B - Operations – Transporting – 60 – R
Patent
B - Operations, Transporting
60
R
137/15
B60R 15/04 (2006.01) E03D 5/00 (2006.01) F16K 24/00 (2006.01)
Patent
CA 1298529
ABSTRACT An improved vent structure for a toilet which is normally open but automatically closable depending on the water level whereby to prevent unwanted spills allows air to escape from the interior of a flush water holding tank. A cruciform shaped stem including a buoyant body attached thereto reciprocates in a bore, and a seal, provided by an interior bellows or by the buoyant body, closes the air path when the stem is buoyed upwardly by a rise in the water level.
580192
Antos John Michael
Cameron David Bruce
Macrae & Co.
Thetford Corporation
LandOfFree
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