Check valve with hanger
AssigneeRed Valve Company, Inc.
InventorSpiros G. Raftis
Life of this patent
Estimating the term…
Abstract
A large diameter check valve has an upstream inlet part mountable on a discharge end of a conduit, a downstream outlet part adapted to prevent backflow of fluid through the check valve, and a transition part located between the upstream inlet part and the downstream outlet part. A support is included in the check valve to prevent drooping of the check valve via a cantilever effect. A method for supporting a check valve is also disclosed.
Claims27
A large diameter check valve, comprising:
- an upstream inlet part mountable on the discharge end of a conduit;
- a downstream outlet part adapted to prevent backflow of fluid through the check valve;
- a transition part located between the upstream inlet part and the downstream outlet part;
- and
- a rigid support connected to an upper portion only of at least said inlet part and said transition part.
A support mountable on a check valve having an inlet part, an outlet part and a transition part, the support comprising:
- a plate having a size and contour similar to an upper portion of at least the inlet part and the transition part of the check valve;
- and
- means for securing the plate to the upper portion of the check valve.
A support mountable on a duckbill check valve, comprising a short curved plate capable of being connected to the inlet part of the duckbill check valve, and at least one bar connected to the curved plate and capable of being connected to at least the transition part of the check valve.
A method for supporting a large diameter check valve consisting of an inlet part, a transition part, and an outlet part including the steps of:
- providing a rigid, curved plate whose contour and size matches an upper portion of at least the inlet part of the check valve;
- securing the curved plate to the upper portion of the check valve;
- and
- supporting at least the inlet part and transition part of the check valve with a cantilever effect via the curved plate.
Dependencies are inferred from the claim text.