Fluid handling – With repair – tapping – assembly – or disassembly means – Assembling – disassembling – or removing cartridge type valve
Patent
1990-09-10
1991-04-16
Walton, George L.
Fluid handling
With repair, tapping, assembly, or disassembly means
Assembling, disassembling, or removing cartridge type valve
137413, 137426, 137447, 137557, 13762547, 137887, 251286, 340625, 417 40, 417 41, F16K 4300, F16K 3132, F16K 3300
Patent
active
050074504
ABSTRACT:
An add-on liquid overflow shut-off valve including a valve body, a float and an arm connecting the float to the body that is insertable in fully assembled form through a standard tank lid opening, and further including a flanged end on the valve body for engagement outside and above the rim of the opening and threads associated therewith to engage the periphery of the opening to anchor the body inside the interior of the tank and at the top thereof, pneumatic openings formed in the top flanged end in spaced-apart relation for connection respectively to a pressurized pneumatic source and a pneumatic-driven liquid pump arranged to pump liquid into the tank through another opening in the tank, first and second pneumatic passageways formed interior the body extending from the openings, a third pneumatic passageway formed in the body for interconnecting the first and second passageways, and a shaft pivotally received in the body, having a fourth pneumatic passageway formed therethrough for pneumatic alignment with the third pneumatic passageway when the liquid is below a predetermined level in the drum, the shaft having one end thereof exiting the valve body for connection through an extended arm to a float for causing rotation of the shaft as a function of the level of liquid in the tank and to allow pneumatic power to drive the pump and continue to deliver liquid into the tank and then to rotate into a position shutting off the pneumatic power to the pump when the level of the liquid reaches the predetermined level.
REFERENCES:
patent: 559555 (1896-05-01), Williams
patent: 609544 (1898-08-01), Hipp
patent: 927368 (1990-07-01), Mauldin
patent: 968362 (1910-08-01), Keenan
patent: 1188535 (1916-06-01), Ellis
patent: 1427793 (1922-09-01), Emerson
patent: 1629545 (1927-05-01), Sherman et al.
patent: 2847025 (1958-08-01), Reitman
patent: 4612949 (1986-09-01), Henson
patent: 4637424 (1987-01-01), Morgan, III
patent: 4909274 (1990-03-01), Rodriguez
Babb Franklyn P.
Babb Matthew T.
Murphey John J.
Walton George L.
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