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. 14, 2003
Filed:
Feb. 27, 2001
Thomas Johnson, Winnebago, MN (US);
Weigh-Tronix, Inc., Fairmont, MN (US);
Abstract
The electronic load cell is for measuring force using a force sensor within and has reduced susceptibility to shock or impact in the direction of its measurement vector. The load cell device includes a load cell structure formed of a suitable solid and including vertically spaced apart, generally parallel horizontal elements integrally formed with longitudinally spaced apart, generally parallel vertical elements with flexible members. Flexures interconnect each horizontal element with the vertical elements. A force sensor is connected between the horizontal element connecting the two flexures on the first side of the parallelogram and a spring connected to the second parallel member. The reduced shock susceptibility is achieved by placing the center of mass of the movable end of the spring connected to the force sensor nearly at or at a distance from the plane defined by the flexing axis of the flexible members connecting the first perpendicular member such that the movement of this mass is not in the direction of the axis of sensitivity of the sensor.