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:
Jun. 12, 2001
Filed:
Dec. 29, 1998
Applicant:
Inventors:
Chandrashekhar H. Joshi, Bedford, MA (US);
Bruce R. Bent, Scituate, MA (US);
Assignee:
Energen, Inc., Billerica, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02N 2/04 ;
U.S. Cl.
CPC ...
H02N 2/04 ;
Abstract
A magnetostrictive actuator, comprising: a magnetostrictive member which elongates upon application of a magnetic field; a translating member mechanically coupled to the magnetostrictive member, for translating the change in length of the magnetostrictive member into a desired action; and a selectively-energized coil surrounding the magnetostrictive member, to apply a magnetic field to the magnetostrictive member, and thus selectively change the length of the magnetostrictive member, and thereby cause the translating member to create the desired action.