Flexible and extendible pipe section

Details Flexible and extendible pipe section Flexible and extendible pipe section

1991-01-28

1991-10-22

Nicholson, Eric K.

Pipe joints or couplings

Flexible joint, rigid members

Bellows

285292, 138121, F16L 1111

Patent

active

050589342

ABSTRACT:
A flexible and extendible pipe fitting for plastic pipe comprises a tubular bellows capable of being axially expanded and contracted and an inner lining for laminar fluid flow, where the lining is completely sealed in a fluid impervious manner to the interior ends of the fitting. Rigid hollow conduit end members are attached to opposite axial ends of the tubular bellows for sealably joining with two other pipe sections. An outer sleeve which generally conforms to the manipulation of the bellows is filled with settable material to permanently fix the pipe section in place once the desired configuration has been achieved.

REFERENCES:
patent: R27906 (1974-01-01), Toepper
patent: 1565254 (1925-12-01), Bystrom
patent: 2666657 (1954-01-01), Howard
patent: 2934095 (1960-04-01), Lockhart
patent: 3330303 (1967-07-01), Fognler
patent: 3420553 (1969-01-01), Poxon
patent: 3989281 (1976-11-01), Wilde, Jr.
patent: 4037626 (1977-07-01), Roberts
patent: 4312383 (1982-01-01), Kleykamp
patent: 4627212 (1986-12-01), Yee
patent: 4754781 (1988-07-01), Jan De Putter

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