Method of fabricating a pinch valve

Details Method of fabricating a pinch valve Method of fabricating a pinch valve

1990-04-26

1991-01-15

Silbaugh, Jan H.

Plastic and nonmetallic article shaping or treating: processes

With printing or coating of workpiece

Coating or impregnating workpiece before molding or shaping...

264262, 264263, 264265, 264269, 425123, 4251291, B29C 4514, B29C 3516

Patent

active

049851918

ABSTRACT:
A pinch valve is fabricated by providing an elongated tubular housing with a cut-back portion at an outlet end, applying adhesive to the cut back portion, with a ring around the cut-back portion, placing the housing and ring in a mold and heating all three, providing a core rod inside the housing and forcing an elastomer into the space between the core rod and the housing and between the housing and the ring, curing the elastomer and cooling everything to allow the ring to thermally contract to engage the elastomer between the housing and the ring.

REFERENCES:
patent: 1043451 (1912-11-01), Mosher
patent: 2451046 (1948-10-01), Rembert
patent: 3470289 (1969-09-01), Katsuki et al.
patent: 3982723 (1976-09-01), Ford et al.
patent: 4268005 (1981-05-01), Raftis et al.
patent: 4664284 (1987-05-01), Magerle
patent: 4695420 (1987-09-01), Grawey et al.

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