Fluid dispensing pump having axially deformable valve

Details Fluid dispensing pump having axially deformable valve Fluid dispensing pump having axially deformable valve

1979-02-23

1980-10-14

Scherbel, David A.

Dispensing

With discharge assistant

With material supply container and discharge assistant with...

222383, 239333, 417566, B05B 1102

Patent

active

042276284

ABSTRACT:
In the illustrative embodiments of the invention disclosed, a non-aerosol pump includes a housing, a barrel within the housing forming a valve chamber, a pumping chamber within the barrel, a valve gland within the valve chamber for controlling intake and discharge flow to and from the pumping chamber, and a hand or finger-operated plunger for operating the pump. The valve gland has a circular seal lip on its axially outer surface for establishing a circular seal around the opening from the valve chamber to the pumping chamber. As pressure within the pumping chamber exceeds and falls below predetermined limits, the valve gland snaps open and closed, respectively, to provide a sharp on-off spray discharge. The check valve for controlling flow from the container to the pumping chamber may be formed integrally with the valve gland and of the same material or, alternatively, may comprise a ball check valve located within the gland.

REFERENCES:
patent: 3162334 (1964-12-01), Miller
patent: 3507586 (1970-04-01), Gronemeyer et al.
patent: 3527551 (1970-09-01), Kutik et al.
patent: 3730217 (1973-05-01), Gute
patent: 3908870 (1975-09-01), Nozawa et al.
patent: 3923250 (1975-12-01), Boris
patent: 4046292 (1977-09-01), Corsette
patent: 4079865 (1978-03-01), Kutik
patent: 4084731 (1978-04-01), Ayres
Vernay Laboratories, Inc., Trade Literature: (No Date).

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