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:
Nov. 02, 2004
Filed:
May. 20, 2002
Applicant:
Inventors:
Vyacheslav D. Kats, East Rockaway, NY (US);
Arnold S. Gordon, Woodmere, NY (US);
Assignee:
Circuits and Systems, Inc., East Rockaway, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01G 3/14 ;
U.S. Cl.
CPC ...
G01G 3/14 ;
Abstract
A weighing apparatus includes a base ( ) supporting a cantilevered elastic member ( ) bearing a load platform ( ). The interior of the elastic member ( ) is hollowed and is provided with first ( ) and second ( ) piezoelectric transducers mounted on respective opposed posts. The transducers are arranged substantially parallel to each other with a small gap between them and are coupled to an amplifier ( ) to form a “delay line” and a positive feedback loop, to form a natural oscillator.