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. 10, 1978
Filed:
Apr. 05, 1976
Applicant:
Inventor:
Richard L Perl, Mansfield, OH (US);
Assignee:
The Tappan Company, Mansfield, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K / ; F03G / ;
U.S. Cl.
CPC ...
251 11 ; 251 75 ; 236 / ; 236D / ; 2361 / ;
Abstract
A gas valve has a thermally responsive actuator and an electric heater for heating the actuator normally to produce a displacement output that moves a constrained spring to an over-center position in order to snap open the valve poppet. Portions of the actuator and the poppet holder are aligned such that the actuator portion will interferingly engage the poppet holder portion to move the poppet to its closed position when the heater receives an excessive electric power input causing an excessive mechanical displacement output of the actuator.