Drilling choke valve

Details Drilling choke valve Drilling choke valve

1983-04-04

1985-07-30

Rosenthal, Arnold

Fluid handling

Systems

Multi-way valve unit

251191, 251210, F16K 4704

Patent

active

045315450

ABSTRACT:
A multiposition choke valve assembly comprises:

REFERENCES:
patent: 1588645 (1926-06-01), Barrett
patent: 1833629 (1931-11-01), Yarnall
patent: 2676781 (1954-04-01), Hobbs
patent: 2830620 (1958-04-01), Shuptrine
patent: 3211419 (1965-10-01), Klinger-Lohr
patent: 4134572 (1979-01-01), Schmidt
patent: 4226263 (1980-10-01), Muchow
patent: 4355784 (1982-10-01), Cain
Valves Concepts International Catalog 829-entitled Chokes & Valves.
European Patent, (Application No. PCT/US 84/00479), International Search _Report.

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