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US 12,156,496 B2Granted
Stump remover
AssigneeAnaheim Precision Manufacturing
InventorsMatthew T. McGinn, Joseph A. Puccio, Kevin Koller
Life of this patent
Estimating the term…
Abstract
A stump removal tool operable to sever a tree stump. The stump removal tool including an anchor fixedly couplable to the stump, and a cutting assembly adjustable between a closed position and an open position, and where the cutting assembly is removably couplable to the anchor.
Claims20
A stump removal tool operable to sever a tree stump, the stump removal tool comprising:
- an anchor configured to be fixedly secured to the tree stump;
- a cutting assembly defining a central axis therethrough, wherein the cutting assembly is removably couplable to the anchor, and wherein the cutting assembly includes a plurality of arm assemblies each including a blade plate;
- and
- wherein the plurality of arm assemblies are adjustable between an open configuration in which each blade plate is located a first distance from the central axis, and a closed configuration in which each blade plate is located a second distance from the central axis less than the first distance, and
- wherein the cutting assembly further includes a lead screw co-axial with the central axis.
2 more elements
A stump removal tool operable to sever a tree stump, the stump removal tool comprising:
- a lead screw extending along a central axis of the stump removal tool and configured to be coupled to the tree stump;
- a first central hub coupled to and configured to move axially along the lead screw;
- a second central hub coupled to and axially fixed relative to the lead screw, wherein the first central hub and the second central hub define a hub distance therebetween;
- a plurality of arm assemblies pivotably coupled the first central hub and pivotably coupled to the second central hub, wherein each arm assembly including a blade plate, and wherein each blade plate defines a blade plate distance from the central axis;
- and
- wherein adjusting the hub distance causes at least one blade plate distance to change.
3 more elements
A stump removal tool operable to sever a tree stump, the stump removal tool comprising:
- an anchor fixedly couplable to the stump;
- and
- a cutting assembly adjustable between a closed position and an open position, and wherein the cutting assembly is removably couplable to the anchor, and
- wherein the cutting assembly includes a lead screw defining an axis, and wherein the lead screw is coupled to the anchor so that the lead screw may rotate relative to the anchor but is axially fixed relatively to the anchor.
1 more element
Dependencies are inferred from the claim text.