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:
Jan. 31, 1984
Filed:
May. 27, 1981
Shih Chuang, Irvine, CA (US);
Statek Corporation, Irvine, CA (US);
Abstract
An improved mounting apparatus and method for a piezoelectric tuning fork (10) of the type made from a rectangular plate of quartz or similar material, the fork having a stem portion (12) and a pair of tines (14, 16) extending from the stem and defining between them a crotch (18) where they join the stem. The stem is supported on a pedestal (20-36) in such a way that the forwardmost edge (38) of the pedestal is spaced a distance d (in mils) having a magnitude in the range of 2565n/f to 3135n/f, where n is an integer and f is the fundamental frequency of the tuning fork in kilohertz. Improved suppression of overtone components is achieved during operation in the fundamental mode.