Woodworking – Special-work machine – Tree delimbing
Reexamination Certificate
2007-09-25
2007-09-25
Self, Shelley M. (Department: 3725)
Woodworking
Special-work machine
Tree delimbing
C144S208200
Reexamination Certificate
active
11085787
ABSTRACT:
A tree delimber including a base frame rotatably supporting a yoke assembly and a cutting head assembly. The yoke assembly is journalled for rotation in a ring bearing on the base frame, adjacent its front end, and supported by a pair of roller units adjacent its rear end. Each roller unit includes a vertically adjustable roller, adjustment being automatically effected by horizontal movement of a wedge driven by a control rod under the influence of fluid pressure in a hydraulic cylinder.
REFERENCES:
patent: 4899794 (1990-02-01), Hamby, Jr.
patent: 5515895 (1996-05-01), Hamby, Jr.
patent: 5704407 (1998-01-01), Hamby, Jr.
patent: 6167927 (2001-01-01), Holmes, III
Blount, Inc.
Self Shelley M.
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