Device providing an effective seal for a spherical rotary slide

Details Device providing an effective seal for a spherical rotary slide Device providing an effective seal for a spherical rotary slide

1983-06-07

1985-04-16

Ward, Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 27, 251171, 251172, 251175, F16K 506, F16K 520, F16J 1548

Patent

active

045111502

ABSTRACT:
A ball-type valve comprises a rotary valve member in a housing or valve body whose ducts communicating with the passage in the valve member are provided with respective sealing devices. These sealing devices comprise elastomeric formable rings received in blind recesses around the respective ducts and communicating therewith by orifices opening behind each deformable ring so that the fluid pressure in the respective duct under pressure will urge the deformable ring against the annular gasket and press the gasket against the rotary valve member.

REFERENCES:
patent: 2653004 (1953-09-01), Schnyder
patent: 2845247 (1958-07-01), Housekeeper et al.
patent: 2916254 (1959-12-01), Wendell
patent: 3556476 (1971-01-01), Haenky
patent: 3722859 (1973-03-01), Murphy
patent: 4286614 (1981-09-01), Kacal

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