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US 4,936,361 AGranted
Rotary cutter
OwnerGilles Mercier, Rene Gelinas +2inventors
InventorsGilles Mercier, Rene Gelinas, Jacques Mercier, Paul Mercier
Life of this patent
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Abstract
A rotary cutter bar for a tree felling apparatus. The bar comprises a cylindrical rod having a plurality of raised cutting teeth on its surface. Each tooth is in the form of a short curved bar. The teeth are located on a plurality of equally spaced-apart, spiral paths extending about the cylindrical surface of the rod from one end to the other. The spiral paths extend at an angle of between 30.degree. and 60.degree. to the longitudinal axis of the rod.
Claims12
A cutter bar for a tree felling apparatus comprising:
- a cylindrical rod;
- a plurality of raised cutting teeth on the rod;
- each tooth in the form of a short, curved bar located along one of a plurality of equally spaced-apart, identical spiral paths extending about the surface of the rod from one end to the other;
- each spiral path extending at an angle of between 30.degree. and 60.degree. to the longitudinal axis of the rod;
- each spiral path carrying a number of cutting teeth, the teeth on each spiral path spaced apart from each other in the longitudinal direction of the rod.
2 more elements
A cutter bar for tree felling apparatus comprising:
- a cylindrical rod;
- a plurality of raised cutting teeth on the rod;
- each tooth in the form of a short, curved bar located along one of a plurality of equally spaced-apart, identical spiral paths extending about the surface of the rod from one end to the other;
- each spiral path extending at an angle of between 30.degree. and 60.degree. to the longitudinal axis of the rod;
- each spiral path having teeth located on it at the same radial location along the path so that the teeth on each path are aligned in a longitudinal direction of the rod;
- each tooth extending over an arc of about 120.degree. of the circumference of the rod.
3 more elements
Dependencies are inferred from the claim text.