Conveyors: power-driven – Conveyor system for moving a specific load as a separate unit
Reexamination Certificate
2006-01-06
2009-12-15
Crawford, Gene (Department: 3651)
Conveyors: power-driven
Conveyor system for moving a specific load as a separate unit
C198S463300
Reexamination Certificate
active
07631748
ABSTRACT:
A continuous sharp chain conveyor system is disclosed wherein a workpiece may be elevated from the sharp chain conveyor while the workpiece is transported down the sharp chain conveyor such that the workpiece may be rotated to maintain the workpiece in an optimized position. The system includes a sharp chain which engages the workpiece, a first and a second skid positionable parallel alignment with the sharp chain to elevate and lower the workpiece relative to the sharp chain, and pairs of rotatable positioning drive rolls positionable along the sharp chain to rotate the workpiece when the workpiece is elevated. The system may also include a plurality of hold-down rolls to maintain the workpiece on the sharp chain by exerting downward pressure on the workpiece. The pairs of rotatable positioning drive rolls may cooperatively displace the workpiece laterally and/or independently angularly displace the workpiece relative to the longitudinal centreline of the sharp chain.
REFERENCES:
patent: 1252894 (1918-01-01), Fitzgerald
patent: 3621972 (1971-11-01), Reuter
patent: 3738404 (1973-06-01), Walker
patent: 3844399 (1974-10-01), Sellers et al.
patent: 3903771 (1975-09-01), Fritz et al.
patent: 4078592 (1978-03-01), Standal
patent: 4144782 (1979-03-01), Lindstrom
patent: 4205568 (1980-06-01), Foster
patent: 4259907 (1981-04-01), Schuck
patent: 4340137 (1982-07-01), Foster
patent: 4441537 (1984-04-01), Vartiainen
patent: 4621971 (1986-11-01), Ratuio
patent: 4881584 (1989-11-01), Wislocker et al.
patent: 4907632 (1990-03-01), Reuter
patent: 5125497 (1992-06-01), Sundermann
patent: 5385186 (1995-01-01), Head, Jr. et al.
patent: 5429161 (1995-07-01), Allard
patent: 5649580 (1997-07-01), Mierau et al.
patent: 5676238 (1997-10-01), Saastamo
patent: 5765617 (1998-06-01), Mierau et al.
patent: 5918653 (1999-07-01), Knerr
patent: 6062376 (2000-05-01), Nerenhausen, Sr.
patent: 6105477 (2000-08-01), Olson
patent: 6176283 (2001-01-01), Knerr
patent: 6446790 (2002-09-01), Roberson
patent: 6494240 (2002-12-01), Brisson
patent: 6705363 (2004-03-01), McGehee et al.
patent: 6860302 (2005-03-01), Brisson
patent: 6896019 (2005-05-01), Achard et al.
patent: 7017632 (2006-03-01), Kennedy et al.
patent: 2003/0034090 (2003-02-01), Brisson
patent: 2006/0070859 (2006-04-01), Pahlow et al.
patent: WO 84/02105 (1984-06-01), None
patent: WO 92/81300 (1992-10-01), None
Crawford Gene
Harp William R
Schwabe Williamson & Wyatt
USNR/Kockums Cancar Company
LandOfFree
Conveyor system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Conveyor system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Conveyor system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4146456