Fire escape – ladder – or scaffold – Torso harness – Ladder-associated
Reexamination Certificate
2007-04-03
2007-04-03
Chilcot, Jr., Richard E. (Department: 3634)
Fire escape, ladder, or scaffold
Torso harness
Ladder-associated
C182S003000, C182S005000, C182S133000, C182S147000
Reexamination Certificate
active
10867323
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.
REFERENCES:
patent: 481252 (1892-08-01), Brainard
patent: 732808 (1903-07-01), Yeager et al.
patent: 936193 (1909-10-01), Turner
patent: 1849725 (1932-03-01), Quick
patent: 2538904 (1951-01-01), Herod
patent: 4090584 (1978-05-01), Wagner
patent: 4252214 (1981-02-01), Miller
patent: 4458781 (1984-07-01), Ellis et al.
patent: 4538703 (1985-09-01), Ellis et al.
patent: 4550804 (1985-11-01), Bummer
patent: 4997064 (1991-03-01), Motte et al.
patent: 5161639 (1992-11-01), Ice
patent: 6390952 (2002-05-01), Wilson
Armstrong Teasdale LLP
Chilcot Jr. Richard E.
General Electric Company
Maguire Lindsay M.
McGinness, Esq. James E.
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