High temperature gas flow rate restrictor device

Details High temperature gas flow rate restrictor device High temperature gas flow rate restrictor device

1998-12-21

2000-09-05

Shaver, Kevin

Valves and valve actuation

Valve actuator is valve casing or extension thereof

Plural motions of valve

251341, 251351, F16K 3100

Patent

active

061130710

ABSTRACT:
A gas flow restriction device for restricting the flow rate of heated gas in a conduit. The flow restriction device is essentially a two piece assembly that includes a valve housing and a valve gate structure that sits within the housing. The valve housing has a first end, a second end and an open central passage extending from the first end to the second end. The open central passage includes a internally tapered section proximate its first end and an internally threaded section proximate its second end. The valve gate structure has a first end a second end, a externally tapered section proximate its first end and an externally threaded section proximate its second end. The valve gate structure passes into the open central passage of the valve housing so that the externally tapered section of the valve gate structure is disposed a predetermined distance within the internally tapered section of the valve housing. At this location, the externally threaded section of the valve gate structure engages the internally threaded section of the valve housing. By rotating the valve gate structure, the threaded interconnection is effected and the valve gate structure moves in relation to the valve housing.

REFERENCES:
patent: 2791236 (1957-05-01), Mauer
patent: 3318330 (1964-06-01), Dobbs
patent: 3601358 (1971-08-01), Cruse
patent: 3727638 (1973-04-01), Zaremba, Jr. et al.
patent: 4177949 (1979-12-01), Curtis et al.
patent: 5957147 (1999-09-01), Hubbell, Jr.

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