Coating implements with material supply – With means to impart heat to material – At discharge portion of implement
Patent
1993-09-23
1994-11-08
DeMille, Danton D.
Coating implements with material supply
With means to impart heat to material
At discharge portion of implement
219505, 219540, 219544, B05L 1700, H05B 310
Patent
active
053621646
ABSTRACT:
A device for heating a substantially solid glue stick or the like includes a heating chamber housing having a heating chamber formed therein and a separate elongated passage including a first open end for receiving a substantially solid glue stick, and a second opposed open end defining an exit opening for melted glue. The heating chamber has an open side and a positive temperature coefficient resistant cartridge positioned in the chamber for heating the housing adjacent to the passage to a temperature sufficient to soften a glue stick therein. A cam structure is located in the chamber engaged with the cartridge adjacent the open side of the chamber and a spring is mounted on the housing in engagement with the cam structure for urging the cam into engagement with the cartridge thereby to accommodate expansion and contraction of the cartridge during operation of the device.
REFERENCES:
patent: 4212425 (1980-07-01), Schlick
patent: 4814584 (1989-03-01), Bohlender et al.
patent: 5194717 (1993-03-01), Cowen et al.
DeMille Danton D.
Electro-Matic Staplers Inc.
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