Invention Grant
- Patent Title: Safety device for ladders
- Patent Title (中): 梯子安全装置
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Application No.: US14604050Application Date: 2015-01-23
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Publication No.: US09540875B2Publication Date: 2017-01-10
- Inventor: J. Nigel Ellis
- Applicant: J. Nigel Ellis
- Agency: Paul & Paul
- Main IPC: E06C7/42
- IPC: E06C7/42 ; E06C7/18 ; E06C7/48 ; E06C1/04 ; E06C7/50

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.
Public/Granted literature
- US20160215563A1 SAFETY DEVICE FOR LADDERS Public/Granted day:2016-07-28
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