Drain trap with ice plug prevention

Details Drain trap with ice plug prevention Drain trap with ice plug prevention

1990-12-10

1991-08-13

Yasich, Daniel M.

Pipe joints or couplings

Elbow

4206, 138 32, E03C 124, E03F 700

Patent

active

050391356

ABSTRACT:
An improved elongate drain trap made of a material having a low index of heat conductivity and having inlet and outlet end portions and a substantially U-shaped central basin portion below and extending between the end portions and in which water is contained and sometime freezes to establish an ice plug; the improvement comprises an elongate insert made of material having a high index of heat conductivity and having an upper end portion in the inlet portion of the trap and a lower end portion extending through the central basin portion of the trap. The insert functions to absorb heat from hot water deposited in the inlet portion of the trap and to conduct that heat through the basin portion of the trap where it melts a sufficient portion of an ice plug formed therein to establish a flow passage for water through the plug.

REFERENCES:
patent: 299352 (1884-05-01), Coburn
patent: 4562861 (1986-01-01), Payton

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