LOW PROFILE BACKWATER VALVE WITH LOCK
First Claim
1. A low profile backwater valve, comprising:
- a hollow valve body having an inlet, an outlet, a top and a bottom;
a pivoting valve member pivotally movable between a normally open position along the bottom of the valve body and a closed position sealing the inlet, the valve member having a hinge end that pivots about a pivot axis toward the bottom of the hollow valve body, a remote end, and opposed sides, the valve member being buoyant in water;
characterised in that;
a locking member is positioned in the hollow valve body;
the locking member having a release position below the pivot axis of the valve member that permits the valve member to pivot freely, and a locking position immediately adjacent to the valve member that secures the valve member in the closed position; and
a handle is attached to the locking member and accessible from outside and from the top of the hollow valve body, the handle moving the locking member between the release position and the locking position.
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Accused Products
Abstract
A low profile backwater valve includes a hollow valve body having an inlet, an outlet, a top and a bottom. A pivoting valve member that is buoyant in water moves between a normally open position along the bottom of the valve body and a closed position sealing the inlet. A locking member is positioned in the hollow valve body. The locking member has a release position below the pivot axis of the valve member that permits the valve member to pivot freely, and a locking position immediately adjacent to the valve member that secures the valve member in the closed position. A handle is attached to the locking member and is accessible from outside and from the top of the hollow valve body. The handle moves the locking member between the release position and the locking position.
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Citations
3 Claims
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1. A low profile backwater valve, comprising:
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a hollow valve body having an inlet, an outlet, a top and a bottom; a pivoting valve member pivotally movable between a normally open position along the bottom of the valve body and a closed position sealing the inlet, the valve member having a hinge end that pivots about a pivot axis toward the bottom of the hollow valve body, a remote end, and opposed sides, the valve member being buoyant in water; characterised in that; a locking member is positioned in the hollow valve body;
the locking member having a release position below the pivot axis of the valve member that permits the valve member to pivot freely, and a locking position immediately adjacent to the valve member that secures the valve member in the closed position; anda handle is attached to the locking member and accessible from outside and from the top of the hollow valve body, the handle moving the locking member between the release position and the locking position. - View Dependent Claims (2, 3)
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Specification