High pressure duckbill valve and insert
AssigneeXylem IP Holdings LLC
InventorsPeter Wright, Robert J. Romero, David L. Phillips
Life of this patent
Estimating the term…
Abstract
The present invention provides apparatus featuring a check valve featuring a duckbill valve configured to provide fluid and particulate; and an insert having a base portion configured to seat the insert inside the duckbill valve, and a W-shaped portion configured with an opening to pass the fluid and particulate through the duckbill valve and also configured to provide support for walls of the duckbill valve in response to back pressure caused by the fluid and particulate.
Claims20
A check valve assembly comprising:
- a duckbill check valve seat configured with an end having a slit to open to provide a fluid and particulate, and to close to prevent the backflow of the fluid and particulate;
- and
- a duckbill check valve support having a base portion configured to be inserted inside the duckbill check valve seat, and having a W-shaped portion configured with an opening to pass the fluid and particulate through the duckbill check valve support to the duckbill check valve seat and also configured to provide support for walls of the duckbill check valve seat in response to back pressure caused by the fluid and particulate,
- the W-shaped portion including two end supporting arms and two raised intermediate supporting arms configured to form the opening to pass the fluid and particulate through the duckbill check valve support to the duckbill check valve seat and provide support for walls of the duckbill check valve seat in response to back pressure caused by the fluid and particulate, including backpressure up to about 80 PSI.
A duckbill check valve support for inserting into a duckbill check valve seat configured with an end having a slit to open to provide a fluid and particulate, and to close to prevent the backflow of the fluid and particulate, the duckbill check valve support comprising:
- a base portion configured to arrange the duckbill check valve support inside the duckbill check valve seat;
- and
- a W-shaped portion configured with an opening to pass the fluid and particulate through the duckbill check valve support and also configured to provide support for walls of the duckbill check valve seat in response to back pressure caused by the fluid and particulate,
- the W-shaped portion including two end supporting arms and two raised intermediate supporting arms configured to form the opening to pass the fluid and particulate through the duckbill check valve support to the duckbill check valve seat and provide support for walls of the duckbill check valve seat in response to back pressure caused by the fluid and particulate, including back pressure up to about 80 PSI.
A check valve assembly comprising:
- a duckbill valve configured to provide fluid and particulate;
- and
- an insert having a base portion configured to seat the insert inside the duckbill valve, and a W-shaped portion configured with an opening to pass the fluid and particulate through the duckbill valve and also configured to provide support for walls of the duckbill valve in response to back pressure caused by the fluid and particulate,
- the W-shaped portion including two end supporting arms and two raised intermediate supporting arms configured to form the opening to pass the fluid and particulate through the duckbill check valve support to the duckbill check valve seat and provide support for walls of the duckbill check valve seat in response to back pressure caused by the fluid and particulate, including back pressure up to about 80 PSI.
Dependencies are inferred from the claim text.