Adapters and adapter systems for valve closure systems and valve closure assemblies
AssigneePowell Fabrication & Manufacturing, Inc.
InventorsRichard D. Fortino, David N. Maniez JR.
Life of this patent
Estimating the term…
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.
Claims29
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.
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.
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.
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.
A valve closure system for operating different tank valves comprising:
- 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.
Dependencies are inferred from the claim text.