Telescopic boom of a crane

Details Telescopic boom of a crane Telescopic boom of a crane

2006-05-16

2006-05-16

Brahan, Thomas J. (Department: 3654)

Traversing hoists

Adjustable to transport or nonuse position

Collapsible or foldable boom

C052S118000, C052S149000, C212S347000

Reexamination Certificate

active

07044315

ABSTRACT:
The within invention concerns a telescopic boom of a crane with a pivot section, telescoping sections that telescope out of the pivot section, and bracing that has at least one guy support housed on one of the sections and a guy cable supported on one of these guy supports. According to the invention, the telescopic crane is characterized by the presence of a guy cable running from the guy support and a cable lock that can be locked to said guy cable, in which the cable lock can be moved by means of an actuator, particularly an hydraulic cylinder, in the longitudinal direction of the guy and the guy cable can be pre-stressed by moving the cable lock.

REFERENCES:
patent: 981268 (1911-01-01), Hurd
patent: 4850161 (1989-07-01), McGinnis
patent: 6550624 (2003-04-01), Irsh et al.
patent: 3113763 (1982-10-01), None
patent: 20002748 (2000-08-01), None
patent: 10022658 (2001-03-01), None
patent: 20020974 (2002-04-01), None
patent: 10062517 (2002-06-01), None
patent: 10129022 (2003-01-01), None

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