Excavating – Combined or convertible – Having quick-connect coupling
Reexamination Certificate
2007-12-21
2010-10-12
Beach, Thomas A (Department: 3671)
Excavating
Combined or convertible
Having quick-connect coupling
C037S414000, C037S408000, C414S699000, C414S723000, C701S050000
Reexamination Certificate
active
07810260
ABSTRACT:
A control system for a tool coupling of the type that attaches a tool to an excavator dipper stick and provides for rotation of the tool with respect to the dipper stick about an axis, and further provides for tilting of the tool, includes a rotation sensor and a tilt sensor. The rotation sensor is mounted on the coupling for determining the amount of rotation of the tool with respect to the dipper stick about an axis. The tilt sensor is mounted on the coupling for determining the amount of tilt of the tool with respect to gravity. A control is responsive to the rotation sensor and to the tilt sensor for determining the orientation of the tool.
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“Swedes go full tilt for success” Construction Weekly, vol. 4, No. 24, Jun. 17, 1992, p. 19.
Invitation to Pay Additional Fees and Partial International Search for International application No. PCT/US2008/087161 dated Mar. 4, 2009.
Arumugam Anand
Pope Richard M.
Beach Thomas A
Caterpillar Trimble Control Technologies LLC
Dinsmore & Shohl LLP
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