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Browse Prior Art Database

SOLID ONE-PIECE MEMBRANE VALVE

IP.com Disclosure Number: IPCOM000025166D
Original Publication Date: 1983-Dec-31
Included in the Prior Art Database: 2004-Apr-04
Document File: 2 page(s) / 47K

Publishing Venue

Xerox Disclosure Journal

Abstract

Relief valves are used in vacuum corrugation feeders to balance and control air flow. A relief valve 20 for use in such feeders is shown in the figure and includes a solid one-piece membrane 21 made of thin stretchable rubber. The membrane is stretched over a vent as shown. A pressure difference across the membrane causes it to stretch which opens a path 30 through which air flows. The valve is a simple, reliable and low cost means of controlling air since only one piece of membrane material is needed and the material is not weakened by internal slits or holes.

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XEROX DISCLOSURE JOURNAL

SOLID ONE-PIECE MEMBRANE VALVE Proposed David Eisler U.S. C1. 271/98 Classification

Int. C1. B65h 3/14

Relief valves are used in vacuum corrugation feeders to balance and control air flow. A relief valve 20 for use in such feeders is shown in the figure and includes a solid one-piece membrane 21 made of thin stretchable rubber. The membrane is stretched over a vent as shown. A pressure difference across the membrane causes it to stretch which opens a path 30 through which air flows. The valve is a simple, reliable and low cost means of controlling air since only one piece of membrane material is needed and the material is not weakened by internal slits or holes.

Volume 8 Number 6 November/December 1983 477

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478 XEROX DISCLOSURE JOURNAL

Volume 8 Number 6 November/December 1983

[This page contains 1 picture or other non-text object]