초록 ▼

An extrusion nozzle assembly for use on a dispenser of molten hot melt adhesive. The nozzle comprises a heat conductive insert housed within a heat insulative plastic holder. A resilient seal within the holder prevents leakage between the nozzle and the dispenser when the nozzle is threaded only “fi

An extrusion nozzle assembly for use on a dispenser of molten hot melt adhesive. The nozzle comprises a heat conductive insert housed within a heat insulative plastic holder. A resilient seal within the holder prevents leakage between the nozzle and the dispenser when the nozzle is threaded only “finger tight”onto the dispenser.

대표청구항 ▼

An extrusion nozzle adapted to be removably secured to the end of a heated hot melt adhesive dispenser of the type having a valve contained therein, said nozzle comprising a heat insulative holder having connector means formed thereon for removably securing said holder to said dispenser, said holder

An extrusion nozzle adapted to be removably secured to the end of a heated hot melt adhesive dispenser of the type having a valve contained therein, said nozzle comprising a heat insulative holder having connector means formed thereon for removably securing said holder to said dispenser, said holder having an axial bore extending therethrough, a heat transmitting metal insert, said insert having an axial passage extending therethrough terminating in an outlet orifice, said insert having a generally tubular section and a radial flange extending outwardly from said tubular section at one end remote from said outlet orifice, said insert flange having a flat end surface adapted to be placed in metal to metal surface contact with a flat heated surface of said dispenser when said holder is secured to said dispenser so as to facilitate transfer of heat from said flat heated surface of said dispenser to said insert flange, said flange and the major portion of said tubular section of said metal insert being contained within said bore of said holder so that heat transferred from said dispenser to said flange of said insert is readily transferred to the outlet orifice end of said insert with a minimum of heat loss, and resilient sealing means contacting said flange of said insert for forming a seal between said insert and said dispenser.