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US Patent 9540875 Safety device for ladders

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Is a
Patent
Patent

Patent attributes

Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
Patent Number
9540875
Date of Patent
January 10, 2017
Patent Application Number
14604050
Date Filed
January 23, 2015
Patent Citations Received
‌
US Patent 11828107 Ladder platform system
0
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US Patent 11982127 Ladder safety device
0
‌
US Patent 11913283 Ladder walkthrough
0
Patent Primary Examiner
‌
Daniel Cahn
Patent abstract

Walk-through safety devices for ladders meeting ANSI and OSHA standards are positioned at the top end of the ladder and are comprised of two, juxtapose-position, mirror image members. One each is mounted on a respective ladder side rail, Each member includes a sleeve (or rectangular tube) which slides down over a respective ladder side rail, a pressure bar which is tightened against the side rail with a knob operated screw, a pivoting engaging lock plate, and a lock plate tab cover plate. A horizontal hand grip framework is held outboard of the ladder side rails vertically upward, being at an angle of about 14.5 degrees upward from the longitudinal axis of the sleeve and side rail when resting against a structure. The framework is held in that position by a flared tube which is bent in two directions.

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