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US 6,672,346 B1Granted
Palm tree trimming machine
OwnerRainer F. Heckmaierinventor
Life of this patent
Estimating the term…
Abstract
The preferred embodiment of the present invention is a tree trimming apparatus comprising a resilient frame, upright assemblies, drive assemblies, resilient alignment bar assemblies, spring tensioner assemblies, a buss assembly, and saw assemblies.
Claims15
A self-propelled, climbing tree trimming apparatus for climbing a tree in an axial direction comprising:
- a plurality of drive assemblies, each of said drive assemblies comprising a drive wheel, a drive motor, and a tool mount;
- a plurality of tensioners and resilient bars said tensioners and resilient bars including attachments such that said tensioners and resilient bars are inter-connectable to form a resilient frame surrounding the tree;
- said drive assemblies mounted on said resilient frame such that the drive wheel of each drive assembly is mounted at an angle to said tree axis and are urged into contact with the tree such that when each said drive wheel rotates, said frame moves in an axial direction along said tree while simultaneously rotating around said tree.
A self-propelled climbing tree trimming apparatus for climbing a tree in an axial direction comprising:
- a plurality of drive assemblies, each of said drive assemblies including a drive wheel, a drive motor, and a tool mount;
- a resilient frame surrounding the tree;
- said drive assemblies mounted on said resilient frame such that the drive wheel of each drive assembly is mounted at an angle to said tree axis and is urged into contact with the tree such that when at least one said drive wheel rotates said frame moves in an axial direction along said tree while simultaneously rotating around said tree.
A self-propelled climbing tree trimming apparatus for climbing a tree in an axial direction comprising:
- a plurality of drive assemblies, each of said drive assemblies comprising a drive wheel, a drive motor, and a tool mount holding a power saw;
- a frame surrounding the tree;
- said drive assemblies mounted on said frame such that the drive wheel of each drive assembly is mounted at an angle to said tree axis and is urged into contact with the tree such that when each said drive wheel rotates said frame moves in an axial direction along said tree while simultaneously rotating around said tree.
Dependencies are inferred from the claim text.