Fire-rated sliding glass elevator door
AssigneeEP Acquisition, Inc.
InventorsJulie Ann Clauson, Jashan Deshan Eison, Mark Gabriel Hamilton, Chad Joseph Norberg, William Theodore Sillman, Leo Joseph Tomperi
Life of this patent
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Abstract
A fire-rated sliding elevator glass door is provided. The door includes a face panel, a liner, a fire-rated glass panel, and a retainer that retains the glass panel in the door frame. The elevator door is configured to pass a 90-minute fire rating test. The elevator door can be implemented as a single-speed side open elevator door, a single-speed center open elevator door, a two-speed side opening sliding elevator door, or a two-speed center opening sliding elevator door. A method of constructing the fire-rated elevator door is provided.
Claims20
An elevator hoistway door comprising:
- a face panel framing a void;
- a liner framing a void, wherein the face panel and the liner define a door core thickness;
- a fire-rated glass panel having a thickness that is greater than the door core thickness, the glass panel having a hoistway-facing surface;
- one or more retainers secured to the hoistway-facing surface of the glass panel and to a hoistway-facing surface of the liner.
A method of constructing a fire-rated elevator door including a face panel framing a void, a liner framing a void, a fire-rated glass panel, and one or more retainers, the method comprising:
- aligning the face panel void with the liner void to form a door frame;
- fastening the face panel to the liner;
- applying a first bonding tape to a hoistway-facing surface of the face panel or to a corridor-facing surface of the glass panel;
- after the step of applying the first bonding tape, inserting the glass panel through the liner void and into an interior of the door frame;
- bonding the hoistway-facing surface of the face panel to the corridor-facing surface of the glass panel, wherein the glass panel protrudes beyond a hoistway-facing side of a door core of the elevator door, wherein the face panel and the liner define a door core thickness and the fire-rated glass panel has a thickness that is greater than the door core thickness;
- applying a second bonding tape to a hoistway-facing surface of the glass panel or to a glass-facing surface of a retainer;
- bonding the hoistway-facing surface of the glass panel to the glass-facing surface of the retainer;
- and
- fastening a liner-facing surface of the retainer to a hoistway-facing surface of the liner.
Dependencies are inferred from the claim text.