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:
Oct. 11, 1977
Filed:
Jan. 29, 1976
Richard L Perl, Mansfield, OH (US);
The Tappan Company, Mansfield, OH (US);
Abstract
A control circuit for a gas appliance includes ignition and hold circuits, the former providing for series energization of the heater of a thermal fuel valve and an electric igniter positioned proximate the appliance burner port area for ignition of the gas fuel and air mixture exiting the same and the latter providing for direct energization of only the igniter to hold or to maintain the appliance at a warm temperature. Moreover, the fuel valve includes an exterior selector mechanism for facile calibration and/or other adjustment for effective valve operation with either of two different gases at respectively different pressures, such as, for example, natural gas and bottled gas.