Patent ID: 7677416
Filing Date: 2010-03-16
Classification: B05B

Abstract:
1. A manually operated liquid dispenser comprising: a pump chamber having an interior volume and a cylindrical wall surrounding the interior volume, the pump chamber cylindrical wall having a center axis; a dispenser housing having an interior volume containing the pump chamber cylindrical wall, the dispenser housing having a top wall and a pair of side walls that surround the pump chamber cylindrical wall with the entire pump chamber cylindrical wall being spaced inwardly and separated from each of the dispenser housing top wall and side walls; a pump plunger mounted to the dispenser housing for axially reciprocating movement of the pump plunger relative to the pump chamber, the pump plunger having a liquid discharge passage that communicates with the pump chamber interior volume; the pump plunger having a top wall and a pair of side walls that surround the liquid discharge passage, the pump plunger top wall and side walls each telescoping with the respective dispenser housing top wall and side walls in response to reciprocating movement of the pump plunger relative to the pump chamber.