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US 10,329,817 B2Granted
Insulated door panels
AssigneeRite-Hite Holding Corporation
InventorPerry W. Knutson
Life of this patent
Estimating the term…
Abstract
Example insulated pliable door panels or curtains include various internal vapor barriers. The vapor barriers have a relatively high water vapor transmission rate that inhibits water vapor from permeating through the door panel. With such vapor barriers, outer sheets of the door panel can be made of polyurethane or other tough materials that might have an inadequate water vapor transmission rate. In some examples, the vapor barrier encircles or encloses a thermally insulating pad. In some examples, the door panel includes a sleeve or pocket that holds the vapor barrier in place. Some examples include means for draining water that might condense within the door panel.
Claims19
A door comprising:
- a first track;
- a second track, and
- flexible door panel to extend between the first and second tracks, the flexible door panel to bend due to movement of the flexible door panel along a non-linear travel path between an open position and a closed position relative to a doorway, the flexible door panel including:
- a first pliable sheet made of a first polymeric material, the first sheet having a first water vapor transmission rate;
- a second pliable sheet made of a second polymeric material, the second sheet being generally parallel to the first sheet when the door panel is in the closed position, the second sheet having a second water vapor transmission rate;
- a thermally insulating pad between the first sheet and the second sheet, the thermally insulating pad being resiliently compressible;
- a third pliable sheet made of a third polymeric material having a third water vapor transmission rate;
- and
- a fourth pliable sheet having a fourth water vapor transmission rate,
- wherein the first and third sheets define a pocket therebetween to hold the fourth pliable sheet having the fourth water vapor transmission rate, the fourth water vapor transmission rate being lower than the first water vapor transmission rate, the fourth water vapor transmission rate being lower than the second water vapor transmission rate, the third water vapor transmission rate being greater than the fourth water vapor transmission rate of the fourth sheet, and the third sheet being interposed between the fourth sheet and the thermally insulating pad.
7 more elements
A flexible door panel movable between an open position and a closed position relative to a doorway, the door panel comprising:
- a first pliable sheet made of a first polymeric material;
- a second pliable sheet made of a second polymeric material, the second sheet coupled to the first sheet at a perimeter of the first and second sheets, the second sheet being generally parallel to the first sheet when the door panel is in the closed position;
- a plurality of baffles extending longitudinally across a width of the first sheet and a width of the second sheet, the plurality of baffles including first longitudinal edges coupled to the first sheet and second longitudinal edges coupled to the second sheet to define a plurality of chambers between the first sheet and the second sheet, the first longitudinal edges being closer to the first sheet than the second longitudinal edges are to the first sheet when the door panel is in the closed position;
- a plurality of thermally insulating pads disposed within the plurality of chambers, a first thermally insulating pad of the plurality of thermally insulating pads being between the first sheet and the second sheet, the first thermally insulating pad being resiliently compressible;
- a third sheet between the first sheet and the first thermally insulating pad;
- and
- a fourth pliable sheet made of a fourth polymeric material, the fourth sheet being joined to at least one of the first sheet or at least one of the plurality of baffles to define a pocket between the fourth sheet and the first sheet, the third sheet being disposed within the pocket, the fourth sheet being interposed between the third sheet and the first thermally insulating pad;
- wherein the first sheet has a first water vapor transmission rate, the second sheet has a second water vapor transmission rate, and the third sheet has a third water vapor transmission rate, the third water vapor transmission rate being lower than the first water vapor transmission rate, and the third water vapor transmission rate being lower than the second water vapor transmission rate.
5 more elements
A door, comprising:
- a first sheet to span a width and a height of a doorway;
- a second sheet to span the width and the height of the doorway, the second sheet coupled to the first sheet;
- a thermally insulating pad disposed between the first and second sheets;
- a third sheet adjacent the thermally insulating pad to substantially prevent water vapor from permeating the thermally insulating pad, the third sheet being positioned between the thermally insulating pad and the first sheet;
- and
- a fourth sheet affixed to the first sheet along a first elongate region and along a separate second elongate region spaced apart from the first elongate region, the first and second elongate regions to extend in a direction across the width of the doorway when the door is in a closed position, the first sheet and the fourth sheet defining a pocket between the first and second elongate regions, the third sheet being held in place within the pocket;
- wherein the first sheet has a first water vapor transmission rate, the second sheet has a second water vapor transmission rate, and the third sheet has a third water vapor transmission rate, the third water vapor transmission rate being lower than the first water vapor transmission rate, and the third water vapor transmission rate being lower than the second water vapor transmission rate.
4 more elements
Dependencies are inferred from the claim text.