[특허]Bi-directional pressure relief valve

[미국특허] Bi-directional pressure relief valve 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F16K-017/18
출원번호	US-0380971 (1982-05-24)
발명자 / 주소	Atkinson Gordon E. (Yellow Springs OH)
출원인 / 주소	Vernay Laboratories, Inc. (Yellow Springs OH 02)
인용정보	피인용 횟수 : 119 인용 특허 : 2

초록 ▼

A bi-directional pressure relief valve includes a cylindrical main body portion defining a flow path through the valve and terminating in an asymmetrical lip portion having a curved contour about an axis of curvature extending perpendicularly to the flow path and a linear contour which is substantially normal to the curved contour. The lip portion has a normally closed slit formed through it and expands to open the slit to permit flow in one direction in response to pressure differentials across the lip portion above a first pressure differential, regains its undeformed shape to close the slit and check flow at pressure differentials below the first differential and above a second pressure differential, and collapses in a predictable and repeatable manner to open the slit to permit flow in an opposite direction at pressure differentials below the second pressure differential. A preferred embodiment includes an annular flange formed about the lip portion which facilitates the mounting of the valve in a conduit. If desired, the pressures at which flow can occur through the valve may be increased by providing the valve with stiffening ribs projecting radially outwardly of the main body portion.

대표청구항 ▼

A bi-directional pressure relief valve comprising: a substantially cylindrical main body portion having a central longitudinal axis and defining a flow path through said valve; said cylindrical main body portion terminating at one end thereof in a lip portion; said lip portion having a curved contour about an axis of curvature extending substantially perpendicularly to and intersecting said central longitudinal axis; said lip portion having a linear contour perpendicular to said central longitudinal axis such that said lip portion is radially asymmetrical about said central longitudinal axis; at least one normally closed slit formed in said lip portion; and said main body and lip portions being formed of elastomeric material such that said slit opens to permit flow through said lip portion in a forward direction at or above a first predetermined pressure level, closes to check flow through said lip portion at pressures between said first pressure level and a second predetermined pressure level, and said lip portion collapses, thereby opening said slit and permitting reverse flow through said lip portion at reverse flow pressures greater than said second pressure level.

이 특허에 인용된 특허 (2) 인용/피인용 타임라인 분석

Atkinson Gordon E. (Yellow Springs OH), Combination check-overpressure relief valve.
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Mitchell Clarence I. (Xenia OH), Two-way check valve.
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이 특허를 인용한 특허 (119) 인용/피인용 타임라인 분석

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[미국특허] Bi-directional pressure relief valve 원문보기

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[미국특허] Bi-directional pressure relief valve 원문보기

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