Material or article handling – Vertically swinging load support – Shovel or fork type
Reexamination Certificate
2005-02-22
2005-02-22
Underwood, Donald W. (Department: 3652)
Material or article handling
Vertically swinging load support
Shovel or fork type
C037S468000
Reexamination Certificate
active
06857842
ABSTRACT:
In an assembly mountable on a machine, including an implement provided with a pair of mounting brackets each having a pair of opposed pin receiving recesses, a dipper stick operatively connected to the machine for selected movement and having a first connecting pin rotatably mounted in an end thereof and receivable in one of the implement recesses, a fluid actuated cylinder assembly having a cylinder member pivotally connectable to the dipper stick and a rod member provided with an operatively connected second connecting pin rotatable relative thereto and receivable in the other of the implement recesses, and a pair of spacer links each disposed on a side of the dipper stick and spaced therefrom, operable to selectively maintain the connecting pins in retracted, inoperative positions permitting them to be maneuvered and inserted into or removed from the implement recesses, and in extended, inoperative positions within the implement recesses, detachably coupling the implement to the dipper stick, an adapter assembly generally consisting of at least one pair of bushings each mountable on one of the connecting pins between one of the dipper stick and the operative connection of one of the connecting pins to the rod member, and one of the spacer links, having a cross-sectional configuration receivable within one of the implement recesses.
REFERENCES:
patent: 4116346 (1978-09-01), Uchida
patent: 4133121 (1979-01-01), Hemphill
patent: 4813163 (1989-03-01), Livingston et al.
patent: 4836741 (1989-06-01), Louis et al.
patent: 6422805 (2002-07-01), Miller
patent: 6487800 (2002-12-01), Evans et al.
Rockland Inc.
Stevens Davis Miller & Mosher LLP
Underwood Donald W.
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