Flush valve flow control refill ring
First Claim
1. A flush valve for use with toilet devices such as urinals and water closets, including a body having an inlet and an outlet, a valve seat between said inlet and outlet, a valve member movable toward and away from said valve seat to control the flow of water to said outlet, said valve member including a diaphragm, a refill ring attached to said diaphragm for controlling water flow between the flush valve inlet and outlet, said refill ring having a plurality of axially extending exterior grooves in communication with said inlet when the valve member is away from said valve seat, said refill ring having radially extending passages connecting a portion of said grooves with the interior of said refill ring, the interior of said refill ring being in communication with the flush valve outlet, said refill ring exterior grooves and radial passages providing communication between said inlet and said outlet when said valve member is away from said valve seat.
4 Assignments
0 Petitions
Accused Products
Abstract
A flush valve for use with toilet devices such as urinals and water closets includes a body having an inlet and an outlet. There is a valve seat between the inlet and outlet and a barrel connects the valve seat with the outlet. A diaphragm assembly is positioned within the flush valve and movable toward and away from a closing position on the valve seat to control the flow of water to the outlet. The diaphragm assembly includes a diaphragm peripherally clamped within the flush valve housing and a refill ring extending downstream from the diaphragm. The refill ring has a plurality of circumferentially disposed passages connecting the inlet and outlet when the diaphragm assembly is away from the valve seat. The size of the passages in the refill ring determines the volume of water flow during operation of the flush valve.
88 Citations
16 Claims
- 1. A flush valve for use with toilet devices such as urinals and water closets, including a body having an inlet and an outlet, a valve seat between said inlet and outlet, a valve member movable toward and away from said valve seat to control the flow of water to said outlet, said valve member including a diaphragm, a refill ring attached to said diaphragm for controlling water flow between the flush valve inlet and outlet, said refill ring having a plurality of axially extending exterior grooves in communication with said inlet when the valve member is away from said valve seat, said refill ring having radially extending passages connecting a portion of said grooves with the interior of said refill ring, the interior of said refill ring being in communication with the flush valve outlet, said refill ring exterior grooves and radial passages providing communication between said inlet and said outlet when said valve member is away from said valve seat.
- 9. A valve member assembly for use in a toilet device flush valve for closing upon a valve seat thereof, the valve seat being located intermediate the flush valve inlet and outlet, with the flush valve having a barrel connecting the valve seat and outlet, said valve member including a diaphragm, a refill ring attached to said diaphragm for controlling water flow between the flush valve inlet and outlet, said refill ring having a plurality of circumferentially disposed axially extending exterior grooves in communication with the flush valve inlet when the valve member is away from the flush valve seat, said refill ring having radially extending passages connecting a portion of said grooves with the interior of said refill ring, the interior of said refill ring being in communication with the flush valve outlet, said refill ring exterior grooves and radial passages providing communication between the flush valve inlet and outlet when the valve member is away from said valve seat.
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16. A valve member assembly for use in a toilet device flush valve for closing upon a valve seat thereof, the valve seat being located intermediate the flush valve inlet and outlet, with the flush valve having a barrel connecting the valve seat and outlet, said valve member including a diaphragm, a refill ring attached to said diaphragm for controlling water flow between the flush valve inlet and outlet, said refill ring having a plurality of circumferentially disposed passages connecting the inlet and the outlet when the valve member is away from the flush valve seat, with the size of the passages determining the volume of water flow during operation of the flush valve, and a flow control ring attached to the downstream end of the refill ring, said flow control ring having a portion thereof which extends inwardly of said refill ring and covering a portion of said refill ring passages.
Specification