Air admittance valve preventing mephitis overflow
OwnerChao Chi Chen, Michael Chianginventors
Life of this patent
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Abstract
An air admittance valve preventing mephitis overflow, having a main body with an air entry guide base defining an air entry guide; a pivot support; and a valve seat. A sealing valve group having a sealing valve body that defines a recess; a flexible member; a pivot housing; and a pivot. The valve seat is located about the air entry guide. The pivot is located in the pivot housing and the pivot support, and the pivot is located along, or adjacent to, the center of gravity of the sealing valve body. The flexible member is at least partially located in the recess and abuts the main body; and when the air admittance valve is closed, the sealing valve body abuts the valve seat.
Claims14
An apparatus comprising an air admittance valve, the air admittance valve comprising:
- a main body comprising an air entry guide base defining an air entry guide, a pivot support, and a valve seat;
- a sealing valve group comprising a sealing valve body, that defines a recess;
- a pivot housing;
- and a pivot;
- wherein the valve seat is located about the air entry guide;
- the pivot is located in the pivot housing and the pivot support, and the pivot passes through, or is adjacent to, a center of gravity of the sealing valve body;
- and when the air admittance valve is closed, the sealing valve body abuts a downstream side of the valve seat.
A vehicle comprising:
- an air admittance valve comprising:
- a main body comprising an air entry guide base defining an air entry guide, a pivot support, and a valve seat;
- a sealing valve group comprising a sealing valve body, that defines a recess;
- a pivot housing;
- and a pivot;
- wherein the valve seat is located about the air entry guide;
- the pivot is located in the pivot housing and the pivot support, and the pivot passes through, or is adjacent to, a center of gravity of the sealing valve body;
- and when the air admittance valve is closed, the sealing valve body abuts a downstream side of the valve seat.
An apparatus comprising an air admittance valve, the air admittance valve comprising:
- a main body comprising an air entry guide base defining an air entry guide, a pivot support, and a valve seat;
- a sealing valve group comprising a sealing valve body, that defines a recess;
- a pivot housing;
- and a pivot;
- wherein the valve seat is located about the air entry guide;
- the pivot is located in the pivot housing and the pivot support;
- an axis of rotation of the sealing valve body passes through, or is adjacent to, a center of gravity of the sealing valve body;
- and when the air admittance valve is closed, the sealing valve body abuts a downstream side of the valve seat.
Dependencies are inferred from the claim text.