Roof drain de-icer apparatus and method
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United States of America Patent
Stats
-
Nov 26, 2002
Grant Date -
Dec 6, 2001
app pub date -
Aug 7, 2001
filing date -
May 26, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A de-icer formed of a solid block of a pressed, granulated salt has at least a top portion water-proofed to prevent rapid deterioration due to precipitation. An exposed bottom surface is in contact with the upper surface of a flat, sloped roof to provide wicking absorption of water flowing down the roof into the salt. Absorption of water by the salt leads to release of the resulting saline solution to the surface of the roof, preventing formation of ice on the roof downstream of the de-icer and in the roof drain. The de-icer may be maintained in place on the surface of the roof by an adhesive tape, or by its own weight.
First Claim
Family
International Classification(s)
Cited Art Landscape
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