IP Library Granted Patent US 12,577,092
Granted Patent B2
US 12,577,092 · App. 17/959,770 · Granted Mar 17, 2026

Electrical insulation liner for aerial lift platform door

Inventors: Austin Graham (Kansas City, MO); Aaron Servais (Gower, MO)
Assignee: Altec Industries, Inc.
B66F17/006H01B3/441
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Quick Facts
Patent No.
US 12,577,092
App. No.
17/959,770
Granted
Mar 17, 2026
Kind
B2
Abstract

An aerial lift platform includes a door having one or more insulating liner layers. The door of the aerial lift platform is tightly bonded to a rim of an opening of an aerial lift platform by at least one nonconductive fastener, such that the one or more insulating liner layers of the door are tightly bonded to at least one insulting liner of the aerial lift platform, such that a complete insulating liner is formed around both the aerial lift platform and the door. The one or more insulating liner layers of the door are able to be connected to one or more attachments via one or more nonconductive fasteners.

Claims (39)

1 . A door for an aerial lift platform, comprising:

at least one insulating body covering an exterior surface of the door;

at least one air gap between the at least one insulating body and the aerial lift platform;

wherein the door is configured to fit into an opening in a side wall of the aerial lift platform; and

wherein the door is configured to attach to at least one insulating layer of the aerial lift platform via at least one fastener

wherein an overlap of the at least one insulating layer of the aerial lift platform extends into the opening in the side wall of the aerial lift platform, and wherein, when the door is in a closed position, an interior body of the door directly contacts the overlap of the at least one insulating layer.

2 . The door of claim 1 , wherein at least one step and/or at least one tooling tray is attached to and extends from an interior surface of the door.

3 . The door of claim 2 , wherein the at least one step and/or the at least one tooling tray is attached to the interior surface of the door via at least one attachment fastener.

4 . The door of claim 1 , wherein the at least one fastener comprises fiberglass-reinforced thermoplastic polyurethane, polycarbonate, polyethylene, polypropylene, and/or at least one fiber-reinforced thermosetting polymer.

5 . The door of claim 1 , the at least one insulating body comprises polyethylene, thermoplastic olefin (TPO), polycarbonate, polyurethane, and/or polypropylene.

6 . The door of claim 1 , wherein door includes at least one recessed handle, wherein, upon being pulled, the at least one recessed handle releases the door, allowing the door to be hingedly rotated with respect to the aerial lift platform.

7 . The door of claim 1 , further comprising:

one or more standoffs that separate the at least one insulating body of the door and the at least one insulating layer of the aerial lift platform,

wherein the at least one fastener includes a first bolt and a second bolt,

wherein the one or more standoffs are attached to the at least one insulating body of the door by a first bolt and attached to the at least one insulating layer of the aerial lift platform by a second bolt.

8 . A door for an aerial lift platform, comprising:

a first insulating layer covering forming an exterior surface of the door;

a second insulating layer interior to the first insulating layer; and

at least one step and/or at least one tooling tray attached to and extending from an interior surface of the door,

wherein the door is configured to fit into an opening in a side wall of the aerial lift platform, and

wherein the door is configured to attach to at least one insulating layer of the aerial lift platform via at least one fastener

one or more standoffs that separate the first insulating layer of the door and the at least one insulating layer of the aerial lift platform,

wherein the at least one fastener includes a first bolt and a second bolt,

wherein the one or more standoffs are attached to the first insulating layer of the door by a first bolt and attached to the at least one insulating layer of the aerial lift platform by a second bolt.

9 . The door of claim 8 , wherein the at least one step and/or the at least one tooling tray is attached to the interior surface of the door via at least one attachment fastener.

10 . The door of claim 8 , wherein the at least one fastener comprises fiberglass-reinforced thermoplastic polyurethane, polycarbonate, polyethylene, polypropylene, and/or at least one fiber-reinforced thermosetting polymer.

11 . The door of claim 8 , wherein the at least one insulating layer comprises polyethylene.

12 . The door of claim 8 , wherein door includes at least one recessed handle, wherein, upon being pulled, the at least one recessed handle releases the door, allowing the door to be hingedly rotated with respect to the aerial lift platform.

13 . The door of claim 8 , wherein an overlap of the at least one insulating layer of the aerial lift platform extends into the opening in the side wall of the aerial lift platform, and wherein, when the door is in a closed position, an interior body of the door directly contacts the overlap of the at least one insulating layer.

14 . The door of claim 8 , wherein the door further includes at least one air gap.

15 . A door for an aerial lift platform, comprising:

a first insulating layer forming an exterior surface of the door;

a second insulating layer interior to the first insulating layer;

wherein the door is configured to fit into an opening in a side wall of the aerial lift platform;

wherein an overlap of at least one insulating layer of the aerial lift platform extends into the opening in the side wall of the aerial lift platform, and wherein, when the door is in a closed position, the second insulating layer of the door directly contacts the overlap of the at least one insulating layer; and

wherein the door is configured to attach to at least one insulating layer of the aerial lift platform via at least one fastener.

16 . The door of claim 15 , wherein at least one step and/or at least one tooling tray is attached to and extends from an interior surface of the door.

17 . The door of claim 16 , wherein the at least one step and/or the at least one tooling tray is attached to the interior surface of the door via at least one attachment fastener.

18 . The door of claim 15 , wherein the at least one fastener comprises fiberglass-reinforced thermoplastic polyurethane, polycarbonate, polyethylene, polypropylene, and/or at least one fiber-reinforced thermosetting polymer.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 4, 2022
From: GRAHAM, AUSTIN; SERVAIS, AARON
To: ALTEC INDUSTRIES, INC.
Reel/Frame 061307/0760 →
Continuity (1)
Related Publication 20240109761A1 · Apr 4, 2024
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