Title: Hot melt adhesive dispensing system of the hand held gun type

Abstract: A hot melt adhesive dispensing system that includes a hand held gun and a molten adhesive source, the gun and the source being selectively connectable one with the other in a novel manner to permit charging and recharging of the gun with molten adhesive from the molten adhesive source. The hand gun includes novel charge valve structure adapted to interconnect with novel feed valve structure mounted on the hot melt adhesive source so as to accomplish transfer of a hot melt adhesive charge in molten form, from the source to the gun storage chamber. The adhesive is pressurized within the gun's storage chamber by a novel pressure device at least partially incorporated within the storage chamber, thereby providing the motive force to cause discharge of molten adhesive from the gun's nozzle in response to manual activation of the gun's trigger.

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Inventors: Akers, Larry D. (Vermilion, OH, US)
Scholl, Charles H. (Vermilion, OH, US)
Smith, Joseph S. (Euclid, OH, US)
Williams, Edward A. (Elyria, OH, US)

Application Number: 762530
Filing Date: 1977-01-26
Publication_date: 1979-03-20
Assignee: Nordson Corporation (Amherst, OH)
Primary Class(es): 141/2 141/18, 141/351, 222/146.5
Other Classes:
US Patent Ref:

3351105	Nov, 1967	Di Perna	141/18.
3587930	Jun, 1971	Schultz	222/146.
3954206	May, 1976	Salonen	222/146.

Other Refs:
Primary Examiner: Aegerter, Richard E.
Assistant Examiner: Schmidt, Frederick R.
Attorney: Wood, Herron & Evans