Chipper shredder

Patent metadata

Field	Value
Publication number	US-11185014-B2
Application number	US-202016822246-A
Country	US
Kind code	B2
Filing date	Mar 18, 2020
Priority date	Mar 11, 2016
Publication date	Nov 30, 2021
Grant date	Nov 30, 2021

Abstract

Exemplary embodiments of a chipper shredder are provided. In some exemplary embodiments, the chipper shredder can include a rotor disc having an obverse side and a reverse side, one or more chipper blades provided on the obverse side, one or more impeller blades provided on the reverse side, the one or more impeller blades being perpendicular to the rotor disc, one or more hammer blades on the reverse side, the one or more hammer blades being substantially parallel to the rotor disc, and one or more L-blades on the reverse side that extend outwardly and upwardly from a center of the rotor disc.

First claim

What is claimed is:

1. A rotor for a chipper shredder, comprising:
a rotor disc having an obverse side and a reverse side one or more chipper blades provided on the obverse side of the rotor disc, the one or more chipper blades being configured to cut material;
a groove provided on the obverse side of the rotor disc, the groove having a length between a first end and a second end, and the first end and the second end have a same radius from a center of the obverse side of the rotor disc;
a hole provided on the obverse side of the rotor disc configured to provide the cut material to the reverse side of the rotor disc, wherein the second end of the groove terminates in the hole;
wherein a depth of the groove from the obverse side to the reverse side increases from the first end to the second end.

2. The rotor for the chipper shredder according to claim 1 , further comprising:
at least one aperture provided approximate the one or more chipper blades;
wherein the at least one aperture is configured to allow the cut material to pass from the obverse side of the rotor disc through the at least one aperture to the reverse side of the rotor disc.

3. The rotor for the chipper shredder according to claim 2 , further comprising:
one or more additional grooves provided between the at least one aperture approximate the one or more chipper blades and the hole.

4. The rotor for the chipper shredder according to claim 1 , wherein each point along the length of the groove has an equal radius from the center of the obverse side of the rotor disc.

5. The rotor for the chipper shredder according to claim 4 , wherein the length of the groove follows a rotation of the rotor disc such that the first end of the groove is provided at an earlier part of the rotation of the rotor disc and the second end of the groove is provided at a later part of the rotation of the rotor disc.

6. The rotor for the chipper shredder according to claim 1 , wherein four grooves are provided on the obverse side of the rotor disc, each groove having a length between a first end a second end, each first end and each second end having a same radius from a center of the obverse side of the rotor disc, and four holes are provided on the obverse side of the rotor disc, wherein the second end of each groove terminates in a respective hole of the four holes configured to provide the cut material to the reverse side of the rotor disc, wherein a depth of each groove increases from the first end to the second end of the respective groove.

Assignees

• Harbor Freight Tools Usa Inc

Inventors

• Kanchibhotla Srikanth
• Harmelink Wes

Classifications

• B02C18/18

  Knives; Mountings thereof · CPC title

• B02C18/2291

  Feed chute arrangements · CPC title

• B02C18/2216

  Discharge means · CPC title

• A01G3/002 Primary

  for comminuting plant waste · CPC title

• B02C2018/147

  of the plural stage type · CPC title