[특허]Wear ring retainer for a gate valve

Wear ring retainer for a gate valve 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F16K-003/30 F16K-001/42 F16K-003/02 F16K-003/20
출원번호	US-0908662 (2013-06-03)
등록번호	US-9121514 (2015-09-01)
발명자 / 주소	Blenkush, Robert A. Watterodt, Sidney
출원인 / 주소	DeZURIK, Inc.
대리인 / 주소	Pauly, Devries, Smith & Deffner, LLC
인용정보	피인용 횟수 : 0 인용 특허 : 113

초록

Gate valves having removable interior wear rings that are easily removed from one side of the gate valve upon removal of a retainer ring. The retainer ring is held in place within the valve housing by combination of compressive and shear forces.

대표청구항 ▼

1. A gate valve, the gate valve comprising: a valve housing comprising a first opening, a second opening and an interior, wherein a gate is configured to move into and out of the interior of the valve housing so as to substantially prevent a flow of liquids through the valve housing when the gate is inserted into the interior of the valve housing;first and second wear rings inserted within the valve housing, the wear rings positioned on either side of the path of the gate so as to partially line the interior of the valve housing; anda retaining ring for securing the first wear ring in the valve housing, the retaining ring configured for extending around at least a portion of the first opening of the valve; the retainer ring comprising a front surface configured to face the exterior of the valve, a back surface configured to face the interior of the valve, an inner surface along the interior circumference of the retaining ring, and an outer surface along the exterior circumference of the retaining ring;wherein the outer surface of the retaining ring is configured to contact the housing of the valve such that the retaining ring applies compressive and shear loads to the housing. 2. The gate valve of claim 1, wherein the front surface of the retaining ring has a smaller surface area than the back surface of the retaining ring. 3. The gate valve of claim 1, wherein the front surface of the retaining ring has a smaller outside diameter than outside diameter of the back surface of the retainer ring. 4. The gate valve of claim 1, wherein the front surface of the retaining ring has an outside diameter that is substantially equal to the outside diameter of the back surface of the retainer ring. 5. The gate valve of claim 1, wherein the outer surface along the exterior circumference of the retaining ring is inclined relative to the primary axis of flow of fluids through the interior of the valve. 6. The gate valve of claim 1, wherein the first wear ring is held between the retaining ring and a first side of the gate. 7. The gate valve of claim 1, wherein the second wear ring is held between a flange in the housing of the gate valve and a second side of the gate. 8. The gate valve of claim 1, wherein the first wear ring is removable from the interior of the valve housing by withdrawing the gate, pushing the wear ring into the gate path, removing the retainer ring, and then withdrawing the wear ring through the first opening in the valve housing. 9. The gate valve of claim 8, wherein the second wear ring is removable from the interior of the valve housing by withdrawing the second wear ring through the first opening in the valve housing after the first wear ring has been removed. 10. The gate valve of claim 1, wherein the retainer ring is formed in at least two parts: a primary part forming at least 180 degrees of a circle, and a keystone piece forming less than 180 degrees of a circle. 11. The gate valve of claim 1, wherein the retainer ring is substantially flush with the first opening of the valve housing. 12. The gate valve of claim 1, wherein exposed portions of the second wear ring are substantially flush with the first opening of the valve housing. 13. The gate valve of claim 1, wherein the retainer ring is held in place substantially without screws. 14. A gate valve, the gate valve comprising: a valve housing comprising a first opening, a second opening, and a gate, wherein the gate is configured to move into and out of an interior of the valve housing so as to substantially prevent a flow of liquids through the valve housing when the gate is inserted into the interior of the valve housing;first and second wear rings inserted within the valve housing, the wear rings positioned on either side of the path of gate; anda retaining ring for securing the first wear ring in the valve housing, the retaining ring configured for extending around at least a portion of the first opening of the valve; wherein the retaining ring comprises; a front surface configured to face the exterior of the valve;a back surface configured to face the interior of the valve, the back surface in contact with the first wear ring;an inner surface along the interior circumference of the retaining ring, the inner surface in contact with the first wear ring; andan outer surface along the exterior circumference of the retaining ring the outer surface in contact with the housing of the valve such that the retaining ring applies compressive and shear loads to the housing. 15. The gate valve of claim 14, wherein the outer surface of the retainer ring is substantially inclined. 16. The gate valve of claim 14, wherein the front surface of the retaining ring has a smaller surface area than the back surface of the retaining ring. 17. The gate valve of claim 14, wherein the front surface of the retaining ring has a smaller outside diameter than outside diameter of the back surface of the retainer ring.

이 특허에 인용된 특허 (113)

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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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Wear ring retainer for a gate valve 원문보기

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Wear ring retainer for a gate valve 원문보기

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