US 12,662,821 B1Granted

Door and retractable ladder assembly

OwnerSilvia Janeth Guzman Benavides, Cecilia Judith Puentes Sanchez +1inventors

InventorsSilvia Janeth Guzman Benavides, Cecilia Judith Puentes Sanchez, Carlos Andres Rodriguez Garza

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Abstract

A door and retractable ladder assembly for providing access to and from an upper story of a building includes a frame that is configured to be mounted within an opening defined by a ceiling structure, a retractable ladder assembly, and a door. To facilitate improved sealing of the opening, the frame preferably includes a recess that is coextensive with and is configured to receive the perimeter of the door and an outer cavity that is configured to receive a weatherstripping material. The frame includes a plurality of frame members. The frame members can be cut at predetermined angles so that the frame includes a plurality of miter joints through which connectors configured to connect adjacently positioned frame members can extend. A section of the retractable ladder can be mounted directly to an inner surface of the door to eliminate the need for intermediate connection means.

Claims11

Dependent claims

A door and retractable ladder assembly, comprising:

a frame configured to be mounted within an opening defined by a ceiling structure of a building, the frame defining a central opening for providing passage through the frame, and the frame including a plurality of metal frame members formed by extrusion;
a door mounted to the frame, the door configured to transition between a closed position to cover the central opening defined by the frame and an open position to uncover the central opening defined by the frame;
and
a retractable ladder including a plurality of ladder sections, the plurality of ladder sections including a first ladder section directly mounted to an inner surface of the door, and the first ladder section including
a first rail and a second rail, the first rail and the second rail each being integrally formed and each including:
(i) a base mounted to the inner surface of the door and continuously extending along an entire length of each of the first rail and the second rail;
(ii) a main body extending upwardly from the base and continuously extending along an entire length of each of the first rail and the second rail;
and (iii) a pair of arms, the pair of arms extending outwardly from the main body and in parallel with the inner surface of the door to define a cavity that is spaced a predetermined distance from the base and in which one or more steps are received, and
the one or more steps extending between the first rail and the second rail.

6 more elements

Dependencies are inferred from the claim text.