Dispensing apparatus with heat exchanger and method of using...

Details Dispensing apparatus with heat exchanger and method of using... Dispensing apparatus with heat exchanger and method of using...

2011-03-08

2011-03-08

Ngo, Lien T (Department: 3754)

Dispensing

With heating or cooling means

Heating only

C222S593000

Reexamination Certificate

active

07900800

ABSTRACT:
An apparatus for dispensing a viscous material includes a dispenser body having an inlet and a discharge orifice. A valve element is mounted for movement in the dispenser body between an open position allowing flow from the discharge orifice, and a closed position preventing flow therefrom. An actuator is coupled to the valve element for actuation between the open and closed positions. A heat exchanger having a serpentine passage and a heater is coupled thereto, wherein the heater is in thermal communication with the dispenser body. The passage is configured to deliver the viscous material to the inlet at a uniform temperature. A method of dispensing a viscous material includes positioning a heat exchanger, having a fluid passage and a heater, in thermal communication with the dispenser body, and heating the material flowing through the fluid passage to a uniform temperature prior to delivering it to the inlet.

REFERENCES:
patent: 4009974 (1977-03-01), Scholl
patent: 4066188 (1978-01-01), Scholl et al.
patent: 4474311 (1984-10-01), Petrecca
patent: 4771920 (1988-09-01), Boccagno et al.
patent: 5645743 (1997-07-01), Zook
patent: 6952524 (2005-10-01), Bissonnette et al.
patent: 7190893 (2007-03-01), Kuebler et al.
patent: 2006/0157517 (2006-07-01), Fiske et al.

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