Fluid handling – Processes – Cleaning – repairing – or assembling
Patent
1996-03-29
1997-11-04
Michalsky, Gerald A.
Fluid handling
Processes
Cleaning, repairing, or assembling
137202, 137800, F16K 2404
Patent
active
056829175
ABSTRACT:
An overflow and isolation valve is disclosed. The overflow and isolation valve includes a valve body having a chamber defined therein, and an integral leg member formed as part of the valve body having a proximal end on the valve body and a distal end extending away therefrom. A bore is defined within the leg member extending from the distal end to the proximal end thereof, and is in generally fluid-tight communication with the chamber formed within the valve body. An integral float assembly is provided as a part of the valve for sealing the distal end of the leg member in response to the liquid level within the tank. A threaded annular ring is formed within the bore of the leg member intermediate the proximal and distal ends thereof, and faces inwardly of the bore for receiving a threaded plug thereon, the threaded plug being passed through a vapor recovery system riser opening defined in the valve body in substantial registry with the bore of the leg member so that the plug forms a fluid-tight and pressure-tight seal between the leg member and the chamber within the valve body without having to first remove the float assembly.
REFERENCES:
patent: 2504474 (1950-04-01), Van Oss
patent: 2767552 (1956-10-01), Clute
patent: 3563263 (1971-02-01), Benson
patent: 3736950 (1973-06-01), Smallwood
patent: 4036255 (1977-07-01), Wilson
patent: 4094346 (1978-06-01), Mild
patent: 4535799 (1985-08-01), Boley
patent: 5435335 (1995-07-01), Klop
patent: 5443561 (1995-08-01), Sakata et al.
Overfill Prevention Valve Sales Literature; Copyright 1992.
Fails Charles H.
Michalsky Gerald A.
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