Shut-off apparatus

Details Shut-off apparatus Shut-off apparatus

1984-12-10

1986-05-06

Walton, G. L.

Valves and valve actuation

Fluid actuated or retarded

Plural operations

251 58, 251252, 251308, 74 25, 74 57, 74 89, F16K 31122, F16K 31524

Patent

active

045866937

ABSTRACT:
The apparatus comprises a disk shaped shut-off flap located in the passage of a main body. The shut-off flap is mounted such to a rocking shaft that the flap can be lifted off its seat during one phase of movement of the rocking shaft and may be rotated into an open position during a further phase of movement of the rocking shaft. The operating means comprises a linear drive in the shape of a control rod including a control groove. A follower and driving means engages the control groove and the shut-off flap. Accordingly the shut-off flap is guided for above lift off and rotating movements. This linear drive allows an impeccable sealing between the inner space of the shut-off apparatus and the environment.

REFERENCES:
patent: 2315775 (1943-04-01), D'Arcey
patent: 2910266 (1959-10-01), Condello et al.
patent: 3492880 (1970-02-01), Pearson
patent: 4120479 (1978-10-01), Thompson et al.
patent: 4241897 (1980-12-01), Maezawa
patent: 4253640 (1981-03-01), Priese et al.
patent: 4293117 (1981-10-01), Mueller
patent: 4350322 (1982-09-01), Mueller
patent: 4436280 (1984-03-01), Geisow

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