Intermittently operable recirculating control module and...

Details Intermittently operable recirculating control module and... Intermittently operable recirculating control module and...

2006-04-24

2009-11-03

Nguyen, Dinh Q (Department: 3752)

Fluid sprinkling, spraying, and diffusing

Processes

Including heating or cooling

C239S124000, C239S128000, C239S133000, C239S134000, C239S135000, C239S137000, C239S267000, C239S268000, C239S550000, C239S551000, C239S125000

Reexamination Certificate

active

07611071

ABSTRACT:
A hot melt adhesive material application system is disclosed wherein both the control module and the dispensing nozzle are effectively provided with internal alternative flow paths. A fixed orifice is internally incorporated within the dispensing nozzle such that when the hot melt adhesive material is not being supplied to the dispensing nozzle and its discharge orifice, the hot melt adhesive material can be recirculated through the dispensing nozzle and the control module in accordance with controlled backpressure parameters which correspond to the supply pressure which is characteristic of the hot melt adhesive material being supplied to the dispensing nozzle and its discharge orifice.

REFERENCES:
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patent: 6422428 (2002-07-01), Allen et al.
patent: 6607104 (2003-08-01), McGuffey
patent: 6688498 (2004-02-01), McGuffey
patent: 6935576 (2005-08-01), Hara
patent: 2004/0099752 (2004-05-01), Boger

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