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. 07, 1983
Filed:
Jan. 26, 1981
Jeffrey A Jackson, Urbana, IL (US);
Douglas J Kluge, Golden Valley, MN (US);
Gary R Bluem, Wayzata, MN (US);
Eugenio Espiritu Santo, Cedar Falls, IA (US);
Carl E Kittle, Cedar Falls, IA (US);
Deere & Company, Moline, IL (US);
Abstract
A load transducer for sensing longitudinal tension includes a pair of deformable members with spaced-apart central portions, the spacing between which varies as a function of the longitudinal tension applied to the ends of the deformable members. The plates of a variable parallel plate capacitor are carried by insulating supports attached to each of the central portions. Alignment rods maintain the plates in parallel alignment. A circuit produces an output signal with a frequency proportional to the tension sensed by the draft sensor.