Flexible or portable closure – partition – or panel – Plural and/or with rigid closure – Roll type
Patent
1981-06-04
1983-01-18
Caun, Peter M.
Flexible or portable closure, partition, or panel
Plural and/or with rigid closure
Roll type
E06B 908
Patent
active
043687717
ABSTRACT:
Movable insulation apparatus is disclosed for selectably covering and uncovering an opening, such as a window to control the amounts of heat energy and light transmitted through the opening. The opening has a foot, a head situated above the foot, and height and width. The movable insulation apparatus comprises at least one sheet having a leading and a trailing end, width at least equal to the width of the opening and length at least equal to twice the height of the opening. A retracting roller is mounted rotatably to span the width of the opening at the foot. The trailing end of the sheet is attached to the roller and the leading end of the sheet is secured in the region of the foot of the opening. A motor urges the roller in one angular direction to roll the sheet thereon. A supporting device for supporting the sheet intermediate its ends, spans the width of the opening, and is mounted for reciprocal movement between an open position in the region of the foot, in which the sheet is retracted onto the roller to uncover the opening, and a closed position in the region of the head of the opening in which the sheet is drawn to cover the opening. The sheet passes around the support device to define two sheet layers extending in spaced relation between the foot and the support rod. Additional sheets may be included, in which case the support device is equipped with structure to space all sheet layers apart, to define a dead air space between each pair of such layers. The support is further mounted for pivoted movement about its horizontal axis to accommodate limited movement of the sheet therearound and prevent abrasion of the sheet. A frame is also provided to prevent air flow from occurring past the sheet layers to the opening when the support device is in the closed position. This movable insulation apparatus provides high thermal resistance when fully closed and even when partially opened.
REFERENCES:
patent: 1442255 (1923-01-01), Doner
patent: 2341123 (1944-02-01), Schweller
patent: 4039019 (1977-08-01), Hopper
patent: 4151871 (1979-05-01), Ryan
patent: 4187896 (1980-02-01), Shore
patent: 4275645 (1981-06-01), Ruff
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