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:
Jul. 29, 1997
Filed:
Apr. 18, 1995
Applicant:
Inventors:
Thomas F Scrivener, Smithsburg, MD (US);
Zhong Qian Mo, Baltimore, MD (US);
Assignee:
Frazier Precision Instrument Company, Inc., Hagerstown, MD (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01G / ;
U.S. Cl.
CPC ...
177229 ; 177255 ; 177212 ;
Abstract
A top loading load cell mass comparator having a load cell and a cantilevered beam connected between the load cell and a weight supporting platform which is self-centering to compensate for off-center loading when moving or replacing weights on the platform. A preload compressive force is applied to the load cell to minimize hysterisis and creep error in the load cell during weight exchanges on the weight supporting platform.