Rolling seal sluice gate

Details Rolling seal sluice gate Rolling seal sluice gate

1982-08-09

1984-11-27

Chambers, A. Michael

Valves and valve actuation

Flexible actuator

251147, 251230, 251356, 251DIG2, 405 98, F16K 3100

Patent

active

044847289

ABSTRACT:
A sluice gate including a closure member comprising a sheet of flexible fabric reinforced polymeric material having pairs of reinforcing members extending horizontally across the sheet with one member of each pair located on the upstream side and the other on the downstream side of the sheet in use. The pairs of members are secured together with the flexible sheet between them and at least some of the members on the upstream side extend beyond the side edges of the sluice opening to be controlled and those on the downstream side are able to pass into the sluice opening. The sluice gate includes control means for drawing the lower end of the closure member upwardly and away from the opening to progressively open it and to allow the closure member to return progressively to the closed position.

REFERENCES:
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patent: 846170 (1907-03-01), Weeks
patent: 887451 (1908-03-01), Blaisdell
patent: 1028640 (1912-06-01), Van Den Heuvel
patent: 1506622 (1923-11-01), Fintel
patent: 1533137 (1925-04-01), Pospisil
patent: 1556328 (1925-10-01), Hutchins
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patent: 3194269 (1965-07-01), Williams
patent: 3430677 (1969-03-01), Pierce
patent: 3907250 (1975-09-01), Kane
patent: 4252461 (1981-02-01), Culamussi et al.
patent: 4310262 (1982-01-01), Calza et al.

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