Title:
【発明の名称】可変オリフィス装置
Document Type and Number:
Japanese Patent JPH06503635
Kind Code:
A
Abstract:
A variable orifice device for passing fluent material under pressure includes a piece of resilient material bent out of its normal shape so that one surface is in tensile stressed condition and the other surface is in compressive stressed condition. A slit extends between the two surfaces. Because of the difference in the stressed conditions of the two surfaces, one end of the slit is open and the other end, at the compressively stressed surface, is in forced closed condition. The piece of resilient material is mounted in its bent, stressed condition in a frame which holds the material in the bent condition. The piece of resilient material may be cut from silicone rubber tubing such as is used for peristaltic pumps. The frame may be two annular members, one of which is a push fit in the other, with the other having an annular shoulder against which a disc of the resilient material is trapped and sealed by the one annular member.
Inventors:
Robert A. Nogel
Stoneham, Philip Edward
Tiny, John Riddler
Stoneham, Philip Edward
Tiny, John Riddler
Application Number:
JP50319791A
Publication Date:
April 21, 1994
Filing Date:
December 13, 1991
Export Citation:
Assignee:
Eastman Kodak Company
International Classes:
F16K15/14; F16K47/14; F16L29/00; (IPC1-7): F16K47/14; F16K15/14; F16L29/00
Attorney, Agent or Firm:
Kyozo Yuasa (6 people outside)