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:
Oct. 13, 1998
Filed:
Sep. 27, 1996
John P Harrell, Mission Viejo, CA (US);
Hughes Electronics Corporation, El Segundo, CA (US);
Abstract
A control moment gyro having a housing enclosing a spinning momentum wheel. A rocking plate circumscribes the housing and is compliantly connected thereto by a set of isolator struts and non-contacting actuators which isolate the rocking plate from the inherent vibrations and oscillations of the momentum wheel. The rocking plate is pivotably connected to a gimbal ring about a first pivot axis normal to the spin axis of the momentum wheel. The gimbal ring is pivotably connected to the structure of the spacecraft about a second axis orthogonal to the spin axis and the first pivot axis. Actuators are provided to control the attitude of the housing relative to the rocking plate, the rocking plate relative to the gimbal ring, and the gimbal ring relative to the spacecraft.