Fluid handling – With repair – tapping – assembly – or disassembly means – Assembling – disassembling – or removing cartridge type valve
Patent
1996-02-27
1997-08-05
Walton, George L.
Fluid handling
With repair, tapping, assembly, or disassembly means
Assembling, disassembling, or removing cartridge type valve
137212, 137322, 2224007, F16K 4300, B65D 8370
Patent
active
056532539
ABSTRACT:
In a double valve (4) for transportable containers (1) for distribution a liquid under pressure of a gas, a safety arrangement is adapted for preventing a person, who tries to dismount a valve while there is an over-pressure in the container, to be injured. The double valve has a housing (5a,5b) for detachable fixing the valve in a vertically mounted neck ring (2) in the container. In the housing a displaceable riser pipe (8), acted on by a pressure spring (10), is mounted having an elastomere valve ring (9) partly for closing a gas passage between the housing and the valve ring, partly a liquid passage between the opening in this and a valve plug (13) loaded by a second pressure spring in the riser pipe. Furthermore in the housing under the neck ring there is a catch (17) with a vertically, downwardly converging wedge (19) the narrow edge (21) of which is tiltingly supported by the lower edge (27) of a window (15) in the wall of the housing (5b). The catch comprises a spring (24) which is leaning against the inner side of the wall with an elastic force urging the wider edge (20) of the wedge to protrude through the window. The double valve can without any risk be dismounted by means of a special spanner (31) and a de-activation rod (32). The safety arrangement has a simple construction and is very reliable.
REFERENCES:
patent: 4388945 (1983-06-01), Johnson et al.
patent: 4411287 (1983-10-01), Hyde
patent: 4541658 (1985-09-01), Bartholomew
patent: 4566482 (1986-01-01), Stunkard
patent: 4728010 (1988-03-01), Johnston
patent: 5054743 (1991-10-01), Norkey et al.
patent: 5069424 (1991-12-01), Dennany, Jr. et al.
patent: 5242092 (1993-09-01), Riis et al.
Micro Matic A/S
Walton George L.
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