Process for producing sanitary fittings

Details Process for producing sanitary fittings Process for producing sanitary fittings

1995-12-18

1997-07-01

Ortiz, Angela

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

To produce composite, plural part or multilayered article

264250, 264267, 264273, B29C 4514, B29C 3342

Patent

active

056435215

ABSTRACT:
A fitting (1) designed for example as a non-return valve (2) has an outer housing (3) having an inner lip seal (7) interacting with a closing element (5), and also an outer annular seal (8). Both the outer housing (3) and the seals (7, 8) are designed as injection moldings. The production of the outer housing with the seals takes place in an injection molding process in which, first of all, the outer housing and, in a second operation, the seals are injection molded appropriate, more than two operations, in particular in the case of more than two injection molding material components, can also be provided. By means of the injection molded seals, the latter are durably and closely bonded to the outer housing (3) resulting in simplifications regarding production technology and design (FIG. 1).

REFERENCES:
patent: 4038359 (1977-07-01), Pendleton
patent: 4297313 (1981-10-01), Duckstein
patent: 4338278 (1982-07-01), Schultz
patent: 4342799 (1982-08-01), Schowchert
patent: 4410479 (1983-10-01), Cyriax
patent: 4518554 (1985-05-01), Hatakeyama et al.
patent: 4732724 (1988-03-01), Sterner
patent: 4842540 (1989-06-01), Endo et al.
patent: 4903997 (1990-02-01), Kifer
patent: 4988472 (1991-01-01), Orimoto
patent: 5401453 (1995-03-01), Moretz et al.

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