Traversing hoists – Having horizontally swinging boom or bridge – Having specific bearing structure
Reexamination Certificate
2011-02-22
2011-02-22
Brahan, Thomas J (Department: 3654)
Traversing hoists
Having horizontally swinging boom or bridge
Having specific bearing structure
Reexamination Certificate
active
07891508
ABSTRACT:
The present invention, in one embodiment, is a system for receiving and delivering into a base the radial loads imposed on a crane where the crane has a center post operably connected to the base with a generally cylindrical outer bearing surface and the crane rotates in at least a partial circle around the axis of the center post. The system comprises three or more radial load rollers arranged in a linked sequence in an arc at the outer bearing surface of the center post. Each radial load roller includes an axle and an axis of rotation that is generally parallel to the axis of the center post. The system also comprises a means for anchoring a first radial load roller at one end of the arc and anchoring a second radial load roller at the other end of the arc. The system also comprises links connecting each roller between the first and the second radial rollers to its adjacent rollers to form a flexible chain of said rollers. Finally, the system comprises a means for tensioning the linked radial load rollers to draw each radial load roller into rolling contact with the outer bearing surface and to equalize substantially the radial forces exerted by the radial rollers on the outer bearing surface.
REFERENCES:
patent: 13976 (1855-12-01), Burnett
patent: 1582274 (1926-04-01), Kaltenbach
patent: 2069471 (1937-02-01), Baker
patent: 2414573 (1947-01-01), Wagner et al.
patent: 2512477 (1950-06-01), Bowes
patent: 2966752 (1961-01-01), Wampach
patent: 3292981 (1966-12-01), Zaugg
patent: 3651951 (1972-03-01), Murakami
patent: 3967867 (1976-07-01), Richardson
patent: 3977531 (1976-08-01), Brewer
patent: 4061230 (1977-12-01), Goss et al.
patent: 4184600 (1980-01-01), Goss et al.
patent: 4216870 (1980-08-01), Bonneson et al.
patent: 4223961 (1980-09-01), Martinez
patent: 4271578 (1981-06-01), Robinson et al.
patent: 4271970 (1981-06-01), Miller et al.
patent: 4354606 (1982-10-01), Morrow et al.
patent: 4395160 (1983-07-01), deJong
patent: 4446977 (1984-05-01), McClain
patent: 4513869 (1985-04-01), Goudy
patent: 4524875 (1985-06-01), Jamieson
patent: 4648729 (1987-03-01), Jones
patent: 4652177 (1987-03-01), Gunther, Jr. et al.
patent: 4688688 (1987-08-01), Volakakis et al.
patent: 4723852 (1988-02-01), Ehret
patent: 4787524 (1988-11-01), Cobb, III et al.
patent: 5028194 (1991-07-01), Robinson
patent: 5048642 (1991-09-01), Lloyd
patent: 5309816 (1994-05-01), Weyer
patent: 5310067 (1994-05-01), Morrow
patent: 5328040 (1994-07-01), Morrow
patent: 5487478 (1996-01-01), Morrow
patent: 5762017 (1998-06-01), Groves
patent: 5803613 (1998-09-01), Riedel et al.
patent: 5901864 (1999-05-01), Morrow
patent: 5971619 (1999-10-01), Bourgeois-Jacquet
patent: 6367390 (2002-04-01), Okubo et al.
patent: 6422408 (2002-07-01), Lissandre et al.
patent: 6450546 (2002-09-01), Montgomery et al.
patent: 6491174 (2002-12-01), Day
patent: 6502524 (2003-01-01), Hooper
patent: 6530691 (2003-03-01), Laenge
patent: 6557713 (2003-05-01), Laenge
patent: 6592297 (2003-07-01), Frijns et al.
patent: 2002/0079278 (2002-06-01), Sanders et al.
patent: 2002/0166698 (2002-11-01), Beato
patent: 2003/0070600 (2003-04-01), Hooper
patent: 12 00 216 (1965-09-01), None
patent: 769 741 (1934-08-01), None
patent: 1337-338 (1985-10-01), None
Brahan Thomas J
Dorsey & Whitney LLP
Hemphill, Esq. Stuart R.
Hydralift AmClyde, Inc.
LandOfFree
Crane radial support bearing does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Crane radial support bearing, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Crane radial support bearing will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2621364