US 11,813,638 B2
Heating device for hot melt glue gun
Haowei Zhou, Zhejiang (CN); and Jidong Fan, Zhejiang (CN)
Assigned to Ningbo Weilder Electric Appliance Co., Ltd.
Filed by Fenghua Weilder Electric Appliance CO., LTD., Zhejiang (CN)
Filed on Jul. 14, 2017, as Appl. No. 15/650,629.
Claims priority of application No. 201710457247.X (CN), filed on Jun. 16, 2017.
Prior Publication US 2018/0361421 A1, Dec. 20, 2018
Int. Cl. B05C 17/005 (2006.01); B29B 13/02 (2006.01)
CPC B05C 17/00546 (2013.01) [B29B 13/022 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A heating device for a hot melt glue gun, comprising:
a tip and at least one heating piece, the tip comprising a circular-disk shaped connecting portion capable of being attached to a glue gun, a tapered heating portion and a circular-shaped glue output portion which are connected in turn, wherein the glue output portion is disposed on one end of the tapered heating portion and the connecting portion is disposed on the other end of the tapered heating portion, wherein the center of the connecting portion and the center of the glue output portion are concentric,
wherein outer walls of the tapered heating portion comprises at least one straight wall perpendicular to a top surface of the connecting portion and parallel to the axis of the tapered heating portion, wherein the at least one heating piece is disposed on the at least one straight wall;
wherein the heating device further comprising an insulating jacket which is wrapped on an outer circumference of the tapered heating portion, wherein the at least one heating piece is fixed between the insulating jacket and the tapered heating portion.