Show case for keeping and exhibiting objects

Details Show case for keeping and exhibiting objects Show case for keeping and exhibiting objects

B - Operations, Transporting

08

B

98/2, 312/39

B08B 15/02 (2006.01) A47F 3/00 (2006.01)

Patent

CA 1327225

ABSTRACT OF THE DISCLOSURE Show case for keeping and exhibiting objects, the sides, bottom and cover construction of which enclose the interior of the show case more or less hermetically. The show case includes a filter system comprising preferably dust and/or gas protection filters which is disposed in an air vent enabling clean air to flow into or to be directed into the show case. When air flows in automatically due to changed pressure and temperature conditions inside and outside the show case, the show case is vented preferably through an air vent formed as an outlet valve. When it is impossible to sufficiently seal the show case, it will be ventilated forcibly with the least possible quantity of air by means of a pump or ventilating device connected to the interior of the show case through the filter means, which quantity of air is related to the air volumes flowing automatically into the show case when the air pressure increases suddenly or the temperature varies.

591549

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