Frost control system for high-speed mechanized doors
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United States of America Patent
Stats
-
Aug 21, 1990
Issued Date -
N/A
app pub date -
Oct 19, 1988
filing date -
Jan 15, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A frost control system for a freezer door which has a header disposed along the top of a doorway for supporting a downwardly depending curtain configured for movement between a closed, extended position and an open, retracted position. Heating elements are secured to the header to inhibit frost formation on the header. In an alternate embodiment, a heat lamp is disposed on the 'warm' side of the curtain proximate the doorway for directing radiant heat at the curtain to thereby inhibit the formation of frost thereon.
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