Material or article handling – Vertically swinging load support – Shovel or fork type
Reexamination Certificate
2007-01-30
2007-01-30
Underwood, Donald (Department: 3652)
Material or article handling
Vertically swinging load support
Shovel or fork type
C172S274000
Reexamination Certificate
active
11119864
ABSTRACT:
The masts of a front-end loader are releasably attached to vertical plates of a loader mounting frame located at the opposite sides of a tractor by latch hooks pivotally mounted to the masts and engaged with latching elements carried by the vertical plates. An over center biasing arrangement acts on each latch hook and acts to bias the latch hook to a closed position, but moves over center when the latch is manually opened so as to bias the latch to its open position. The pins pivotally coupling the latches to the masts also serve to couple the piston rods of a pair of loader boom lift cylinders to the masts. Extension of the cylinders during detaching the masts from the vertical plates causes the opened latch hooks to be pivoted to the extent that the biasing elements move over center and reset the latches to their closed positions, which positions are conducive for automatically reattaching the mast to the vertical plates.
REFERENCES:
patent: 5387075 (1995-02-01), Aoki
patent: 5620297 (1997-04-01), Mahaney
patent: 6386821 (2002-05-01), Schneider
patent: 2 131 391 (1983-11-01), None
Guja Radu Traian
Lyons Russell George
Deere & Company
Underwood Donald
LandOfFree
Latching system for automatically securing front-mounted... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Latching system for automatically securing front-mounted..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Latching system for automatically securing front-mounted... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3823699