Traversing hoists – Having means facilitating assembly or disassembly – Of counterweight from hoist
Reexamination Certificate
2008-04-03
2010-02-09
Brahan, Thomas J. (Department: 3654)
Traversing hoists
Having means facilitating assembly or disassembly
Of counterweight from hoist
C212S195000
Reexamination Certificate
active
07658293
ABSTRACT:
A counterweight installation device includes: a weight support unit provided on a rear end of a body frame of a construction machine; a weight mounting unit disposed on a counterweight; a pin member for mounting the counterweight adapted to move between a first position at which the weight mounting unit is mounted on the weight support unit and a second position at which the weight mounting unit is dismounted from the weight support unit; and a rod device, one end of which is linked with the pin member and an other end of which extends so as to project to an outside of the counterweight, adapted to move the pin member between the first position and the second position by operation at the other end thereof.
REFERENCES:
patent: 3891095 (1975-06-01), Symmank
patent: 3902735 (1975-09-01), Bertram et al.
patent: 4141455 (1979-02-01), Henderson et al.
patent: 4363412 (1982-12-01), Patel et al.
patent: 5088882 (1992-02-01), Lovitt, Jr.
patent: 5156215 (1992-10-01), Jensen
patent: 5332353 (1994-07-01), Arnold
patent: 5348171 (1994-09-01), Haman et al.
patent: 5462309 (1995-10-01), Jeffers et al.
patent: 6471245 (2002-10-01), Schott
patent: 6533319 (2003-03-01), Denby et al.
patent: 6988560 (2006-01-01), Bay
patent: 7168740 (2007-01-01), Kobayashi et al.
patent: 2003/0222447 (2003-12-01), Powell
patent: 2006/0103125 (2006-05-01), Yamamoto
patent: 2-276979 (1990-11-01), None
patent: 10-195927 (1998-07-01), None
patent: 11-200421 (1999-07-01), None
patent: 2000-72383 (2000-03-01), None
patent: 2002-194774 (2002-07-01), None
patent: 2006-44948 (2006-02-01), None
Sugiura Yoshimasa
Yamagata Koji
Yamamoto Kazunori
Brahan Thomas J.
Crowell & Moring LLP
Hitachi Sumitomo Heavy Industries Construction Crane Co., Ltd.
LandOfFree
Installation device for counterweight does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Installation device for counterweight, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Installation device for counterweight will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4174547