Traversing hoists – Having counterweight or counterbalancing means – Counterweight movable relative to load support
Reexamination Certificate
2007-05-02
2010-12-07
Brahan, Thomas J (Department: 3654)
Traversing hoists
Having counterweight or counterbalancing means
Counterweight movable relative to load support
C212S258000, C212S276000
Reexamination Certificate
active
07845503
ABSTRACT:
A pipe-laying machine includes a self-propelled tracked vehicle, on one side of which is fitted a crane designed for lifting and laying pipes. The machine is also fitted with a counterweight constituted by a plate made of a heavy material that moves between a rest position in which it retracts fully into the vehicle and an operational position in which it projects from the vehicle on the opposite side to the crane. In the machine according to the invention, engine unit and control cab are located at each end of chassis, projecting slightly from it, to leave a free space in the central part of the vehicle for the installation of all the mechanisms designed for the movement and control of the crane.
REFERENCES:
patent: 1139915 (1915-05-01), Smulders
patent: 1497686 (1924-06-01), Johnson
patent: 1718434 (1929-06-01), Ronk
patent: 2674378 (1954-04-01), Meyer et al.
patent: 3029088 (1962-04-01), Loef
patent: 3814265 (1974-06-01), Miller
patent: 4083459 (1978-04-01), Allen
patent: 4132317 (1979-01-01), Arendt et al.
patent: 4817746 (1989-04-01), Purcell et al.
patent: 5031973 (1991-07-01), Gillet
patent: 5332110 (1994-07-01), Forsyth
patent: 6893189 (2005-05-01), Matsushita et al.
patent: 2001/0009241 (2001-07-01), Haringer
patent: 2003/0226697 (2003-12-01), Haringer
patent: 0 362 062 (1990-04-01), None
patent: 1 362 773 (2003-11-01), None
patent: 8 102 087 (1981-09-01), None
International Search Report dated Nov. 30, 2007, from corresponding PCT application.
Brahan Thomas J
Laurini Officine Meccaniche S.R.L.
Young & Thompson
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