E - Fixed Constructions – 03 – B
Patent
E - Fixed Constructions
03
B
251/65
E03B 9/00 (2006.01)
Patent
CA 1139289
ABSTRACT A drain plug of the standpipe type embodying an elongated tubular member for affording drainage when the liquid level in a compartment is at the top of the stand- pipe, and a resilient, annular valve member mounted on the lower end portion of the standpipe for sealingly engaging a valve seat in a drain opening for preventing flow of said liquid into said drain opening around said standpipe, the valve member having an upper and lower flanged construction that is effective to guard against leakage around and damage to the drain plug if the drain plug is improperly aligned or excessive closing pressures are applied thereto.
363360
Vilen Erik O.
Blakeslee (g.s.) & Co.
Osler Hoskin & Harcourt Llp
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