Patent ID: 6253969
Filing Date: 2001-07-03
Classification: B05C

Abstract:
A dispenser for a viscous material, comprising:a housing having a forward end and a rearward end;a plunger movably mounted within the housing, wherein the plunger includes a shaft and a head;an operator mounted on the housing and operatively connected to the plunger to selectively advance the plunger forward relative to the housing; anda resilient washer mounted snugly on the shaft and disposed immediately rearward of an overlapping shoulder on the housing, whereby when the operator advances the plunger, the plunger moves forward relative to the housing and the washer, and an inward portion of the washer is deflected forward a lesser amount than the plunger, and when the operator is free of externally applied force, the washer urges the plunger rearward the lesser amount to contemporaneously relieve pressure applied by the head against the viscous material.