公开(公告)号：CA2169826A1

公开(公告)日：1995-03-30

申请号：CA2169826

申请日：1994-08-18

Applicant: ROSEMOUNT ANALYTICAL INC

Inventor： NELSON CYNTHIA R ,  SITTLER FRED C ,  BOSER GREGORY A

IPC: G01N30/16 ,  F15C5/00 ,  F16K99/00 ,  F15C3/04

Abstract: A valve controlling fluid flow includes a brittle layer of material having a port opening therein and a valve seat disposed about a perimeter of the port opening. The valve seat is selectively covered to control fluid flow through the port opening. A second layer of material is spaced apart from the brittle layer and has a surface facing the valve seat. A flexible sheet of material sandwiched between the brittle layer of material and the second layer of material includes a diaphragm actuated by a control force to selectively cover the valve seat to thereby control fluid flow through the port opening. The flexible sheet of material includes a moldable material a portion of which conforms to a contour of the valve seat. The moldable material is preferably joined to a flexible organic material.

公开(公告)号：WO9508716A3

公开(公告)日：1995-05-11

申请号：PCT/US9409319

申请日：1994-08-18

Applicant: ROSEMOUNT ANALYTICAL INC

Inventor： NELSON CYNTHIA R ,  SITTLER FRED C ,  BOSER GREGORY A

IPC: G01N30/16 ,  F15C5/00 ,  F16K99/00

CPC classification number: F16K99/0001 ,  F15C5/00 ,  F16K99/0005 ,  F16K99/0015 ,  F16K99/0059 ,  F16K2099/0074 ,  F16K2099/0076 ,  F16K2099/0078 ,  F16K2099/0084

Abstract: A valve controlling fluid flow includes a brittle layer (12) of material having a port opening (30, 32) therein and a valve seat (24A-24F) disposed about a perimeter of the port opening (30, 32). The valve seat (24A-24F) is selectively covered to control fluid flow through the port opening (30, 32). A second layer of material (20) is spaced apart from the brittle layer (12) and has a surface facing the valve seat (24A-24F). A flexible sheet of material (18) sandwiched between the brittle layer of material (12) and the second layer of material (20) includes a diaphragm (22A-22F) actuated by a control force to selectively cover the valve seat (24A-24F) to thereby control fluid flow through the port opening (30, 32). The flexible sheet of material (18) includes a moldable material (64) a portion of which conforms to a contour of the valve seat (24A-24F). The moldable material (64) is preferably joined to a flexible organic material (66).