One-piece, zero cavity nozzle for swirl spray of adhesive

Details One-piece, zero cavity nozzle for swirl spray of adhesive One-piece, zero cavity nozzle for swirl spray of adhesive

B - Operations, Transporting

05

D

B05D 1/26 (2006.01) B05B 7/08 (2006.01) B05B 7/10 (2006.01) B05C 5/02 (2006.01) B05C 5/04 (2006.01)

Patent

CA 2139335

A one-piece nozzle (14) adapted for use within an adhesive dispenser (10) includes a nozzle body (14) formed with a throughbore (40) having a discharge outlet (44) within a nozzle tip portion (42) which emits a bead of adhesive. A nozzle cap (38) mounts the noz- zle body (14) to the adhesive dispenser (10) such that an adhesive passageway (30) within the dispenser (10) communicates with the throughbore (40) in the nozzle body (14) and a plunger valve (22) associated with the adhesive dispenser (10) extends into the nozzle body (14) in position to engage a seat (46) formed at the nozzle tip. A number of air jet bores (110) are drilled in the nozzle body (14), each communicating with an air passage (140) formed between an outer surface (96) of the nozzle body (14) and an inner surface (130) of the nozzle cap (38), which discharge jets of air into contact with the adhesive bead producting an elongat- ed adhesive fiber deposited in a spiral pattern onto a substrate.

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