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US Patent 7198134 Method and apparatus for assisting multiple climbers

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Patent
Patent
1

Patent attributes

Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
1
Patent Number
71981341
Patent Inventor Names
David Lawrence LeMieux1
Date of Patent
April 3, 2007
1
Patent Application Number
108673231
Date Filed
June 14, 2004
1
Patent Primary Examiner
‌
Richard E. Chilcot, Jr.
1
Patent abstract

A method is provided for assisting multiple climbers in ascending and descending the same ladder using an apparatus that includes a plurality of counterweights and a rigging system coupled to the counterweights, the rigging system includes at least two subsystems, each subsystem includes at least one cable, at least one pulley, and at least one harness. The method includes configuring a first subsystem to assist a first climber in ascending and descending the ladder, configuring a second subsystem to assist a second climber in ascending and descending the ladder, coupling a first harness to the first climber, coupling a second harness to the second climber, using the first subsystem to assist the first climber in ascending and descending the ladder, and using the second subsystem to assist the second climber in ascending and descending the ladder.

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