Material or article handling – Vertically swinging load support – Shovel or fork type
Reexamination Certificate
2007-11-06
2007-11-06
Underwood, Donald (Department: 3652)
Material or article handling
Vertically swinging load support
Shovel or fork type
C037S468000, C091S432000, C403S321000
Reexamination Certificate
active
11075926
ABSTRACT:
An actuator operated apparatus for mounting and hydraulically coupling a working attachment to a mounting plate of a work vehicle. The apparatus receives a portion of pressurized fluid from the work vehicle to actuate a pair of wedges that slidably move to lock or unlock the working attachment and the mounting plate. The apparatus receives a remaining portion of the pressurized fluid from the work vehicle to engage or disengage at least one hydraulic coupler of a first coupling block and at least one hydraulic coupler of a second coupling block.
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Search Report and Written Opinion dated Jun. 30, 2006 for International Application No. PCT/US2006/006117, filed Feb. 22, 2006.
Albright Larry E.
Kaczmarski Wally L.
Clark Equipment Company
Michael & Best & Friedrich LLP
Underwood Donald
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