Elastomeric element valve

US6102071A · kind A · utility

Assignee

• Fisher Controls International LLC · US

Inventors

• Herbert H. Walton · Marshalltown, US
• Douglas C. Pfantz · Melbourne, US
• Gary L. Scott · Richmond, US
• William J. Bonzer · Marshalltown, US
• James Lyman Griffin, Jr. · McKinney, US
• Bernard Cornu · Mâcon, FR
• Donald K. Day · Marshalltown, US
• Paul Adams · Marshalltown, US

Key dates

• Filing date: Apr 7, 1999
• Grant date: Aug 15, 2000
• Expiry date: Apr 7, 2019

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T137/8275
• WIPO field: Control
• WIPO sector: Instruments

Abstract

A fluid control valve having a valve body, a cage, and a flexible elastomeric diaphragm with a formed convolution to fully open the cage opening. An elastomeric diaphragm regulator with a flow diverter in the fluid flow path to reduce fluid flow separation and thereby reduce the required flow recovery area before pressure throttling. A raised knife edge seat located on the cage top in a position of stagnant fluid flow to reduce the build-up of contaminants on the seat. An elastomeric diaphragm regulator with a valve actuator coupled to a guided valve stem attached to the regulator diaphragm.