Upright/inverted sprayer

Details Upright/inverted sprayer Upright/inverted sprayer

1997-05-22

1998-07-07

Derakshani, Philippe

Dispensing

With discharge assistant

With material supply container and discharge assistant with...

222382, 2224815, B67D 540

Patent

active

057755485

ABSTRACT:
A manually actuated liquid pump sprayer is capable of use in both upright and inverted positions without leakage through the vent port by the provision of a first slider valve which covers an inlet port in the upright position and which uncovers that port when the pump is inverted. A second slider valve located within the pump body is provided for uncovering the vent port in the upright position of spray, and for covering that vent port in the inverted position to avoid leakage.

REFERENCES:
patent: 2793794 (1957-05-01), Samuel
patent: 2904229 (1959-09-01), Sameul
patent: 5462209 (1995-10-01), Foster et al.
patent: 5738252 (1998-04-01), Dodd et al.

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