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:
Apr. 28, 1987
Filed:
Mar. 03, 1986
Applicant:
Inventor:
Richard D Bartholomew, Huntsville, AL (US);
Assignee:
The Boeing Company, Seattle, WA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05D / ;
U.S. Cl.
CPC ...
137 83 ; 251 11 ; 60530 ;
Abstract
An optical feedback loop system used in conjunction with an optical hydraulic servovalve. The system uses light energy from a single fiber optic bundle for expanding a gas in a pair of bellows. When one of the bellows is expanded a jet pipe connected to a servo fluid inlet is moved from a first fluid outlet to a second fluid outlet.