Thermal barrier threshold

Details Thermal barrier threshold Thermal barrier threshold

1973-07-19

1976-11-09

Kannan, Philip C.

Movable or removable closures

Threshold

E06B 170

Patent

active

039901874

ABSTRACT:
A threshold formed of an extruded aluminum shape and a plastic shape, the two shapes being interlocked and the plastic shape defining that part of the threshold inwardly of the bottom of a door and exposed to outside temperatures. The aluminum shape extends outwardly from the door and provides the base for the plastic threshold shape.

REFERENCES:
patent: 2718677 (1955-09-01), Cornell
patent: 3083420 (1963-04-01), Tinfow
patent: 3148419 (1964-09-01), Straus et al.
patent: 3346994 (1967-10-01), Kesler
patent: 3382617 (1968-05-01), St. Aubin
patent: 3667164 (1972-06-01), Coppins

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