Trap fitting assembly for mounting in flammable floors

Details Trap fitting assembly for mounting in flammable floors Trap fitting assembly for mounting in flammable floors

1993-03-31

1994-07-05

Cuchlinski, Jr., William A.

Baths, closets, sinks, and spittoons

Drain, overflow or trap for a sink or bath

4696, E03C 120

Patent

active

053255496

ABSTRACT:
An improved trap fitting assembly (10) which prevents the spread of smoke and fire through a floor (100) and ceiling (104) supported by a joist (102) in a building is described. The fitting is preferably adapted for mounting in a tub box (12) and uses a flammable T-connector (24) for draining a tub (106) through an overflow pipe (22) and a drain pipe (20) connected to a tub drain (42). The T-connector is mounted inside of a non-flammable threaded nipple (16) which is mounted in an opening (14) in the tub box by jam nut (26) and a ring gasket (28). A non-flammable J-pipe (30), filled with water to a level L--L, threads onto a lower extension (16b) of the nipple and prevents smoke and fire from spreading through the fitting assembly.

REFERENCES:
patent: 404271 (1889-05-01), Follansbee
patent: 1338079 (1920-04-01), Hirst
patent: 1686926 (1928-10-01), Rich
patent: 3382508 (1968-05-01), Kammermeyer
patent: 3504383 (1970-04-01), Young
patent: 3583003 (1971-06-01), Thompson
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patent: 4338688 (1982-07-01), Petty
patent: 4403355 (1983-09-01), Petty
patent: 4724858 (1988-02-01), Cornwall
patent: 4823527 (1989-04-01), Harbeke
patent: 4920582 (1990-05-01), Alker
patent: 4953235 (1990-09-01), Cornwall

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