Dispensing pump

Details Dispensing pump Dispensing pump

1996-09-06

1998-11-03

Bomberg, Kenneth

Dispensing

With lock or fastening seal

Inhibiting actuation of discharge assistant

222207, 222375, 2223831, 222384, B67D 542

Patent

active

058296409

ABSTRACT:
A dispensing pump including an actuator coupled to a resilient bellow, wherein the bellow is in fluid communication with the contents of a container via an inlet valve. Expansion of the bellow, caused by the resilience of the bellow, creates negative pressure causing the contents of the container to be drawn through the inlet valve and into a space defined by the bellow. The dispensing pump also includes an outlet valve in fluid communication with the bellow such that compression of the bellow caused by the application of pressure to the actuator creates positive pressure within the bellow causing the contents held within the bellow to be forced through the outlet valve and out of an outlet of the dispensing pump.

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