Drain jointing system

Details Drain jointing system Drain jointing system

1974-05-15

1976-02-10

Arola, Dave W.

Pipe joints or couplings

With fluid pressure seal

Flexible lip

285161, 285351, F16L 1702

Patent

active

039374971

ABSTRACT:
A composite seal for joining a down flow drain pipe to a shower pan has a drain fitting provided with a tapered rim overlying the shower pan and a packing nut for holding it in place. A flanged lower portion of the fitting forms an annular pocket around the drain pipe in which a series of three rings are stacked. The center ring has normally diverging annular sections which are forced together between the pipe and the flanged portion of the fitting thereby to seal the assembly.

REFERENCES:
patent: 2497441 (1950-02-01), Detweiler
patent: 2565923 (1951-08-01), Hrdlilka
patent: 2626674 (1953-01-01), Boosey
patent: 3700381 (1972-10-01), Deeke

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