No-drip hot melt glue gun
AssigneeAdhesive Technologies, Inc.
InventorRichard A. Belanger
Life of this patent
Estimating the term…
Abstract
A hot melt glue gun provides a melt chamber for supplying melted glue to a discharge nozzle. An auxiliary chamber is connected to the melt chamber, and melted glue is drawn from the melt chamber into the auxiliary chamber when discharge of glue is terminated. The glue drawn from the melt chamber reduces the possibility of glue dripping from the discharge nozzle.
Claims8
In a hot melt glue gun (2) having a glue stick advancing mechanism (6) for advancing glue into a melt chamber (10), characterized in that an auxiliary chamber (16) is positioned to receive melted glue from the melt chamber (10), a passage (18) connects the melt chamber (10) to the auxiliary chamber (16), and an assembly that cooperates with the trigger to draw melted glue from the melt chamber into the auxiliary chamber upon termination of dispensing of glue and returns glue from said auxiliary chamber when dispensing of glue begins.
A hot melt glue gun (2) comprising a body (4), a melt chamber (10) mounted in said body (4) for heating a glue composition, a discharge nozzle (14) connected to said melt chamber (10) for receiving glue therefrom and discharging glue, and a glue stick advancement mechanism (6) for selectively supplying glue to said melt chamber (10) and causing glue in said melt chamber to discharge through said discharge nozzle (14), characterized by an auxiliary chamber (16) in fluid communication with said melt chamber (10), a siphon mechanism (20) that draws glue from said melt chamber into said auxiliary chamber upon termination of the supply of glue to said melt chamber (10) by said glue advancement mechanism (6).
Dependencies are inferred from the claim text.