Valves and valve actuation – With means to increase head and seat contact pressure – Gate valve
Patent
1978-08-04
1980-12-09
Schwadron, Martin P.
Valves and valve actuation
With means to increase head and seat contact pressure
Gate valve
251 62, 251197, 251204, F16K 2500, F16K 3122
Patent
active
042381118
ABSTRACT:
A gate valve is provided for use in conjunction with vacuum equipment in which a gate assembly is opened and closed, for example, by a pneumatic cylinder. The gate assembly is enclosed in a valve housing, and aligned openings are provided in the opposite walls of the housing. The gate assembly is moved by the pneumatic cylinder between an open and closed position with respect to the openings. The gate assembly includes a gate which is mounted on a carriage, and the carriage is moved by the pneumatic cylinder between a first position in which the gate is open, and a second position in which the gate is closed. A feature of the gate valve of the invention is that when the gate is open, a smooth bore is provided through the valve aperture with electrical surface conductivity for short-circuiting stray radio frequency electric currents.
REFERENCES:
patent: 2653789 (1953-09-01), Eichenberg
patent: 2705610 (1955-04-01), Hjulian
patent: 2885172 (1959-05-01), Natho
patent: 3038692 (1962-06-01), Holmes
patent: 3266505 (1966-08-01), Kron
patent: 3368792 (1968-02-01), Schertler
patent: 3397862 (1968-08-01), Batzer et al.
patent: 3663362 (1972-05-01), Stix
patent: 3675072 (1972-07-01), Hohn et al.
patent: 3694313 (1972-09-01), Blue et al.
patent: 4052036 (1977-10-01), Schertler
patent: 4132239 (1979-01-01), Bowen et al.
patent: 4157169 (1979-06-01), Norman
Beecher Keith D.
Chambers A. Michael
Schwadron Martin P.
Torr Vacuum Products, Inc.
LandOfFree
Gate valve for use with vacuum equipment does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Gate valve for use with vacuum equipment, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Gate valve for use with vacuum equipment will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2277411