Hook-type bottom block

Details Hook-type bottom block Hook-type bottom block

2006-10-20

2008-12-30

Marcelo, Emmanuel M (Department: 3654)

Implements or apparatus for applying pushing or pulling force

Device or member for contacting and guiding moving cable

Including rotatable, cable contacting, pulley wheel element

C254S401000, C294S082110, C294S086410

Reexamination Certificate

active

07469882

ABSTRACT:
The present disclosure relates to a hook-type bottom block for a crane, preferably a mobile crane, comprising a lower part to which the hook is fastened in a rotatable and tiltable manner and an upper part in which rollers are supported via which at least one hoist rope can be sheared in. In accordance with the present disclosure, the rollers are combined in a plurality of roller sets connectable to one another in a modular manner.

REFERENCES:
patent: 484038 (1892-10-01), Morgan
patent: 2973942 (1961-03-01), Schaper
patent: 3794185 (1974-02-01), Kroll et al.
patent: 3936034 (1976-02-01), Larralde
patent: 4721286 (1988-01-01), Hey et al.
patent: 5476247 (1995-12-01), Melder
patent: 6386516 (2002-05-01), Lenders
patent: 6991275 (2006-01-01), Zollondz et al.
patent: 2004/0183061 (2004-09-01), Winter et al.
patent: 28 53 404 (1984-10-01), None
patent: 101 10 302 (2002-07-01), None
patent: 2 179 908 (1987-03-01), None

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