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This is a record of a document published elsewhere, first published by the United States Patent and Trademark Office, as US-5740881-A, on 21 April 1998. OpenTechnical did not first disclose it. The identifier, hashes and timestamps below record what this library served and when, not when the material became public. View the original.

OT-2026-000003221

Safety device for detecting improper positioning of a ladder

Published
Permanent URL
Classification
Tools & Tooling › Clamping Tools
Original source
US-5740881-A, the United States Patent and Trademark Office, 21 April 1998
Document SHA-256
d71b7d26b6f8342830184234c394e4b262761d9b326ad3a73567e8a4ccf03843

A safety device for detecting improper positioning of a ladder including an alarm connected to an energy source. A longitudinal and lateral level indicator switch are connected between the alarm and energy source with a first orientation for precluding power transfer to the alarm when the ladder is orientated in a safe disposition. The switches further have a second orientation for allowing power transfer to the alarm when the ladder is oriented in a dangerous disposition. Finally, an actuator switch is included for activating the device solely during use.

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Abstract

A safety device for detecting improper positioning of a ladder including an alarm connected to an energy source. A longitudinal and lateral level indicator switch are connected between the alarm and energy source with a first orientation for precluding power transfer to the alarm when the ladder is orientated in a safe disposition. The switches further have a second orientation for allowing power transfer to the alarm when the ladder is oriented in a dangerous disposition. Finally, an actuator switch is included for activating the device solely during use.

1. Drawings

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Publication information

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Citation

OpenTechnical Publication OT-2026-000003221, “Safety device for detecting improper positioning of a ladder,” published September 15, 2026 at 19:51:35 UTC, https://opentechnical.org/p/OT-2026-000003221.

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