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. 16, 2011
Filed:
Oct. 30, 2007
Gerald W. Quinn, North St. Paul, MN (US);
Gerald P. Schouten, Hudson, WI (US);
Gerald W. Quinn, North St. Paul, MN (US);
Gerald P. Schouten, Hudson, WI (US);
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
A nozzle, which is for in at least one embodiment a hot glue gun, has a resilient cap that is positioned within the nozzle's conduit. The resilient cap has at least one slit that serves as a check valve. The invention solves the problem of resilient caps in hot glue guns becoming unseated and wedging in the tapering section of the glue gun nozzle conduit by adding a collar inside the conduit that prevents the base section of the resilient cap from wedging in deeper into the nozzle's conduit, which would otherwise make the valve fail.