Patent ID: 6065888
Filing Date: 2000-05-23
Classification: B05C

Abstract:
A hot melt glue gun for receiving solid glue, heating the solid glue to melt temperatures and dispensing the melted glue, said hot melt glue gun comprising:a glue gun housing;feed means for feeding a solid glue into said glue gun housing by way of a solid glue feed region defined by a periphery of the solid glue prior to heating the solid glue within said glue gun;a heating chamber body having a wall which defines a heating chamber disposed interiorly within said heating chamber body, said heating chamber being disposed within said glue gun housing for receiving the solid glue from said feed means;a heating element disposed within said glue gun housing and being disposed in relation to said heating chamber body for transferring heat to the solid glue within said heating chamber;a bushing having seal surfaces which sealingly engage said heating chamber body and secure said bushing to a rearward portion of said heating chamber body, said bushing further having an aperture which is sized for receiving and sealingly engaging against the periphery of the solid glue; anda glue retention chamber defined between the wall of said heating chamber and said solid glue feed region, wherein said heating chamber has an effective interior diameter which is not substantially less than five percent (5%) greater than the diameter of said solid glue feed region, prior to heating the solid glue.