Patent ID: 8171973
Filing Date: 2012-05-08
Classification: B05C,Y10T

Abstract:
1. A nozzle for dispensing molten adhesive, the nozzle comprising: a body including a fluid supply passage and a recess in fluid communication with said fluid supply passage, said fluid supply passage adapted to receive the molten adhesive, said recess defining an inner peripheral surface and a confronting surface; a nozzle plate disposed within said recess and including an upstream surface, a downstream surface, and a peripheral surface extending between said upstream and downstream surfaces, said upstream surface facing said confronting surface of said body; a plenum defined by said body and said nozzle plate and including a first portion between said upstream surface of said nozzle plate and said confronting surface of said body, said plenum being in fluid communication with said fluid supply passage; a plurality of spaced fluid discharge passages, each of said fluid discharge passages being in fluid communication with said plenum and including a non-circular outlet extending through said downstream surface, said non-circular outlets being spaced apart from one another in a predetermined pattern; and a shim plate disposed in said plenum, said shim plate including an inner portion and an outer portion including a plurality of peripherally spaced notches formed therein, said inner portion of said shim plate being disposed between said upstream surface of said nozzle plate and said confronting surface of said body, said outer portion of said shim plate being press fit between said inner peripheral surface of said body and said peripheral surface of said nozzle plate such that said spaced notches define said spaced fluid discharge passages, wherein said peripheral surface of said nozzle plate has a first shape and said inner peripheral surface of said body has a second shape that is complementary to said first shape, and wherein said nozzle plate further comprises a plurality of standoffs extending in an upstream direction from said upstream surface of said nozzle plate, said standoffs being in contacting engagement with said confronting surface of said body, said standoffs establishing a height of said first portion of said plenum.