IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0357901
(2003-02-04)
|
발명자
/ 주소 |
|
출원인 / 주소 |
- Fisher Controls International LLC
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
3 인용 특허 :
8 |
초록
▼
A stem connector assembly includes a connector body formed from a single piece of metal, and having a frame portion and a valve stem passageway extending through the frame portion. In one aspect, the connector body also includes an actuator stem passageway extending through the frame portion, and ha
A stem connector assembly includes a connector body formed from a single piece of metal, and having a frame portion and a valve stem passageway extending through the frame portion. In one aspect, the connector body also includes an actuator stem passageway extending through the frame portion, and has a locking unit. The locking unit couples an actuator stem and a valve stem to the connector body. In operation, the stem connector assembly provides for unified movement of the actuator stem and valve stem, permits some misalignment between the two, thus reducing wear of the associated rod and stem components. The stem connector assembly further includes at least one mounting assembly, such as among others at least one NAMUR standard mounting assembly, to facilitate ready mounting of component elements associated with a stem connector assembly, such as a positioner, for example. The connector assembly also includes a size adjustment system, to accommodate a wide variety of valve and/or actuator stem sizes without exchanging for a connector body of another size.
대표청구항
▼
1. A stem connector operatively connecting an actuator rod to a valve stem, comprising:a connector body having a frame portion, the connector body including an inner surface and an outer surface, the inner surface forming an inner chamber an the outer surface including a mounting opening formed to a
1. A stem connector operatively connecting an actuator rod to a valve stem, comprising:a connector body having a frame portion, the connector body including an inner surface and an outer surface, the inner surface forming an inner chamber an the outer surface including a mounting opening formed to at least one standard mounting specification to permit mounting of a component element to the stem connector; an actuator rod passageway extending from the outer surface through the frame portion into the inner chamber, the actuator rod passageway adapted to receive an actuator rod portion; and a valve stem passageway extending from the outer surface through the frame portion into the inner chamber, the valve stem passageway adapted to received a valve stem portion; wherein the stem connector substantially eliminates lost motion between the actuator rod and the valve stem. 2. The apparatus of claim 1, wherein the connector body is a unitary component.3. The apparatus of claim 1, wherein one of the actuator rod passageway and the valve stem passageway is tapped so as to threadedly receive the respective one of the actuator rod portion and the valve stem portion.4. The apparatus of claim 3, and a locking member adapted to positionally retain the respective one of the actuator rod portion and the valve stem portion as threadedly received in the respective actuator rod passageway and valve stem passageway.5. The apparatus of claim 1, and an actuator rod portion carrying at a proximate surface thereof an outwardly extending flange portion, and a locking unit adapted to retainably engage the flange portion and couple to the connector body.6. The apparatus of claim 5, where at least part of the outer surface of the connector body is threaded, and the locking unit is end cap member threadedly secured to the threaded outer surface of the connector body.7. The apparatus of claim 1, wherein the valve passageway is a throughbore to receive the valve portion, and a locking unit to retain the valve portion within the valve passageway.8. The apparatus of claim 7, wherein the locking unit comprises at least one lock nut.9. The apparatus of claim 1, wherein the connector body in cross section is one of a generally square, rectangular, hexagonal, octagonal, and cylindrical shape.10. The apparatus of claim 1, and an actuator rod portion having a receiving chamber formed in the proximate end thereof to receive a distal end of a valve stem portion extending thereinto.11. The apparatus of claim 1, wherein both the actuator passageway and the valve passageway of the connector body are tapped to threadedly receive the respective actuator rod member and valve portion.12. The apparatus of claim 11, an locking units respectively securing the actuator rod member and valve portion to the connector body.13. The apparatus of claim 12, wherein the locking units are lock nuts.14. The apparatus of claim 6, and a locking unit adapted to retainably secure the position of the valve stem portion relative to the connector body.15. The apparatus of claim 1, and an actuator rod member carrying adjacent the distal end thereof a locking ring member, and a locking unit adapted to retainably engage the locking ring member and couple to the connector body.16. The apparatus of claim 15, wherein at least a portion of the outer surface of the connector body is threaded and the locking unit is an end cap member threadedly secured to the threaded outer surface of the connect body.17. The apparatus of claim 15, wherein the locking ring member is one of a snap ring and a spiral spring ring.18. The apparatus of claim 15, and a locking unit adapted to retainably secure the coupled position of the valve member relative to the connector body.19. The apparatus of claim 1, wherein the component element is a positioner.
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