Patent ID: 7178704

Claim:
An electrically-operated dispenser for dispensing an adhesive, the electrically-operated dispenser comprising: a module body having an adhesive inlet; a nozzle coupled with the module body, said nozzle having an adhesive outlet and a valve seat between said adhesive inlet and said adhesive outlet; an electromagnetic coil including a plurality of windings; and an armature disposed in said module body, and said armature including a valve element having an opened position allowing adhesive flow through an annular gap between said valve element and said valve seat to said adhesive outlet and a closed position in which said valve element contacts said valve seat for preventing adhesive flow to said adhesive outlet; and a generally U-shaped pole disposed in said module body, said pole having a fixed position relative to said module body, said pole having a first arm and a second arm extending with a generally parallel and spaced-apart relationship toward said armature, said plurality of windings being wrapped about substantially an entire length of said first arm and said second arm, and said plurality of windings of said electromagnetic coil being selectively energized for generating an electromagnetic field capable of moving said armature relative to said pole to move said valve element from said closed position to said opened position.