Shredding machines
US4349159A · kind A · utility
Inventors
Key dates
| Filing date | Mar 5, 1980 |
| Grant date | Sep 14, 1982 |
| Priority date | — |
| Expiry date | Mar 5, 2000 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB02C18/182
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A rotary shredding machine having a comminuting chamber within which is a pair of parallel cutter shafts arranged for simultaneous contra-rotation and a plurality of cutters secured to each of the shafts, each cutter being a generally disc-like body having at least one radially projecting peripheral tooth provided with a cutting edge along a leading edge thereof, each disc-like body defining a coaxial shaft aperture receiving an associated shaft with both the shafts and the apertures being substantially square in cross-section with straight sides, the cutting edge of each tooth being intersected by a radial plane inclined at an angle in the range of 0.degree. to 60.degree. with respect to a diametral plane bisecting one side of the square shaft aperture with the angle being defined forward of the cutting edge in the direction of intended rotation of the cutter, each cutter body including a plurality of cutter body members and releasable fastening elements for holding the cutter body members together, each cutter body member having two first surface portions extending chordally from the body periphery and joined by a second surface portion for engaging an associated shaft, the secon…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.