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:
Mar. 31, 1987
Filed:
Jun. 07, 1985
Michael K Johnson, San Francisco, CA (US);
Other;
Abstract
A load cell includes base and load receiving members connected together by a pair of parallel flexures to form a parallelogram configuration. One of the flexures has at least one strain gage secured thereon, along with a cantilevered stop member positioned between the base and load receiving members. The stop member is suspended between the ends of a pair of adjustable set screws threadably mounted in the base and load receiving members to provide for an overload and underload protection of the load cell. Additional adjustable set screws are strategically placed in the load cell to further provide for the selective adjustment and redistribution of stresses sensed by the strain gage whereby the same electrical signal will be produced independent of the location of a load along a longitudinal axis of the load cell or a second axis perpendicular thereto. Thus, the load cell cannot be overstressed and can be adjusted to provide the same weight readout regardless of the position of the load on a platter secured on the load receiving member.