Choke and improved needle tip therefor

Fluid handling – With repair – tapping – assembly – or disassembly means – Assembling – disassembling – or removing cartridge type valve

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Details

251122, 251333, 251357, 251368, 166 91, F16K 4300, F16K 5100

Patent

active

047050624

ABSTRACT:
The improved choke includes a body with an internal valve chamber, an inlet and an outlet communicating through the body into the valve chamber, a valve seat surrounding the opening of the outlet into the valve chamber, and a valve member mounted within said body to move toward and away from said valve seat to control flow therethrough, means for moving the valve member in said body, the valve member having a stem and a replaceable, wear-resistant tip which is provided with a sleeve insert secured within the stem opening and having internal threads which mate with external threads on the end of the stem, the tip recess includes a groove into which a portion of the sleeve insert is swaged to secure it tightly into the tip.

REFERENCES:
patent: 852644 (1907-05-01), Bacon
patent: 1696876 (1928-12-01), Bacon
patent: 2014314 (1935-09-01), Defenbaugh
patent: 2091874 (1937-08-01), Neuhaus
patent: 2194961 (1940-03-01), Walker
patent: 2285343 (1942-06-01), Marchand, Jr. et al.
patent: 3262673 (1966-07-01), Seeley
patent: 3462121 (1969-08-01), Smull
patent: 3815873 (1974-06-01), Hendrich
patent: 4337788 (1982-07-01), Seger
patent: 4337920 (1982-07-01), Parris

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