Sealing member for use in well shafts

Details Sealing member for use in well shafts Sealing member for use in well shafts

1979-08-27

1981-05-19

Ward, Jr., Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 29, 277226, 166187, F16J 1548

Patent

active

042680433

ABSTRACT:
A sealing member for use in well shafts. The sealing member comprises a hose which is mounted over a tube sleeve and is sealed at its ends relative thereto. At least one pipe carrying pressurized water passes through the sleeve.
The pressurized water pipe is connected with a space between the sleeve and the hose, and the connection means includes a valve arranged to allow water to flow from the pressurized water pipe to the space but not in the opposite direction. Through this arrangement the pressurized water inside the space between the hose and the sleeve keeps the hose in sealing engagement against the wall of the well shaft.

REFERENCES:
patent: 1549168 (1925-08-01), Townsend
patent: 2133730 (1938-10-01), Brundred
patent: 2342884 (1944-02-01), Moore
patent: 2564198 (1951-08-01), Elkins
patent: 2845130 (1958-07-01), Austin
patent: 3173486 (1965-03-01), Smith
patent: 3926254 (1975-12-01), Evans et al.
patent: 4082298 (1978-04-01), Sanford

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