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:
Jan. 28, 1992
Filed:
Oct. 31, 1990
Robert E Orner, Stratford, CT (US);
Aurelio V Cassarino, West Hartford, CT (US);
Roger P Sepso, Stratford, CT (US);
Robertshaw Controls Company, Richmond, VA (US);
Abstract
A control device, refrigerator system utilizing the control device and methods of making the same are provided, the control device comprising a housing having a valve seat and having an inlet and an outlet interconnected together by the valve seat, a movable valve member carried by the housing and being adapted to open and close the valve seat by being respectively moved to an open position thereof and a closed position thereof, and a shape memory unit carried by the housing and being operatively interconnected to the valve member to move the valve member to one of the positions thereof by the unit sensing a temperature above a first temperature and to move the valve member to the other of the positions thereof by the unit sensing a temperature below a second temperature, the shape memory unit comprising a shape memory wire having opposed ends interconnected to the housing and having an intermediate portion thereof operatively interconnected to said valve member.