Oil field choke apparatus

Details Oil field choke apparatus Oil field choke apparatus

1992-06-08

1993-09-07

Walton, George L.

Fluid handling

With repair, tapping, assembly, or disassembly means

Assembling, disassembling, or removing cartridge type valve

137312, 166 91, 285 92, 285924, F16K 3502, F16K 5100

Patent

active

052419800

ABSTRACT:
An improved choke valve apparatus for use in controlling oil well flow for example includes an improved interlock system for warning of a pressurized condition within the valve prior to removal of the valve wing nut member. The safety bleeder plug assembly includes a plug body threadably attached to an opening in the choke body. A pair of spaced apart spring loaded washers interfaces the bleeder plug body and the choke body to several hundred pounds per square inch of pressure so that inadvertent removal of the plug body and body is prevented.

REFERENCES:
patent: 2943869 (1960-07-01), Nordin
patent: 3331396 (1967-07-01), Willis
patent: 3426797 (1969-02-01), Baker
patent: 4337788 (1982-07-01), Seger
patent: 4921281 (1990-05-01), Taylor
patent: 4926898 (1990-05-01), Sampey
patent: 5065787 (1991-11-01), Lochmann
Willis Division of Smith International, Inc. brochure on 2" through 6" Multiple Orifice Valves.

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