Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – Construction or agricultural-type vehicle
Reexamination Certificate
2011-06-28
2011-06-28
Black, Thomas G (Department: 3661)
Data processing: vehicles, navigation, and relative location
Vehicle control, guidance, operation, or indication
Construction or agricultural-type vehicle
C212S272000, C212S274000, C212S278000
Reexamination Certificate
active
07970520
ABSTRACT:
The lifting gear comprises two motors (1, 1′) that are connected to a transmission (6) via respective drive shafts (2, 2′), couplings (3, 3′), with fitted brake disks (4, 4′) or brake drums, brakes (14, 14′) and transmission input shafts (5, 5′). The transmission (6) drives cable drums (9, 9′) via transmission output shafts (7, 7′) and couplings (8, 8′). The cable drums have a cable pull (12, 12′) and fitted brake disks (10, 10′) or brake drums and safety brakes (11, 11′). The inventive lifting gear is characterized by comprising, in the drive shafts (2, 2′), devices (13, 13′) that completely or partially disconnect the motors (1, 1′) from the transmission (6) when an excess load exceeds the predetermined load. They are monitored on both sides of the devices (13, 13′) and the brakes (14, 14′) and/or safety brakes (11, 11′) are activated in the event of disconnection.
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International Search Report.
International Preliminary Report on Patentability.
Black Thomas G
Collard & Roe P.C.
Louie Wae
M.A.T. Malmedie Antriebstechnik GmbH
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