The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 20, 1976
Filed:
Mar. 11, 1974
Howard W Boothroyd, Amherst, NH (US);
The United States of America as represented by the Secretary of the Army, Washington, DC (US);
Abstract
A gyroscopic rate switch is held in an open position by a torsionally resined gimbal in a pressurized compartmentalized housing. Run-up of the rotor, uncaging of the gimbal, and actuation of electrical switches is accomplished by controlled release of pressurized gas from the housing through operatively positioned orifices in the gimbal to an exhaust port. A temperature compensated by-pass valve in the housing makes the rate switch operation insensitive to and independent of environmental changes in temperatures by providing an alternate gas escape route for the gas available for rotor spin-up. The rate switch is functionally operated by the precession of the uncaged gimbal upon spin-up of the rotor and spin of the missile.