Back to results
US 12,698,837 B2Granted
Securing a plug assembly in a valve
AssigneeDresser, Inc.
InventorsAurelien Thomas Jules Reau, Romain Francois Pierre Chenu, Valentin Mercier, Mickael Olaya
Life of this patent
Estimating the term…
Abstract
A plug assembly is configured for use in a valve. These configurations may include a plug with a sealing surface that can interface with a seat to regulate flow of fluid through the valve. A keyed shaft may insert into the plug. The keyed shaft can rotate to change location of key members in the plug. In one implementation, a technician can rotate the keyed shaft from a first position to a second position at which the key members couple the plug with the valve body.
Claims19
A valve, comprising:
- a valve body having a flow path;
- a boss disposed in the flow path;
- and
- a plug assembly coupled to the boss, the plug assembly comprising,
- a plug having a first bushing with a top and a bottom and a bore extending therethrough, the plug comprising a first longitudinal slot extending from the top to the bottom in the bore and a second longitudinal slot extending from the bottom and terminating within the first bushing;
- and
- a keyed shaft extending into each of the boss and the first bushing, the keyed shaft comprising at least one protrusion that fits into the first longitudinal slot and the second longitudinal slot.
4 more elements
A valve plug, comprising:
- a disc;
- a first leg and a second leg extending away from the disc;
- and
- a first bushing and a second bushing disposed on a free end of the first leg and the second leg, respectively,
- wherein the first bushing has a first end and a second end, and
- wherein the first bushing comprises a first longitudinal bore with a first longitudinal slot and a second longitudinal slot,
- wherein the first longitudinal slot extends from the first end to the second end, and
- wherein the second longitudinal slot extends from the second end and terminates before the first end.
5 more elements
A method, comprising:
- providing a valve body with a boss disposed in an interior cavity, the boss having a bore;
- providing a valve plug with a bushing having a top, a bottom, and a bore extending therethrough, the bore having a first longitudinal slot and a second longitudinal slot, the first longitudinal slot extended from the top to the bottom and the second longitudinal slot extending from the bottom and terminating between the top and the bottom;
- securing the valve plug in the interior cavity with a keyed shaft that extends into part of the valve plug and the bore,
- wherein the keyed shaft is rotatable in the valve plug so as to change position of a key member from a first position that allows the keyed shaft to exit from the valve plug to a second position that prevents the keyed shaft from exiting the valve plug.
1 more element
Dependencies are inferred from the claim text.