Door sealing system
First Claim
1. A sealing system for an inwardly swinging door comprising:
- a threshold member having an elongated open-ended channel defined by an exterior wall having a vertically extending portion of a given height serving as a door stop and an inclined lower portion meeting a spaced vertically extending interior wall of lesser height;
a first resilient sealing plate vertically depending from bottom portions of the door and having a given length, operative to overlappingly contact the interior channel wall to provide a primary air seal between the exterior and the interior;
a second resilient sealing plate vertically depending from bottom portions of the door for overlappingly contacting the exterior channel wall, said second sealing plate having a shorter length than said first sealing plate, the extent of the projections of said walls and plates being such that the plates come into contact with their respective walls free from interference with other portions of the threshold, and such that the vertical overlap between the plates and walls provides continuous contact therebetween to automatically accomodate for misalignment between the door and threshold; and
venting means in the threshold member including passageways from frontal portions thereof through said lower portion of the exterior channel wall, adapted for equalizing the pressure differential between the channel and the exterior air to thereby minimize seepage of moisture under the second seal while the first seal blocks the air from entering the interior.
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Accused Products
Abstract
A sealing system for an entry door incorporates a threshold member having a longitudinally extending open-ended channel in its upper surface. The sweep utilizes a double vertical seal design which encloses the channel when the door is shut. The first seal contacts exterior portions of the channel whereas the second seal contacts interior portions of the channel. The channel is vented through the threshold so that the pressure on both sides of the first seal is equalized to minimize water seepage, while the second seal completely blocks the outside air from the interior of the building. The threshold is preferably of a two piece construction which may be snapped together to thereby minimize manufacturing and installation costs.
127 Citations
15 Claims
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1. A sealing system for an inwardly swinging door comprising:
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a threshold member having an elongated open-ended channel defined by an exterior wall having a vertically extending portion of a given height serving as a door stop and an inclined lower portion meeting a spaced vertically extending interior wall of lesser height; a first resilient sealing plate vertically depending from bottom portions of the door and having a given length, operative to overlappingly contact the interior channel wall to provide a primary air seal between the exterior and the interior; a second resilient sealing plate vertically depending from bottom portions of the door for overlappingly contacting the exterior channel wall, said second sealing plate having a shorter length than said first sealing plate, the extent of the projections of said walls and plates being such that the plates come into contact with their respective walls free from interference with other portions of the threshold, and such that the vertical overlap between the plates and walls provides continuous contact therebetween to automatically accomodate for misalignment between the door and threshold; and venting means in the threshold member including passageways from frontal portions thereof through said lower portion of the exterior channel wall, adapted for equalizing the pressure differential between the channel and the exterior air to thereby minimize seepage of moisture under the second seal while the first seal blocks the air from entering the interior. - View Dependent Claims (2, 3, 4, 5, 6)
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7. In an apparatus for weather sealing a door unit, said unit including a door, a frame, and a threshold;
- wherein the improvement comprises;
means defining a longitudinally extending open-ended channel in an upper surface of the threshold, said channel having a vertically extending interior wall, a spaced vertically extending exterior wall, and a bottom portion; sweep means attached to the bottom of the door and including at least one downwardly projecting resilient sealing plate for contacting the interior channel wall; and side sealing means attached to the frame and disposed near the ends of said threshold, said side sealing means including an inverted V-shaped notch in lower portions thereof into which said interior channel wall is nested, adapted for diverting water away from the sealing plate and channel wall interface when the door is shut to thereby prevent water from seeping under the sealing plate and into the interior. - View Dependent Claims (8, 9, 10, 11, 12)
- wherein the improvement comprises;
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13. In an apparatus for sealing the latch side of a door unit, with said unit including a door, a frame, a threshold, and a sealing device on the bottom portion of the door for contacting the threshold, wherein the improvement comprises:
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a resilient rubber side seal affixed to the latch side of the frame mediate the ends of the threshold; means on the side seal for diverting water away from the sealing device-threshold interface when the door is shut; and a shield covering said side seal and being affixed along one edge to the frame thereby providing a ramp for guiding the door into pressure contact with the rubber side seal. - View Dependent Claims (14, 15)
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Specification