transmitting members (7, 8), each responsive to the pressure drop developed across two respective flow restrictors (1, 2) serially connected in a fluid circuit. Deflection is achieved by variation of one or both of the flow restrictors. In a fast response arrangement the fluid is electroviscous and the flow restrictors electrically variable.

Source: Google Patents

35 USC §181 Secrecy Order

Imposed

Mar 23, 1982

Rescinded

Sep 21, 1984

Duration

2 years, 6 months

Inventor

  • 1JAMES E. STANGROOM
Back to patent indexSource: USPTO 35 USC §181 secrecy order records