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. 07, 1994
Filed:
Jun. 10, 1993
Donald W Cox, South Elgin, IL (US);
Thomas E DeSalvo, St. Charles, IL (US);
Hooshang Didandeh, Zionsville, IN (US);
Can M Toksoy, Carmel, IN (US);
Eaton Corporation, Cleveland, OH (US);
Abstract
An electrically operated thermally responsive valve having a bimetal operator arm heated by an electrical resistance heater for deflection to move a resilient poppet between an open and closed position on a valve seat for controlling flow to the valve outlet port. The base or active portion of the bimetal arm is formed of a first bimetal material with linear deflection properties up to 700.degree. F. for valve operation. The outboard end or compensator portion of the bimetal arm is formed of a second bimetal material having linear deflection properties up to 300.degree. F. for ambient compensation, but very low deflection properties at valve heater temperatures in the range 300.degree. F.-700.degree. F. for minimizing overcompensation from heating of the outboard portion due to heat transfer from the active portion.