Inflatable door seal

Details Inflatable door seal Inflatable door seal

2003-09-19

2009-08-25

Redman, Jerry (Department: 3634)

Movable or removable closures

Closure seal; e.g., striker gasket or weatherstrip

Inflatable or fluid pressure responsive

C049S118000

Reexamination Certificate

active

07578097

ABSTRACT:
A door for a cold storage locker or other applications includes an inflatable or fluid-filled seal system. The seal system comprises a network of pliable tubular seals that expand as air or another fluid is forced air through the seals. Expansion of the seals provides a more positive seal. To inhibit frost from accumulating near the seals, the seals are kept relatively warm by continuously circulating fluid through the seals regardless of whether the door is open or closed. In some cases, the fluid within the seals is heated.

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