Inlet check valve
AssigneeWaterjet Service, Inc.
InventorsMichael E. Gaillard, Steve W. Balls
Life of this patent
Estimating the term…
Abstract
A check valve assembly mounted on an end surface of a projection of a valve body. The check valve assembly includes a valve having a sealing surface on one side and a stem on an opposite side, and the valve body includes a fluid inlet intersecting the end surface of the projection. A rigid mounting plate has a first locating element adapted to locate the mounting plate with respect to the end surface on the projection. The mounting plate has a second locating element adapted to receive a fastener for attaching the mounting plate to the end surface of the projection. A clearance hole in the mounting plate is sized to receive the stem of the valve. The stem of the valve moves freely within the first clearance hole thus permitting the valve to move freely between open and closed positions.
Claims21
An apparatus for a check valve assembly mounted on an end surface of a projection extending from one end of a valve body, the check valve assembly including a valve having a sealing surface on one side and an integral stem on an opposite side, the valve body having a fluid inlet intersecting the end surface of the projection, the apparatus comprising:
- a rigid mounting plate having
- a first locating element adapted to receive a fastener attaching the mounting plate to the end surface of the projection,
- a clearance hole sized to receive the stem of the valve,
- the sealing surface of the valve bearing against the end surface of the projection to define a closed valve position blocking a flow of liquid through the fluid inlet, and
- the sealing surface of the valve being positioned away from the end surface of the projection to define an open valve position permitting the flow of liquid through the fluid inlet.
A check valve assembly mounted on an end surface of a projection extending from one end of a valve body, the valve body having a low pressure fluid inlet and a high pressure fluid outlet intersecting the end surface of the projection, the check valve assembly comprising:
- a valve having
- a sealing surface on one side having an area larger than, and positioned concentrically with respect to, an area of the fluid inlet, and
- an integral stem on an opposite side;
- a mounting plate having
- a lower side having an area adapted to contact the end surface of the projection,
- a first locating element adapted to locate the mounting plate with respect to the end surface on the projection, and
- a second locating element adapted to receive a fastener attaching the mounting plate to the end surface of the projection,
- a clearance hole sized to receive the stem of the valve,
- the sealing surface of the valve bearing against the end surface of the projection to define a closed valve position blocking a flow of liquid through the fluid inlet, and
- the sealing surface of the valve being positioned away from the end surface of the projection to define an open valve position permitting the flow of liquid through the fluid inlet.
A check valve assembly comprising:
- a valve body having a projection extending from one end, the projection having an end surface intersecting a low pressure fluid inlet and a high pressure fluid outlet;
- a valve having
- a sealing surface on one side centrally located with respect to, and being larger than, the fluid inlet, and
- an integral stem on an opposite side;
- a mounting plate having
- a first locating element adapted to locate the mounting plate with respect to the end surface on the projection, and
- a second locating element adapted to receive a fastener attaching the mounting plate to the end surface of the projection,
- a clearance hole sized to receive the stem of the valve,
- the sealing surface of the valve bearing against the end surface of the projection to define a closed valve blocking a flow of liquid through the fluid inlet, and
- the sealing surface of the valve being positioned away from the end surface of the projection to define an open valve position permitting the flow of liquid through the fluid inlet.
Dependencies are inferred from the claim text.