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:
Aug. 26, 2014
Filed:
Jan. 19, 2012
Charles W. Dawson, Big Lake, MN (US);
Barry W. Mattson, Elk River, MN (US);
Thomas L. Triplett, Rockford, MN (US);
Steven H. Fredrickson, Minneapolis, MN (US);
Christopher A. Lins, Crystal, MN (US);
Charles W. Dawson, Big Lake, MN (US);
Barry W. Mattson, Elk River, MN (US);
Thomas L. Triplett, Rockford, MN (US);
Steven H. Fredrickson, Minneapolis, MN (US);
Christopher A. Lins, Crystal, MN (US);
Graco Minnesota Inc., Minneapolis, MN (US);
Abstract
A flame safety system for a thermoplastic applicator comprises a gas burner and a flame indicator. The gas burner expels a jet of pressurized combustible gas from an outlet nozzle, and includes an attachment groove near the nozzle. The flame indicator includes an attachment ring configured to fit into the groove, thereby securing the flame indicator to the gas burner, and a flame path portion extending from the attachment ring into the jet of pressurized combustible gas. The flame path portion is formed from a material which incandescently glows whenever the jet of combustible pressurized gas is lit.