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:
Nov. 25, 1980
Filed:
Jun. 20, 1978
James A Hirsch, Niagara Falls, NY (US);
The Carborundum Company, Niagara Falls, NY (US);
Abstract
An apparatus for fuel ignition comprising an electrical source for providing electrical current; an electrically operated fuel ignition means; a valve means which allows passage of fuel to the ignition means when the valve means is opened; a first valve control means which will open the valve upon application of an electrical current and a second valve control means which will retain the valve means in an open position but will not initially open the valve upon application of an electrical current; an activating switch electrically connected between the electrical source and the rest of the apparatus so that the apparatus will not operate unless the activating switch is closed; a time delay switch connected between the activating switch and the rest of the apparatus and connected to an ignition sensing switch means so that the time delay switch stops the flow of electrical current to the rest of the apparatus if the ignition sensing switch means does not sense ignition within the time delay; and an ignition sensor for sensing ignition and an ignition sensing switch means responsive thereto. The ignition sensing switch means, when the activating switch is closed, switches electrical current from the first valve control means to the second valve control means after ignition is sensed, shunts out the time delay relay after ignition is sensed and disconnects the ignition means after ignition is sensed. If the ignition sensor ceases to sense that ignition is taking place, the ignition sensing switch again connects the first valve control means, the time delay relay and the ignition means.