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. 13, 1993
Filed:
Jun. 21, 1989
Howard T Savage, Greenbelt, MD (US);
Arthur E Clark, Adelphi, MD (US);
Marilyn Wun-Fogle, Gaithersburg, MD (US);
Lawrence T Kabacoff, Columbia, MD (US);
Antonio Hernando, Madrid, ES;
Bruce Beihoff, Wauwatosa, WI (US);
The United States of America as represented by the Secretary of the Navy, Washington, DC (US);
Abstract
Magnetostrictive wire having a low surface-to-volume ratio established by a onstant non-planar cross-section, is helically deformed into contact with a shaft under a stress maintaining the wire in fixed relation to the shaft surface. Magnetic anisotropy is imparted to the wire by twist thereof about its cross-sectional axis while the wire is being helically deformed into contact with the shaft surface to form a torque sensor through which accurate torque detection is achieved.