Device for climbing on extended supporting elements, such as...

Details Device for climbing on extended supporting elements, such as... Device for climbing on extended supporting elements, such as...

2006-07-11

2006-07-11

Chin-Shue, Alvin (Department: 3634)

Fire escape, ladder, or scaffold

Pole or strand grasping-type climber

C182S142000

Reexamination Certificate

active

07073628

ABSTRACT:
The device for climbing a pair of ropes (1) includes upper and lower clasps (4,6) for clamping each rope and connecting elements for holding a climber, which include a movable or solid seat (7, 12) or harness (23). Each clasp (4,6) has a housing (21); a yoke (3) in the housing (21) provided with an interior space having beveled inclines widening downward; cotters (10) positioned on opposite sides of the rope (1) in the interior space; rollers (11) arranged movably, but securably, between the cotters (10) and the beveled inclines; a compression spring (20) bearing on an upper end of the yoke (3); and a resilient time servo-component (9) arranged at a lower end of the yoke. The resilient time servo-component (9) acts on the yoke so that the clasp (4,6), when relieved, automatically clamps the rope after a predetermined time interval, thus protecting the climber.

REFERENCES:
patent: 1114832 (1914-10-01), Whitney
patent: 1117800 (1914-11-01), Davidson
patent: 1754132 (1930-04-01), Van Bekkum
patent: 1964995 (1934-07-01), McGlaughlin
patent: 3335469 (1967-08-01), Shand
patent: 3677367 (1972-07-01), Shotmeyer
patent: 3926278 (1975-12-01), Molnar et al.
patent: 19643455 (1998-04-01), None
patent: 19726035 (1998-12-01), None

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