Method of manufacturing microvalves

Details Method of manufacturing microvalves Method of manufacturing microvalves

1990-05-23

1992-03-17

Woo, Jay H.

Plastic and nonmetallic article shaping or treating: processes

With printing or coating of workpiece

Anti-stick or adhesion preventing coating

137 15, 1376253, 164 47, 164 72, 264242, 264255, 264264, 264317, 264338, B29C 3910

Patent

active

050966430

ABSTRACT:
The plate-like valve elements (10 and 20) of the microvalve are provided with a plurality of valve seats and, respectively, corresponding valve members. The sealing surfaces of a secondary valve element (10) are respectively formed by molding to copy the sealing faces of a primary valve element (20) so that the sealing surfaces of both valve elements are completely complementary to each other. The sealing surfaces need no further processing such as machining. Despite liberal tolerances of manufacture a high precision register of the valve elements in relation to each other is ensured.

REFERENCES:
patent: 3016887 (1962-11-01), Clarke
patent: 3314644 (1967-04-01), Dwyer et al.
patent: 3394916 (1968-07-01), Birr
patent: 3616520 (1971-11-01), Bucalo
patent: 3723585 (1973-03-01), Nussbaum
patent: 4231982 (1980-11-01), Jansson
patent: 4604254 (1986-08-01), Yamamoto et al.
patent: 4777002 (1988-08-01), Putz
patent: 4871623 (1989-10-01), Hoopman et al.
patent: 4917846 (1990-04-01), Takasa et al.

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