Patent ID: 7073733
Filing Date: 2006-07-11
Classification: B05B

Abstract:
1. A pump for dispensing fluid, said pump comprising: a pump body; a plurality of cantilevered fingers disposed within said pump body; a piston disposed to slidably move at least partially within said fingers; and, a stop member at least partially disposed about said piston, wherein said stop member and said fingers being fixed to said pump body such that movement of said piston results in relative movement between said fingers and said stop member, wherein said stop member is located to be contacted by said fingers upon a predetermined extent of relative movement between said stop member and said fingers, said fingers flexing upon contacting said stop member such that said fingers yieldingly inhibit movement of said piston, whereby a predetermined amount of force is required to overcome the inhibition of movement of said piston so as to enable operation of the pump.