Toilet discharge valve

Details Toilet discharge valve Toilet discharge valve

2007-10-23

2007-10-23

Le, Huyen (Department: 3751)

Baths, closets, sinks, and spittoons

Flush closet

Bowl

C004S438000

Reexamination Certificate

active

11525556

ABSTRACT:
Disclosed are valve assemblies for controlling flow from a toilet bowl to a trap way. In one form there is a cartridge unit in which a pivotable gate is mounted. The gate can swing from a blocking/closing position to a position in which it is essentially hidden away in a recess out of the main flow path. The surface of the gate facing the bowl is inwardly dished to further facilitate flow optimization.

REFERENCES:
patent: 168613 (1875-10-01), Carr
patent: 209996 (1878-11-01), Wellington
patent: 234570 (1880-11-01), Hellyer
patent: 258454 (1882-05-01), Johnson
patent: 279048 (1883-06-01), Tweeddale
patent: 283172 (1883-08-01), Walsh
patent: 299333 (1884-05-01), Birkett
patent: 717651 (1903-01-01), Allen
patent: 4016609 (1977-04-01), Graham

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