Flush valve chock

Details Flush valve chock Flush valve chock

1993-07-14

1994-07-19

Walton, George L.

Valves and valve actuation

With means for blocking or disabling actuator

Actuator, or blocking means, includes flow path joint

4321, 4323, 4434, 4661, 137240, 251295, F16K 3502, E03D 5012, E03D 508, E03D 1110

Patent

active

053301528

ABSTRACT:
A chock for holding open a valve member of a flush valve assembly of a portable toilet having an outlet for communicating the toilet with a storage tank, the valve member being associated with the outlet and movable between a closed position wherein the valve member blocks the outlet and an open position wherein the outlet is unblocked, and wherein the valve member is biased toward the closed position, the chock including a body member adapted for placement within the outlet so as to hold the valve member in the open position and allow communication between the outlet and the storage tank, and a handle attached to the body member for placing the body member in the outlet and for removing the body member from the outlet.

REFERENCES:
patent: 187545 (1877-02-01), McEwan
patent: 358929 (1887-03-01), Hill et al.
patent: 429518 (1890-06-01), Goetze
patent: 964838 (1910-07-01), Badger
patent: 1800045 (1931-04-01), Bates
patent: 2817092 (1957-12-01), Hahn
patent: 3129919 (1964-04-01), Evans
patent: 3636971 (1972-01-01), Hagar
patent: 4145773 (1979-03-01), Sargent et al.
patent: 4217668 (1980-08-01), Sargent et al.
patent: 4397445 (1983-08-01), Burquier
patent: 4710988 (1987-12-01), Stewart
patent: 4974899 (1990-12-01), Sargent
patent: 5036554 (1991-08-01), Blount

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