Patent ID: 9157547
Filing Date: 2015-10-13
Classification: F16K,Y10T

Abstract:
1. An apparatus comprising: a wedge-shaped member of a valve, the wedge-shaped member having a first surface and a second surface that is angled with respect to the first surface; a stem coupled to the wedge-shaped member; and a cage of the valve, the cage having a main body that includes an opening that extends through the main body from a first end of the main body to a second end of the main body, the opening being formed by at least a third surface and a fourth surface of the cage and being configured to receive the wedge-shaped member through the first end of the main body such that: the first end of the main body is proximal to the stem, the second end of the main body is distal to the stem, a throttling orifice is formed as a space between the second surface and the fourth surface, and the stem can be moved into contact with a seal on the first end of the main body to fully impede flow of fluid through the throttling orifice.