Baths – closets – sinks – and spittoons – Flush closet – Bowl
Patent
1988-10-13
1991-01-29
Recla, Henry J.
Baths, closets, sinks, and spittoons
Flush closet
Bowl
4428, E03D 1108, E03D 1118
Patent
active
049876163
ABSTRACT:
A water closet has a flush tank which reduces the head of flush water presented to a downwardly converging bowl which receives waste to be discharged through an outlet to a siphon trap, the bowl having a rim which causes the flush water to be presented to the trap in a vortex fashion. The trap is U-shaped and includes an upleg and downleg, the upleg having a converging-diverging cross-section to cause the dischrge to be pushed quickly from the bowl into the downleg, which becomes filled and creates a siphon. As waste travels down the downleg it passes through an expansion chamber which imparts a swirling movement to the waste and is again restricted at the outlet, which prevents air from entering the trapway and breaking the siphon.
REFERENCES:
patent: 548239 (1985-10-01), Wells
patent: 705319 (1902-07-01), Bush
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patent: 770027 (1904-09-01), Tilden
patent: 854653 (1907-05-01), Knapp
patent: 2164320 (1939-07-01), Groeniger
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patent: 3538518 (1970-11-01), Helke
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patent: 4197599 (1980-05-01), Tsai
patent: 4277854 (1981-07-01), Tsai
The front cover and pp. 2 and 8 of the undated AquaLine Catalog entitled "Fixture" show Exterior Portion of the Water Closet.
Eljer Manufacturing, Inc.
Fetsuga Robert M.
Recla Henry J.
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