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:
Feb. 09, 2016
Filed:
Dec. 16, 2009
Arno Schmittner, Rossdorf, DE;
Ralf Scherer, Mainz, DE;
Arno Schmittner, Rossdorf, DE;
Ralf Scherer, Mainz, DE;
Hottinger Baldwin Messtechnik GmbH, Darmstadt, DE;
Abstract
A load cell includes a longitudinal body including force input and output elements and a bending beam, strain gages, and a hermetically sealed enclosure. A force applied onto the input element perpendicularly to the longitudinal axis causes bending strain of the beam, which is measured by the strain gages. The enclosure includes a stiff pipe sleeve and two ring elements, which each include a membrane that is more flexible than the pipe sleeve, and which support the pipe sleeve relative to and spaced radially away from the longitudinal body. The membranes preferably decouple the pipe sleeve from the longitudinal body so that essentially none of the applied force is shunted into the pipe sleeve. Preferably a cylindrical outer surface of the pipe sleeve can avoid accumulation of contaminants.