Valves and valve actuation – Reciprocating valve – Diaphragm
Patent
1997-06-16
2000-08-29
Lee, Kevin
Valves and valve actuation
Reciprocating valve
Diaphragm
251264, 425381, B29C 4708, F16K 712
Patent
active
061095923
ABSTRACT:
A flow control device is mounted within a channel of an extrusion die, wherein the channel is defined by a base surface and a side surface normal to the base surface. The device includes a main body and an auxiliary body, wherein the main body includes a side portion that sealingly contacts the side surface of the channel when a force is exerted on the side portion, and the auxiliary body is in contact with the base surface of the channel. The device further includes a flexible membrane on a face opposite the auxiliary body which can influence the flow of material through the channel by moving in a direction perpendicular to the direction of material flow. A sealing apparatus is used to prevent leakage of material between the die and the flexible membrane. The sealing apparatus includes a gasket disposed adjacent an end surface of the membrane and means for causing the gasket to apply a force against the end surface such that the gasket seals against the membrane.
REFERENCES:
patent: 3680997 (1972-08-01), Dukert et al.
patent: 3884611 (1975-05-01), Anderson et al.
patent: 4293517 (1981-10-01), Knox
patent: 4372739 (1983-02-01), Vetter et al.
patent: 4411614 (1983-10-01), Feathers
patent: 4521359 (1985-06-01), Tsien
patent: 4619802 (1986-10-01), Cloeren
patent: 4861536 (1989-08-01), Graf et al.
patent: 4892473 (1990-01-01), Elia et al.
patent: 4922192 (1990-05-01), Gross et al.
patent: 5066435 (1991-11-01), Lorenz et al.
patent: 5067432 (1991-11-01), Lippert
patent: 5149481 (1992-09-01), Gross et al.
patent: 5242742 (1993-09-01), Funk et al.
patent: 5273420 (1993-12-01), Gross et al.
patent: 5275547 (1994-01-01), Brown
patent: 5286436 (1994-02-01), Funk et al.
patent: 5494429 (1996-02-01), Wilson et al.
patent: 5516273 (1996-05-01), Delmore et al.
patent: 5529730 (1996-06-01), Gross
patent: 5542836 (1996-08-01), Gross et al.
patent: 5608637 (1997-03-01), Wang et al.
patent: 5770240 (1998-06-01), Krupa
PCT International Preliminary Examination Report, dated Jul. 9, 1999, International Application No. PCT/US98/12479.
PCT International Search Report dated Sep. 30, 1998, International Appl. No. PCT/US/98/12479.
Gross et al., "Membran Statt Staubalken, "Kunststoffe, vol. 84, No. 10 (Oct.1994), pp. 1352-1356.
PCT Written Opinion dated Mar 15, 1999, International Application No. PCT/US/12479.
Krupa Vernon J.
Lippert Harry G.
Ulcej John A.
Extrusion Dies, Inc.
Lee Kevin
LandOfFree
Flow control device and apparatus for mounting same does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Flow control device and apparatus for mounting same, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Flow control device and apparatus for mounting same will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1240785