Fitting and methods for making the same

Details Fitting and methods for making the same Fitting and methods for making the same

1975-05-12

1977-09-13

Hunter, H. Hampton

Pipe joints or couplings

With assembly means or feature

Molded joint facilitator

285111, 285369, 285379, 285423, F16L 1302

Patent

active

040477398

ABSTRACT:
A unitary fitting for fluid piping systems. A body has a socket member, and a hub member fits in the socket member. The members define the bottom and sides of a ring groove, and a resilient sealing ring fits in the groove. Each of the members has a wall which is adapted to be brought into abutment with the other, and a structural joinder joins the walls. A preferred means to form the structural joinder is to rotate the hub member in the socket member while the walls are in abutment, whereby the frictional forces will generate sufficient heat to cause the walls to fuse together, especially when they are formed of a thermoplastic plastic material, such as polyvinyl chloride.

REFERENCES:
patent: 2933428 (1960-04-01), Muellen
patent: 2983639 (1961-05-01), Jageman
patent: 3117903 (1964-01-01), Hix
patent: 3226807 (1966-01-01), Orr
patent: 3260540 (1966-01-01), Houot
patent: 3265410 (1966-08-01), Lorang
patent: 3438824 (1969-04-01), Balamuth

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