Manually operated pump using hollow flexible member as pumping c

Details Manually operated pump using hollow flexible member as pumping c Manually operated pump using hollow flexible member as pumping c

1978-06-12

1980-01-08

Gluck, Richard E.

Dispensing

Resilient wall

Supply container delivering to receiving chamber

222214, 417478, B65D 3700, F04B 4308

Patent

active

041824652

ABSTRACT:
A manually operative pump connected to a container having liquid therein to enable the liquid to be discharged as a spray employs a hollow pistol-shaped housing. Liquid is pulled up through an opening in the bottom of the handle and is discharged as a spray via an opening in the free end of the barrel. A hollow flexible member open at both ends extends in the housing from the handle into the barrel and is held in position by curved internal guides. The member has a flexible wall defining a variable volume pump chamber adapted to assume a fully distended position of maximum volume and a collapsed position of lesser volume. A manually operable trigger pivotally secured to the barrel can be pressed into an opening in the barrel and an aligned opening in the guides to engage the wall and change the volume of the chamber. A horizontally elongated poppet is disposed in the end of the member adjacent the free end of the barrel and has an off-center opening connected by a channel to the barrel opening. The poppet also has a longitudinal groove connected to the off-center opening. When the member is in the collapsed position, liquid can flow through the member and a groove and the spray is produced. When the member is fully distended, passage of liquid between the member and groove is blocked.

REFERENCES:
patent: 3749290 (1973-07-01), Micallef
patent: 3986644 (1976-10-01), Grogar et al.
patent: 3995774 (1976-12-01), Cooprider et al.
patent: 3995776 (1976-12-01), Micallef
patent: 4101057 (1978-07-01), LoMaglie
patent: 4138038 (1979-02-01), Grogar

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