Earth working – With means to facilitate mounting of implement on motor vehicle
Reexamination Certificate
2007-05-02
2010-11-09
Will, Thomas B (Department: 3671)
Earth working
With means to facilitate mounting of implement on motor vehicle
C414S723000
Reexamination Certificate
active
07828070
ABSTRACT:
A safety locking device18for a quick hitch/coupler10of an earth working machine. The safety locking device18has a locking element21which is biased into a locking position to automatically lock a front pin of an implement when it is engaged in the hook14of the coupler10. The safety locking device18has an hydraulic operable mechanism to move the locking element21to an unlocking position. The hydraulic supply to the safety locking device18is independent of the hydraulic supply to a locking mechanism16of the coupler10.
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European Patent Office issued an European Search Report dated Feb. 23, 2009, Application No. 07 25 1831.
Calvert David Aperahama
Calvert Matthew James
Briggs and Morgan P.A.
Champlin Aleya R.
Mitchell Joel F.
Wedgelock LLC
Will Thomas B
LandOfFree
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