Pop-up valve for managing backflow
AssigneeAxxiom Manufacturing, Inc.
InventorPhuong Taylor Nguyen
Life of this patent
Estimating the term…
Abstract
A pop-up valve or valve assembly operable to manage backflow, the assembly configured with a stem or stem portion. The assembly includes a valve sleeve disposed on the stem. The valve sleeve is configured to engage the stem. A stem outside diameter is smaller than an inside diameter of the valve sleeve, such that the sleeve is able to move freely on the stem and also provide a restricted passage for airflow.
Claims20
A pressurizable vessel configured with a sealable port, the pressurizable vessel comprising:
- a pop-up valve assembly proximately located near the sealable port, the pop-up valve assembly comprising:
- a valve head;
- a valve stem coupled with the valve head, the valve stem further comprising an upper stem portion, a middle stem portion, and a bottom stem portion;
- a valve sleeve movingly disposed around the middle stem portion;
- an open pipe having the bottom stem portion and an at least a portion of the middle stem portion disposed therein;
- and
- a valve seat disposed on an end of the open pipe.
A pressurizable vessel configured with a sealable port, the pressurizable vessel comprising:
- a pop-up valve assembly proximately located near the sealable port, the pop-up valve assembly comprising:
- a valve head;
- a valve stem coupled with the valve head, the valve stem further comprising an upper stem portion, a middle stem portion, and a bottom stem portion;
- a valve sleeve movingly disposed around the middle stem portion;
- an open pipe having the bottom stem portion and an at least a portion of the middle stem portion disposed therein;
- and
- a valve seat disposed on an end of the open pipe,
- wherein the valve stem and the valve head are movable together between a fully retracted position and a sealing position.
A pop-up valve assembly for use in managing backflow of a pressurizable vessel, the pop-up valve assembly comprising:
- a valve head;
- a valve stem coupled with the valve head, the valve stem further comprising an upper stem portion, a middle stem portion, and a bottom stem portion;
- a valve sleeve movingly disposed around the middle stem portion;
- and
- a valve seat,
- wherein the valve stem and the valve head are movable together between a retracted position and a sealing position,
- wherein in the retracted position, the valve seat has a contact point with a face of the valve sleeve,
- wherein the middle stem portion has a middle stem outer diameter,
- wherein the valve sleeve has an inner sleeve diameter,
- wherein an upper annulus is formed as a result of a difference in cross-sectional area of the middle stem outer diameter and the inner sleeve diameter, and
- wherein the bottom stem portion has a bottom stem outer diameter.
Dependencies are inferred from the claim text.