Apparatus for cutting vegetation
AssigneeEmery Tree Service, Inc.
InventorBenjamin H. Emery
Life of this patent
Estimating the term…
Abstract
An apparatus for cutting vegetation such as tree branches is disclosed, which includes a vehicle, a first boom attached to the vehicle, a second boom attached to the first boom, and a cutter attached to the second boom. A first piston and cylinder is attached between the vehicle and the first boom, a second piston and cylinder is attached between the first boom and the second boom, and a third piston and cylinder is attached between the second boom and the cutter. A first engine is mounted on the vehicle and operatively connected to the pistons and cylinders, and a second engine is also mounted on the vehicle and is operatively connected to only power the cutter.
Claims19
An apparatus for cutting an object, comprising:
- a vehicle;
- a first boom attached to said vehicle;
- a second boom attached to said first boom;
- cutting means attached to said second boom for cutting vegetation;
- moving means for moving said first and second booms and said cutting means;
- first engine means mounted on said vehicle for powering said moving means;
- and
- second engine means mounted on said vehicle spaced from said first engine means for powering said cutting means.
An apparatus for cutting an object, comprising:
- a vehicle;
- a first boom pivotally attached to said vehicle;
- a second boom pivotally attached to said first boom;
- a cutter attached to said second boom;
- a first piston and cylinder attached between said vehicle and said first boom;
- a second piston and cylinder attached between said first boom and said second boom;
- a third piston and cylinder attached between said second boom and a housing of said cutter;
- a first engine mounted on said vehicle and operatively connected to said piston and cylinders;
- and
- a second engine mounted on said vehicle and operatively connected to said cutter.
An apparatus for cutting tree branches, comprising:
- a vehicle having a forward end and a rear end;
- a first boom having a first end and a second end, said first end being pivotally attached to said forward end of said vehicle;
- a second boom having a first end and a second end, said first end of said second boom being pivotally attached to said second end of said first boom;
- a cutter including a housing, a rotatable cutting disk, and a hydraulic motor rotatably drivingly connected to said cutting disk, said housing being pivotally attached to said second end of said second boom;
- a first piston and cylinder attached between said vehicle and said first boom;
- a second piston and cylinder attached between said first boom and said second boom;
- a third piston and cylinder attached between said second boom and said housing;
- a first engine mounted on said vehicle and operatively connected to said pistons and cylinders to pivot said cutter and said first and second booms;
- a second engine mounted on said rear end of said vehicle at a location spaced from said first engine;
- and
- a hydraulic system connected between said second engine and said hydraulic motor, said hydraulic system including a hydraulic pump operatively connected to said second engine, a hydraulic line extending between said hydraulic pump and said hydraulic motor, a return line extending between said hydraulic motor and said hydraulic pump, an air-to-fluid cooler in said return line, a filter in said return line, a relief line extending between said hydraulic pump and said return line in parallel with said hydraulic line, a relief valve in said relief line, and a switch connected to said relief valve to open and close said relief valve.
Dependencies are inferred from the claim text.