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US 2026/0071483 A1Published application
Door shoe
AssigneeASSA ABLOY Accessories and Door Controls Group, Inc.
InventorsEllen Amanda Swofford, Gary Lawrence Higginbotham, JR.
Life of this patent
Estimating the term…
Abstract
A door system having a door shoe including a first shoe member and a second shoe member that provide a thermal break between the members, which reduces heat transfer between the members. One or more gaskets may be operatively coupled to the first shoe member or the second shoe member. The first shoe member and the second shoe member can be operatively coupled to the door to cover different sized gaps located between the bottom edge of the door and a floor. As such, the door shoe disclosed herein may be used to cover different size gaps, provide a thermal break between the members to aid in fire resistance, and be easily installed on doors without having to remove the door from the frame.
Claims15
A door shoe comprising:
- a first shoe member configured to be operatively coupled to a first face of a door, wherein the first shoe member is an L-shaped member comprising:
- an upper flange;
- and
- a lower flange having a first channel and a second channel on an outer surface of the lower flange;
- a first gasket operatively coupled to the first channel;
- a second gasket operatively coupled to the second channel;
- an outer intumescent portion operatively coupled to the outer surface of the lower flange between the first channel having the first gasket and the second channel having the second gasket, wherein the outer intumescent is exposed to a floor or a threshold and fails to be covered by the first gasket and the second gasket before being exposed to a fire;
- and
- an inner intumescent portion operatively coupled to an inner surface of the lower flange opposite the outer intumescent portion on the outer surface of the lower flange;
- wherein the first gasket and the second gasket comprise two or more legs, wherein the two or more legs are configured to engage with the floor or the threshold;
- and
- a second shoe member configured to be operatively coupled to a second face of the door;
- wherein the first shoe member and the second shoe member are configured to be operatively coupled to the door with a space formed between the lower flange of the first shoe member and the second shoe member to form a thermal break between the first shoe member and the second shoe member;
- wherein the first shoe member and the second shoe member are made as extruded aluminum members having a single layer being a uniform type of material;
- and
- wherein the door shoe has a UL90 fire rating.
13 more elements
A door system comprising:
- a door;
- and
- a door shoe operatively coupled to the door, wherein the door shoe comprises:
- a first shoe member operatively coupled with a first face of the door, wherein the first shoe member comprises an L-shaped member comprising:
- an upper flange;
- and
- a lower flange having a first channel and a second channel on an outer surface of the lower flange;
- a first gasket operatively coupled to the first channel;
- a second gasket operatively coupled to the second channel;
- an outer intumescent portion operatively coupled to the outer surface of the lower flange between the first channel having the first gasket and the second channel having the second gasket, wherein the outer intumescent is exposed to a floor or a threshold and fails to be covered by the first gasket and the second gasket before being exposed to a fire;
- an inner intumescent portion operatively coupled to an inner surface of the lower flange opposite the outer intumescent portion on the outer surface of the lower flange;
- and
- wherein the first gasket and the second gasket comprise two or more legs, wherein the two or more legs are configured to engage with the floor or the threshold;
- and
- a second shoe member operatively coupled with a second face of the door;
- wherein the first shoe member and the second shoe member are operatively coupled to the door with a space formed between the lower flange of the first shoe member and the second shoe member to form a thermal break between the first shoe member and the second shoe member;
- wherein the first shoe member and the second shoe member are made as extruded aluminum members having a single layer of material;
- and
- wherein the door shoe has a UL90 fire rating.
16 more elements
A method of installing a door shoe to a door, the method comprising:
- assembling a first shoe member to a first face of the door using one or more door shoe connectors, wherein the first shoe member is an L-shaped member comprising:
- an upper flange;
- and
- a lower flange having a first channel and a second channel on an outer surface of the lower flange;
- a first gasket operatively coupled to the first channel;
- a second gasket operatively coupled to the second channel;
- an outer intumescent portion operatively coupled to the outer surface of the lower flange between the first channel having the first gasket and the second channel having the second gasket, wherein the outer intumescent is exposed to a floor or a threshold and fails to be covered by the first gasket and the second gasket before being exposed to a fire;
- an inner intumescent portion operatively coupled to an inner surface of the lower flange opposite the outer intumescent portion on the outer surface of the lower flange;
- and
- wherein the first gasket and the second gasket comprise two or more legs, wherein the two or more legs are configured to engage with the floor or the threshold;
- and
- assembling a second shoe member to a second face of the door using one or more door shoe connectors;
- wherein the first shoe member and the second shoe member have a space between the lower flange of the first shoe member and the second shoe member to form a thermal break;
- wherein the first shoe member and the second shoe member are made extruded aluminum members having a single layer being a uniform type of material;
- and
- wherein the door shoe has a UL90 fire rating.
13 more elements
Dependencies are inferred from the claim text.