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. 11, 1985
Filed:
Sep. 19, 1983
Applicant:
Inventors:
John W Kroll, Greendale, WI (US);
Roy Hyink, Wauwatosa, WI (US);
Assignee:
Eaton Corporation, Cleveland, OH (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01K / ;
U.S. Cl.
CPC ...
116216 ; 116221 ; 374205 ;
Abstract
A shutter 4 is movably mounted in a housing 6 for actuation between given positions by an SME (shape memory effect) element 8 in response to a given level of current flow through the SME element 8 causing I.sup.2 R heating of the latter above its transition temperature. The shutter 4 may be an indicator flag exposed by a window 10 in the housing 6, or may interrupt an optic beam 22.