Plastic pipe elements and methods for making same

Details Plastic pipe elements and methods for making same Plastic pipe elements and methods for making same

1984-03-12

1985-04-30

Wityshyn, Michael

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156213, 156215, 156258, 156294, 1563042, 1563043, 1563045, 1563046, 1563071, 285 55, 285156, 285177, 285179, 285398, 285405, B29C 2714, F16L 4702

Patent

active

045142440

ABSTRACT:
A plastic pipe element comprises an inner one-piece liner of thermoplastic material. The liner is formed so as to include at least one cylindrical leg having a free outer end and inner end disposed intermediate opposite ends of the liner. At least one pipe section is formed comprising an inner thermoplastic lining and a fiber reinforced outer layer. That pipe section is bonded to an outer surface of the cylindrical leg such that an inner end edge of the pipe section overlies the liner. A sheet of fiber reinforced thermosetting resin molding compound is applied externally around the inner end edge of the pipe section and is subjected to pressure and heat to form the sheet into a desired shape. Thereafter, the sheet is allowed to harden. Elements formed in this manner include a T-fitting, a pipe flange, a 90.degree. fitting, a reducer fitting, a 45.degree. fitting, and a pipe cap.

REFERENCES:
patent: 2878038 (1959-03-01), Noland
patent: 3002871 (1961-10-01), Tramm et al.
patent: 3540223 (1970-11-01), Ebbe
patent: 3561795 (1971-02-01), Becher
patent: 3666586 (1972-05-01), Lacey
patent: 3873391 (1975-03-01), Planka et al.
patent: 3975039 (1976-08-01), Penneck et al.
patent: 4043857 (1977-08-01), Byrne et al.
patent: 4257630 (1981-03-01), Bartell et al.
patent: 4430285 (1984-02-01), Runyan et al.

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