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:
Apr. 02, 1985
Filed:
Feb. 18, 1983
Applicant:
Inventors:
Assignee:
Thomson-CSF, Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29D / ; H01G / ;
U.S. Cl.
CPC ...
264 22 ; 264 24 ; 264104 ; 264235 ; 2642358 ; 264320 ; 264346 ; 4251 / ;
Abstract
In a method of fabrication of piezoelectric polymer transducers by forging, a preform is subjected to flattening by compression in order to produce a radial orientation of the molecular chains constituting the polymer with respect to the center of pressure.