Browse Prior Art Database

BELLOWS OPERATED RELIEF VALVE

IP.com Disclosure Number: IPCOM000025165D
Original Publication Date: 1983-Dec-31
Included in the Prior Art Database: 2004-Apr-04
Document File: 2 page(s) / 45K

Publishing Venue

Xerox Disclosure Journal

Abstract

Vacuum corrugation feeders use relief valves to balance and control air flow. A relief valve 10 for use in such feeders is shown in the figure that includes a bellows 12. Bellows are common devices which expand or contract at a precise preset rate in response to changes in pressure. As shown in the figure, high pressure in the direction of arrow 20 causes the bellows 12 to contract and make sealing plate 13 open the valve to allow air to flow into the low pressure area.

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XEROX DISCLOSURE JOURNAL

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BELLOWS OPERATED RELIEF VALVE David Eisler U.S. C1. 271/98 Frank R. Hynes

Proposed Classification

Int. C1: R65h 3/14

FLOW

r;CLOSED

  HIGH PRESSURE AREA

3LOW
.PRESSURE

AREA

Vacuum corrugation feeders use relief valves to balance and control air flow. A relief valve 10 for use in such feeders is shown in the figure that includes a bellows
12. Bellows are common devices which expand or contract at a precise preset rate in response to changes in pressure. As shown in the figure, high pressure in the direction of arrow 20 causes the bellows 12 to contract and make sealing plate 13 open the valve to allow air to flow into the low pressure area.

Volume 8 Number 6 November/December 1983 475

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476

    XEROX DISCLOSURE JOURNAL Volume 8 Number 6 November/December 1983

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