Bonded seat valve
AssigneeMueller International, LLC
InventorXianhua Feng
Life of this patent
Estimating the term…
Abstract
A valve seat includes a first end; a second end positioned opposite from the first end; and a body extending from the first end to the second end, the body defining an inner surface and an outer surface, the inner surface defining a main bore extending through the body from the first end to the second end, the main bore defining a main bore axis, the body defining a shaft bore extending from the inner surface to the outer surface, the shaft bore defining a shaft bore axis positioned perpendicular to the main bore axis, the shaft bore defining an inner shaft opening and an outer shaft opening, the body defining a concave seat bearing surface extending around the inner shaft opening.
Claims19
A valve seat comprising:
- a first end;
- a second end positioned opposite from the first end;
- and
- a body extending from the first end to the second end, the body defining an inner surface and an outer surface, the inner surface defining a main bore extending through the body from the first end to the second end, the main bore defining a main bore axis, the body defining a shaft bore extending from the inner surface to the outer surface, the shaft bore defining a shaft bore axis positioned perpendicular to the main bore axis, the shaft bore defining an inner shaft opening and an outer shaft opening, the body defining a concave seat bearing surface extending around the inner shaft opening, the body defining a sealing portion centered between the first end and the second end, the sealing portion positioned between a first bore portion and a second bore portion, the first bore portion and the second bore portion of the sealing portion extending radially outward from the outer surface of the body, the body further defining a circumferential sealing rib extending circumferentially around the body, the circumferential sealing rib extending radially outward from the first bore portion and the second bore portion of the sealing portion, and a boss circumscribing the shaft bore and extending radially outward beyond a radial height of the circumferential sealing rib.
A valve comprising:
- a valve seat defining an inner seat surface and an outer seat surface defining a cylindrical portion extending from a first transition shoulder to a second transition shoulder, a shaft bore extending through the valve seat from the inner seat surface to the outer seat surface, an inner shaft opening of the shaft bore defined at the inner seat surface, the inner seat surface defining a main bore extending from a first end of the valve seat to a second end of the valve seat, the main bore defining a bore axis, the inner seat surface defining a concave seat bearing surface extending around the inner shaft opening, the valve seat further defining a circumferential sealing rib extending circumferentially around and radially outward from cylindrical portion, and a boss circumscribing the shaft bore and extending radially outward beyond a radial height of the circumferential sealing rib;
- and
- a valve member defining an end engaging the concave seat bearing surface, the end defining a valve member end surface, the valve member end surface defining a convex shape, the valve member defining an edge, the edge positioned in contact with the inner seat surface when the valve member is in a closed position, an axial width of the edge being less than an axial width of the circumferential sealing rib.
Dependencies are inferred from the claim text.