Browse Prior Art Database

DIAPHRAGM RELIEF VALVE

IP.com Disclosure Number: IPCOM000025121D
Original Publication Date: 1983-Oct-31
Included in the Prior Art Database: 2004-Apr-04
Document File: 2 page(s) / 59K

Publishing Venue

Xerox Disclosure Journal

Abstract

Present air system relief valves require at least two moving parts, namely, a valve plate and a hinge plate for the valve plate. The pressure controlling component of the valve can be a spring which would be considered a third moving part. The spring would also require a spring mount. In some instances, an alternative pressure controlling component of the valve would be a predetermined amount of weight attached to the valve plate.

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XEROX DISCLOSURE JOURNAL

DIAPHRAGM RELIEF VALVE David M. Montes

Proposed Classification
U.S. C1. 137/802 Int. C1. E03b 21/00

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/6 00000

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J'O

/5 FIG. 2

Present air system relief valves require at least two moving parts, namely, a valve plate and a hinge plate for the valve plate. The pressure controlling component of the valve can be a spring which would be considered a third moving part. The spring would also require a spring mount. In some instances, an alternative pressure controlling component of the valve would be a predetermined amount of weight attached to the valve plate.

Volume 8 Number 5 September/October 1983 381

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DIAPHRAGM RELIEF VALVE (Cont'd)

An improved air system relief valve 10 is shown in Figures 1 and 2 that is functional for both vacuum and pressure conditions respectively. The valve comprises a diaphragm 15 made of low modulus elastic material. The diaphragm has slits or perforations in it with the perforations being closed at low or negative pressure as shown in Figure I. At high pressure, as shown in Figure 2, the diaphragm expands the slits or perforations open and enlarges their size. As they enlarge, more air will pass through the openings thereby limiting the pressure.

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    XEROX DISCLOSURE JOURNAL Volume 8 Number 5 September/October 1983

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