Gate valve
AssigneeMcWane, Inc.
InventorPaul Kennedy
Life of this patent
Estimating the term…
Abstract
A gate valve includes a valve body and a valve cover. The valve body includes a first opening, a second opening, a third opening, a flow passage from the first opening to the second opening, and a gate channel from the flow passage to the third opening. The gate channel has a central longitudinal axis and a ridge defining a perimeter of the third opening. The valve cover can fit over the third opening and, under force on the valve cover, exert a clamping force on the ridge. The clamping force has a first force component perpendicular to the central longitudinal axis and a second force component parallel with the central longitudinal axis. The first force component of the clamping force is toward the gate channel. The ridge includes a first surface configured to mate with a first surface of the valve cover.
Claims11
A gate valve comprising:
- a valve body including a first opening, a second opening, a third opening, a flow passage from the first opening to the second opening, and a gate channel from the flow passage to the third opening, the gate channel having a central longitudinal axis and a ridge defining a perimeter of the third opening;
- and
- a valve cover configured to fit over the third opening and, as a result of force parallel to the central longitudinal axis on the valve cover toward the valve body, to exert a clamping force on the ridge, the clamping force having a first force component perpendicular to and toward the central longitudinal axis and a second force component parallel with the central longitudinal axis,
- the ridge including a first surface configured to mate with a first surface of the valve cover, a second surface configured to mate with a second surface of the valve cover, and a slot extending between the first surface of the ridge and the second surface of the ridge.
Dependencies are inferred from the claim text.