Deformable insulating panel for a goods-handling door, and a doo

Details Deformable insulating panel for a goods-handling door, and a doo Deformable insulating panel for a goods-handling door, and a doo

1992-11-03

1994-03-08

Purol, David M.

Flexible or portable closure, partition, or panel

Pleating type

Lazy-tong links pivot about axes parallel to panel

E06B 906

Patent

active

052919315

ABSTRACT:
A goods-handling door for separating different spaces in factories or warehouses includes a curtain that can be raised by being wound up or by being folded up concertina-like. The curtain is insulating both with respect to heat and with respect to noise, while being transparent so that one vehicle can be seen by another if they approach the door from opposite sides. The door includes two airtight flexible skins that lie parallel to each other and that sandwich spreaders between them. The spreaders are spaced apart and define intermediate spaces between the two skins. The spaces are filled with air, which provides the required insulation. Since the two skins are transparent, the door is transparent in the vicinity of the intermediate spaces.

REFERENCES:
patent: 2865446 (1958-12-01), Cole
patent: 4039019 (1977-08-01), Hopper
patent: 4375232 (1983-03-01), Heescher et al.
patent: 4397347 (1983-08-01), Brabant
patent: 4685986 (1987-08-01), Anderson
patent: 5078195 (1992-01-01), Schon

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