Hand pump assembly with a pump mechanism which is independent of

Details Hand pump assembly with a pump mechanism which is independent of Hand pump assembly with a pump mechanism which is independent of

1993-03-29

1994-10-18

Huson, Gregory L.

Dispensing

With discharge assistant

With material supply container and discharge assistant with...

222382, B67D 540

Patent

active

053560493

ABSTRACT:
A hand-held spray pump includes a pump mechanism which may be pre-assembled and a pump housing which receives and encloses the pump mechanism. The pump mechanism includes a minimal number of inexpensive parts which are slidably assembled and snapped together. The housing includes a body portion and a cover portion with the body portion slidably receiving a trigger for operating the pump mechanism and for slidably receiving the pump mechanism. After the pump mechanism has been inserted into the body portion, the cover is snap-fitted over the pump mechanism. By utilizing the aforedescribed configuration, the pump housing may be readily changed without requiring changes in the configuration of the pump mechanism.

REFERENCES:
patent: 3701478 (1972-10-01), Tada
patent: 3840157 (1974-10-01), Hellenkamp
patent: 4155487 (1979-05-01), Blake
patent: 4161288 (1979-07-01), McKinney
patent: 4336895 (1982-06-01), Aleff
patent: 4352443 (1982-10-01), Libit
patent: 4480768 (1984-11-01), Martin
patent: 4676408 (1987-06-01), Speitel
patent: 4691849 (1987-09-01), Tada
patent: 4944431 (1990-07-01), Blake
patent: 4953791 (1990-09-01), Tada
patent: 5040701 (1991-08-01), Knickerbocker et al.
patent: 5152436 (1992-10-01), Maas et al.
patent: 5156304 (1992-10-01), Battegazzore

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