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:
Dec. 19, 1978
Filed:
Nov. 03, 1977
Applicant:
Inventor:
Richard K Walker, Convent Station, NJ (US);
Assignee:
Ohaus Scale Corporation, Florham Park, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
310328 ; 310338 ; 310348 ; 310354 ; 29 2535 ;
Abstract
A piezo-electric disc (e.g., a force transducer or a radio reference crystal) is mounted on its edge between two opposing anvils of material which is selected to plastically deform only under a relatively high proof load applied to the disc through the anvils while an extreme pressure lubricant is present between the edge of the disc and the anvils to provide seats of limited area for the edge of the disc.