Device enabling a spray valve to be used in any position

Details Device enabling a spray valve to be used in any position Device enabling a spray valve to be used in any position

1989-02-27

1990-10-30

Skaggs, H. Grant

Dispensing

With discharge assistant

Fluid pressure

2224021, B65D 8314

Patent

active

049663135

ABSTRACT:
A device for enabling an aerosol valve designed to be crimped in the neck of a can to operate both upsidedown and the rightway up, the device being designed to be placed between the inlet end fitting of the valve and a dip tube, and comprising two chambers (11, 12) in series and aligned on the axis of the valve. The chambers are interconnected by a channel (13) having an opening into each of said chambers, and also being in communication with the suction zone (17) of the valve. Each chamber includes a gravity-operated non-return valve member for engaging the corresponding channel opening, with each non-return valve member occupying a closed position when the corresponding channel opening is in the bottom of the corresponding chamber. The chamber which is closer to the valve (1) is also in communication with a zone (18) outside the valve and close to the valve via the end of the chamber which is opposite to its channel opening. The chamber (12) which is further from the valve (1) is also in communication with said dip tube (3) via its end which is opposite to its channel opening. The device is constituted by three generally tubular parts mounted concentrically, namely: an outer sleeve (12) suitable for receiving the valve body; a tubular part (4) for engaging on the inlet end fitting of the valve; and a central bush (5) including the channel (13) and defining said chambers in conjunction with the tubular part.

REFERENCES:
patent: 3447551 (1969-06-01), Braun
patent: 4277001 (1981-07-01), Nozawa
patent: 4775079 (1988-10-01), Grothoff
patent: 4776498 (1988-10-01), Maerte et al.

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