Normally-open backwater valve with suspended flapper

Inactive Publication Date: 2017-02-23
RECTORSEAL LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present disclosure involves a normally-open backwater valve that prevents fluid backflow from a sewage system into a building's discharge conduits. The valve has a valve body with a fluid flow passageway and a flapper moveable between open and closed positions. The flapper is positioned by a flapper magnet and a valve body magnet to suspend it above the valve's lower interior surface when in the open position. The technical effect of this invention is to provide a reliable and efficient means to prevent blockages and damage caused by backflow of sewage and drainage from a building's discharge conduits.

Problems solved by technology

Consequently, the flapper may get stuck in an open position and / or not form a fluid-tight seal in the closed position, causing operational failure, leakage, requiring maintenance or other undesirable result.

Method used

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  • Normally-open backwater valve with suspended flapper
  • Normally-open backwater valve with suspended flapper
  • Normally-open backwater valve with suspended flapper

Examples

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Embodiment Construction

[0020]The present inventions now will be described more fully hereinafter with reference to the accompanying drawings, in which at least some preferred embodiments of the invention are shown. The inventions of this disclosure may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete and fully convey the scope of the inventions provided herein to those skilled in the art.

[0021]Characteristics and advantages of the present disclosure and additional features and benefits will be readily apparent to those skilled in the art upon consideration of the following detailed description of exemplary embodiments of the present disclosure and referring to the accompanying figures. It should be understood that the description herein and appended drawings, being of example embodiments, are not intended to limit the claims of this patent ap...

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Abstract

A normally-open backwater valve fluidly coupled between one or more discharge conduits of a building, or other location, and a sewage, or drainage, system includes a valve body having a horizontally-oriented fluid flow passageway, a flapper pivotably moveable therein and at least one spacer configured to position the flapper above the lower interior surface of the valve body in the passageway when the flapper is in an open position.

Description

[0001]This application claims priority to U.S. Provisional Patent Application Ser. Nos. 62 / 283,054 filed on Aug. 19, 2015 and entitled “Normally Open Backwater Valve with Magnets” and 62 / 398,040, filed on Feb. 16, 2016 and entitled “Normally Open Backwater Valve with Magnets”, both of which are hereby incorporated by reference herein in their entireties.FIELD OF THE DISCLOSURE[0002]This disclosure relates to normally-open backwater valves for sewage and drainage conduits.BACKGROUND[0003]Backwater valves are used in homes and other buildings to prevent sewage backup into the residence or building, such as due to a plugged sewer system, excess volume in the system, groundwater flooding or other causes. Two common types of backwater valves are referred to as “nomrally-closed” backwater valves and “normally-open” backwater valves based upon the normal position of the flapper member that closes off the valve. In many municipalities, backwater valves are required by law. Some jurisdiction...

Claims

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Application Information

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IPC IPC(8): E03F7/04
CPCE03F7/04
Inventor XU, ZHENGYIGRODJESK, HARVEY
Owner RECTORSEAL LLC
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