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. 11, 1988
Filed:
May. 26, 1987
Applicant:
Inventor:
Frederick D Griswold, Jr, Dubuque, IA (US);
Assignee:
Deere & Company, Moline, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01B / ;
U.S. Cl.
CPC ...
73105 ; 33521 ;
Abstract
The invention is directed to an uplift sensor for detecting uplift from a planar surface. The sensor comprises wedge-shaped bracket having an elongated member mounted therein which contacts the uplift and in response thereto depresses a hydraulic piston in a hydraulic cylinder thereby producing a hydraulic uplift signal. The sensor is provided with a spring operatively coupled between the elongated member and the mounting bracket for biasing the elongated member downwardly towards the uplift.