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. 25, 2003
Filed:
May. 03, 2002
Applicant:
Inventors:
John L. Butler, Cohasset, MA (US);
Alexander L. Butler, Milton, MA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04R 1/700 ;
U.S. Cl.
CPC ...
H04R 1/700 ;
Abstract
An electro-mechanical transducer, which provides amplified piston motion from an orthogonal drive direction wherein the electro-mechanical drive additionally provides the inertial reactive mass for the moving mass of the piston. The piston motion is amplified by lever arms, which are typically attached to a piezoelectric or electrostrictive drive system. The arrangement allows a compact, high output transducer design.