Woodworking – Special-work machine – Combined
Patent
1995-02-01
1996-12-03
Bray, W. Donald
Woodworking
Special-work machine
Combined
144 341, 144 2413, 414694, A01G 2308
Patent
active
055798160
ABSTRACT:
A boom-mounted grappling and manipulating apparatus is provided that may be rotatably mounted on a vehicle, comprising an articulated boom with a grappling and manipulating head rotatably and pivotally mounted thereto. The head is provided with opposable jaws comprising jaw members that apply an even pressure to an object being gripped. A drive coupling may be provided to provide a continuous rotary link between hydraulic lines on the boom with lines the head. The coupling comprises a coupling body rotatably housed within a sheath with a groove between the coupling body and the sheath. The groove permits fluid to be transmitted from the body to the sheath while they are rotated relative to each other. The boom may be provided with a link joining two of the segments, provided with dual articulated cylinder mounts on opposing sides and capable of permitting approximately 360 degrees of rotation between the segments.
REFERENCES:
patent: 4083463 (1978-04-01), Ericsson
patent: 4412777 (1983-11-01), Forslund
patent: 5082036 (1992-01-01), Veerikko
patent: 5101872 (1992-04-01), Schuren
patent: 5107912 (1992-04-01), Cote et al.
patent: 5377730 (1995-01-01), Hamilton
patent: 5378852 (1995-01-01), Manor
patent: 5390715 (1995-02-01), Luscombe
patent: 5441090 (1995-08-01), Hill et al.
patent: 5501257 (1996-03-01), Hickman
Hackett Bruce A.
Hill Terrence R.
Bray W. Donald
Zahl Adrian
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