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Low profile overbalanced backwater valve

Pending Publication Date: 2018-06-07
COSCARELLA GABE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patent describes a backwater valve that has a pivoting member to control the opening and closing of an inlet. The valve member is balanced by an overbalancing member that can be a counterweight or a magnetic element. The overbalancing member is positioned at the hinge end of the valve member and is vertically above the pivot axis when the valve member is in the open position and horizontally over from the pivot axis when the valve member is in the closed position. This valve design ensures that the valve member stays in the closed position when the backwater pressure is too high, preventing any damage to the system.

Problems solved by technology

As a result, there are some installations for which the valve is not suited because there is insufficient clearance space.

Method used

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  • Low profile overbalanced backwater valve
  • Low profile overbalanced backwater valve
  • Low profile overbalanced backwater valve

Examples

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Embodiment Construction

[0016]A low profile backwater valve generally identified by reference numeral 10 will now be described with reference to FIGS. 1-7.

[0017]Structure and Relationship of Parts:

[0018]Referring to FIG. 1, backwater valve 10 has a hollow valve body 12 having an inlet 14, an outlet 16, and a bottom 18. A pivoting valve member 20 is pivotally movable between a normally open position along bottom 18 of valve body 12 and a closed position sealing inlet 14. Valve member 20 has a hinge end 22, a remote end 24, and opposed sides 26.

[0019]In the example depicted in FIGS. 1-7, backwater valve 10 is a low profile backwater valve and this is described below. It will be understood that the overbalancing element depicted in FIGS. 6 and 7 may be applied to other types of backwater valves as well. However, it has been found that low profile backwater valve 10 of the type depicted are particularly susceptible to “flutter,” where changes in the backflow may cause valve member 20 to open prematurely.

[0020]...

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Abstract

A backwater valve has a hollow valve body with an inlet defined by a vertical surface, an outlet, and a bottom. A pivoting valve member is pivotally movable about a pivot axis between a normally open position along the bottom of the valve body and a closed, vertical position sealing the inlet. The valve member has a hinge end, the pivot axis being positioned at the hinge end. An overbalancing member carried by the valve member biases the float toward the closed position. The overbalancing member comprises at least one of a counterweight and a magnetic element. The overbalancing member is positioned at the hinge end and spaced from the pivot axis such that the overbalancing member is vertically above the pivot axis when the valve member is in the open position and horizontally over from the pivot axis when the valve member is in the closed position.

Description

CROSS-REFERENCE TO RELATED APPLICATION[0001]This application is a continuation of U.S. patent application Ser. No. 14 / 520131, filed Oct. 21, 2014, of which is incorporated herein by reference.FIELD[0002]The present invention relates to a backwater valve used to prevent a backflow of sewage into a home.BACKGROUND[0003]U.S. Pat. No. 5,406,972 (Coscarella et al.) relates to a backwater valve which prevents a backflow of sewage into a home. This backwater valve needs a minimum amount of clearance space. As a result, there are some installations for which the valve is not suited because there is insufficient clearance space.SUMMARY[0004]According to an aspect, a backwater valve comprises a hollow valve body having an inlet defined by a vertical surface, an outlet, and a bottom. A pivoting valve member is pivotally movable about a pivot axis between a normally open position along the bottom of the valve body and a closed, vertical position sealing the inlet. The valve member has a periphe...

Claims

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Application Information

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IPC IPC(8): E03F7/04
CPCY10T137/7407E03F7/04
Inventor COSCARELLA, GABE
Owner COSCARELLA GABE
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