Fluid dispensing pump assembly

Details Fluid dispensing pump assembly Fluid dispensing pump assembly

1977-06-10

1980-09-30

Spar, Robert J.

Dispensing

With discharge assistant

With material supply container and discharge assistant with...

E05F 9043, F04B 2102

Patent

active

042250633

ABSTRACT:
An atomizing pump assembly for use with a variety of types of containers is disclosed in which a housing is formed with both an outlet port and an internal fluid chamber that communicates via a passageway with the outlet port. Tubular means provides communication between the fluid chamber in the housing and a reservoir of the material that is to be dispensed by the pump. A flexible frustroconical skirt or diaphragm having a valved opening therethrough is operatively located intermediate the tubular means and both the fluid chamber and the outlet port, with an integral upper portion of the diaphragm initially obstructing the outlet port. When an actuating cap is depressed, material within the fluid chamber is compressed until a minimum predetermined chamber pressure is achieved, whereby under pressure the skirt or diaphragm is flexed from its normal position to a discharge position. The flexing action results in movement of the diaphragm upper portion from its initial obstructing position to a non-obstructing position, whereby fluid contents may be discharged under pressure through the outlet port. Venting means are also provided.

REFERENCES:
patent: 947536 (1910-01-01), Wenkel
patent: 1709948 (1929-04-01), Proctor
patent: 1911474 (1933-05-01), Smith
patent: 3337096 (1967-08-01), Brown
patent: 3794222 (1974-02-01), Loewenthal
patent: 3967644 (1976-07-01), St. Laurent
patent: 3968905 (1976-07-01), Pelton
patent: 4057176 (1977-11-01), Horvath
patent: 4079865 (1978-03-01), Kutik
patent: 4084731 (1978-04-01), Ayres

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