Invertible dispensing means for spray containers

Details Invertible dispensing means for spray containers Invertible dispensing means for spray containers

1999-04-02

2000-08-15

Shaver, Kevin

Dispensing

With discharge assistant

With movable nozzle interconnected therewith

222376, 222382, 2223831, 2224641, B65D 8300

Patent

active

061022551

ABSTRACT:
A hand pump for a spray bottle permits upright or inverted operation while eliminating the need for a check valve or valves. An annular gap in the entrance section of the hand pump is so proportioned that when wet it will have the property to permit flow of liquid from the container to the dispenser, and to prevent flow of gas from the container to the dispenser. The entrance section has an axial slot therethrough and an axial groove in communication with the interior of the container and with the dispenser--the gap may be formed by a pair of circumferentially spacers. When the container is upright liquid can be removed through a distal end of a feed tube supported on the entrance section. When the container is inverted with the distal end out of the liquid and the entrance section submerged in the liquid, the liquid can be removed from the container through the axial slot, the axial groove and the annular gap.

REFERENCES:
patent: 3773013 (1973-11-01), Parker, Sr.
patent: 4272257 (1981-06-01), Ellion et al.
patent: 4398654 (1983-08-01), Pong et al.
patent: 4418846 (1983-12-01), Pong et al.
patent: 4775079 (1988-10-01), Grothoff
patent: 5353969 (1994-10-01), Balderrama
patent: 5467901 (1995-11-01), Foster et al.
patent: 5624060 (1997-04-01), Ellion et al.
patent: 5779108 (1998-07-01), Barriac et al.
patent: 5875933 (1999-03-01), Ellion et al.
patent: 5899366 (1999-05-01), Ellion
patent: 5988454 (1999-11-01), Ellion

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