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:
Nov. 13, 1990
Filed:
Oct. 06, 1989
Applicant:
Inventors:
Thomas J Gray, Waukesha, WI (US);
Mark W Lampark, Racine, WI (US);
Assignee:
Quadrastat Corporation, City of Industry, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01L / ;
U.S. Cl.
CPC ...
338-2 ; 338108 ; 338153 ; 7386265 ;
Abstract
A foot operated control device including electrical force sensing devices functional to sense forces applied to the control device and to produce electrical signals proportional to the force applied, the electrical signals being adapted to operate electrically responsive hydraulic control valves.