Waste outlet assembly

Details Waste outlet assembly Waste outlet assembly

2007-07-24

2007-07-24

Huynh, Khoa D. (Department: 3751)

Baths, closets, sinks, and spittoons

Flush closet

Urinals only

C004S679000, C004S287000, C004S286000

Reexamination Certificate

active

10471238

ABSTRACT:
The present invention relates to a waste outlet assembly, in particular a waste outlet assembly for a urinal of the type commonly found in men's lavatories. There is described an elongate cylindrical insert having an operatively upper end and an operatively lower end and being insertable into the waste outlet of a urinal bowl or trough, which outlet includes a liquid trap, wherein the insert is radially dimensioned to provide a close fit against the walls of the waste outlet; and wherein the insert is longitudinally dimensioned such that, in use, the lower end extends into liquid in the liquid trap. There is also described a urinal including such an insert. The present invention also provides a process for reducing the emission of odours from a urinal having a liquid seal trap, the method comprising inserting a cylindrical element into the outlet of the urinal wherein the elongate element is radially dimensioned to provide a close fit against the walls of the waste outlet; and wherein the elongate element is longitudinally dimensioned such that, in use, a lower end thereof extends into liquid in the liquid trap.

REFERENCES:
patent: 1751877 (1930-03-01), Nance
patent: 2472322 (1949-06-01), Weissman
patent: 3725964 (1973-04-01), Whitsett
patent: 4045346 (1977-08-01), Swaskey
patent: 4224701 (1980-09-01), Huang
patent: 4244061 (1981-01-01), Webster et al.
patent: 6701541 (2004-03-01), Romagna et al.
patent: 0138796 (1985-04-01), None

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