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. 17, 2001
Filed:
Nov. 04, 1999
Applicant:
Inventors:
Glenn E. Warnaka, State College, PA (US);
Mark E. Warnaka, Howard, PA (US);
Assignee:
Noise Cancellation Technologies, Inc., Linthicum, MD (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 4/108 ;
U.S. Cl.
CPC ...
H01L 4/108 ;
Abstract
An assembly for utilization in a loudspeaker system is disclosed. The assembly comprises a substantially flat piezoelectric element capable of being excited by applied electric potential, a diaphragm that is driven by the excited piezoelectric element, said diaphragm having a surface area that is at least 20 times the surface area of the piezoelectric element and at least one motion coupler which is attached to at least a portion of the outer perimeter of the piezoelectric element and on its underside to the diaphragm.