Filter mechanism for diaphragm flush valve
AssigneeSloan Valve Company
InventorsJohn W. Lauer, David C. Hall
Life of this patent
Estimating the term…
Abstract
A diaphragm assembly for use in a diaphragm type toilet room flush valve includes a diaphragm formed of a flexible material and adapted to separate an inlet and outlet of the flush valve. There is a bypass orifice in the diaphragm. A filter assembly is positioned on the flush valve inlet side of the diaphragm and upstream from the bypass orifice. The filter assembly includes a peripherally extending screen spaced from the underside of the diaphragm with the screen being secured to the diaphragm assembly about an inner peripheral portion thereof.
Claims11
A diaphragm assembly for use in a diaphragm type toilet room flush valve including a diaphragm formed of a flexible material and adapted to separate an inlet and outlet of a flush valve, a bypass orifice in said diaphragm, a filter assembly positioned on the flush valve inlet side of said diaphragm and upstream from said bypass orifice, said filter assembly including a peripherally extending screen spaced from an underside of said diaphragm, said screen being secured in said diaphragm assembly about an inner peripheral portion of said screen.
A flush valve including a body having an inlet and an outlet, a passage connecting the inlet and outlet, a valve seat in said passage, a diaphragm positioned to control the flow of water through said passage and to close upon said seat, a bypass orifice mounted in said diaphragm, a filter assembly positioned on the inlet side of said diaphragm and upstream from said bypass orifice, said filter assembly including a peripherally extending screen spaced from an underside of said diaphragm, said filter assembly being secured to said diaphragm about an inner peripheral portion thereof and being secured to said flush valve body about an outer peripheral portion thereof.
Dependencies are inferred from the claim text.