Adapters and adapter systems for valve closure systems and valve closure assemblies
First Claim
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1. A valve closure system for operating a tank valve comprising:
- a valve closure assembly comprising a power actuator for turning a handle of the tank valve via an adapter that comprises a first part for attaching the adapter to an output shaft of the actuator and a second part joined to the first part and comprising a base plate having a polygonal perimeter.
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Abstract
A valve closure assembly (50) for remotely and automatically closing railway tank car valves (V1, V2, V3, V4) characterized by a series of novel adapters (180, 240, 242, 244, 252, 254) for enabling one valve closure assembly to turn the handles of various different valves, including soft-seat valves and hard-seat valves.
26 Citations
29 Claims
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1. A valve closure system for operating a tank valve comprising:
a valve closure assembly comprising a power actuator for turning a handle of the tank valve via an adapter that comprises a first part for attaching the adapter to an output shaft of the actuator and a second part joined to the first part and comprising a base plate having a polygonal perimeter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An adapter for use in a valve closure system for operating a tank valve comprising:
a first part for attachment to an output shaft of a valve closure assembly of the actuator and a second part joined to the first part and comprising a base plate having a polygonal perimeter. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. An adapter for use in a valve closure system for operating a tank valve comprising:
a first part for attachment to an output shaft of a valve closure assembly and a second part joined to the first part and comprising a base plate having an octagonal perimeter. - View Dependent Claims (26)
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27. An adapter for use in a valve closure system for operating a tank valve comprising:
a first part for attachment to an output shaft of a valve closure assembly and a second part joined to the first part and comprising three drive pins arranged in a circular pattern about a main axis of the adapter and two of which are spaced 72°
apart about the main axis and each is spaced 144°
from the third.- View Dependent Claims (28)
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29. A valve closure system for operating different tank valves comprising:
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a valve closure assembly comprising a power actuator for turning a handle of one tank valve selectively in a direct drive mode via a first adapter without a torque limiter and a handle of a different tank valve in a torque limiting mode via a second adapter with a torque limiter, wherein the first adapter is configured for attachment directly to the power actuator but not to the torque limiter, and the second adapter is configured for attachment directly to the torque limiter but not to the power actuator.
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Specification