Material or article handling – Load-transporting type vehicle and external means... – Power-driven conveyor for loading a wheeled vehicle
Reexamination Certificate
2007-12-19
2010-06-15
Keenan, James (Department: 3652)
Material or article handling
Load-transporting type vehicle and external means...
Power-driven conveyor for loading a wheeled vehicle
C198S774100, C414S392000, C414S525100
Reexamination Certificate
active
07736114
ABSTRACT:
A trailer (T) and a dock (D) are provided with substantially identical slat conveyors (10, 12). Each conveyor (10, 12) has alternating conveyor slats (36, 36′) and lifting/holding slats (38, 38′). The trailer (T) is backed up to the dock (D). Upper portions of the lifting/holding slats (38, 38′) are coupled together at their ends. The confronting ends of the conveying slats (36, 36′) are also coupled together. A mechanism carried by the dock (D) raises and lowers the upper portions of the two sets of lifting/holding slats (38, 38′) a drive mechanism carried by the dock (D) where it reciprocates both sets of conveying slats (36, 36′).
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patent: 2828027 (1958-03-01), Stevenson et al.
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patent: 7083041 (2006-08-01), Foster et al.
patent: 2002/0085904 (2002-07-01), Hallstrom et al.
Cook John Scott
Foster Randall Mark
Foster Raymond Keith
Kaser Bruce A.
Keenan James
Keith Manufacturing Co.
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