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:
Jun. 06, 1995
Filed:
Dec. 04, 1984
Applicant:
Inventors:
Roderick MacLennan, Stratford, CT (US);
Karl H Wallischeck, Fairfield, CT (US);
Assignee:
United Technologies Corporation, Hartford, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05B / ;
U.S. Cl.
CPC ...
318565 ;
Abstract
The output response of a pilot valve controlled servo 10 is monitored by a computer 20 using a transducer 16 on the main control valve 12 and a transducer 11 on the servo output 10a. The response is compared by determining the predicted output response and response time from a mathematical model for the servo, and if the response or response time is incorrect, a warning indication is provided.