Whole tree chipper
Patent 3955765 Issued on May 11, 1976. Estimated Expiration Date: 
May 11, 1993. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
May 11, 1993. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3545692 3601324 3752409 InventorAssigneeApplicationNo. 483824 filed on 06/27/1974US Classes:241/28, Wood and similar natural-fibrous vegetable material144/162.1, SLICER144/208.1, BARK ROSSER144/242.1, FEEDER OR PRESSER241/101.76, From rear241/152.2Diverse type comminuting zonesExaminersPrimary: Lake, RoyAssistant: Desmond, E. F. Attorney, Agent or FirmAbstractA method of whole tree chipping and whole tree chipper with a funnel-shaped receiving structure for receiving the butt end of a tree while the top of the tree is supported by the ground, and for bending limbs thereof, and a pair of free-floating feed rollers for engaging the periphery of the tree and feeding the tree to a chipper. The funnel may have teeth disposed along the interior surface thereof and be rotatable automatically in response to hang-ups within the funnel to eliminate the hang-ups by twisting and cutting of the tree limbs. Hydraulic rams preferably bias the feed rollers toward each other, and bias them to a particular orientation with respect to the opening in the funnel. The centerline of the entrance to the chipper is located in line with or slightly above the centerline of the opening in the funnel, and preferably the funnel opening is slightly smaller than the chipper entrance. | |
