Water heater overflow pan

Details Water heater overflow pan Water heater overflow pan

1976-10-06

1978-04-25

Schwadron, Martin P.

Fluid handling

Systems

Plural tanks or compartments connected for serial flow

137590, 122510, 220 1C, 220DIG14, 220DIG22, F17D 100

Patent

active

040857735

ABSTRACT:
An overflow unit for a water heater installation has a plastic, resilient polystyrene pan with a bottom wall for receiving the bottom of the heater and a continuous side wall including inner and outer walls which diverge downwardly in a range of approximately five to fifteen degrees. A bottom edge portion of the outer wall is substantially coplanar with the bottom or outer face of the bottom wall but, preferably, extends outwardly a distance up to approximately 0.0001 inch from the outer face of the bottom wall when the pan is in a relaxed condition. Upon being placed on a supporting surface and receiving the water heater, the bottom edge portion of the outer wall is snugly and closely seated on the supporting surface. A drain coupling for receiving a drain line opens through the inner and outer walls and is in sealed engagement with the inner wall.

REFERENCES:
patent: 2724401 (1955-11-01), Page
patent: 2995201 (1961-08-01), Stafford
patent: 3063432 (1962-11-01), Bond et al.
patent: 3069671 (1962-12-01), Taylor
patent: 3143243 (1964-08-01), Nackusick
patent: 3405685 (1968-10-01), Harrell
patent: 3430803 (1969-03-01), Nelson
patent: 3473553 (1969-10-01), Collins
patent: 3486523 (1969-12-01), Mullings
patent: 3622036 (1971-11-01), Bongaerts
patent: 4008757 (1977-02-01), Weatherford, Jr.

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