US4360166A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Motor-driven shredding apparatus particularly for garden waste
Assignee: Crones and Co GmbH
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Filing: 1980-08-18
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Granted: 1982-11-23
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Expires: 2000-08-18
Abstract
Abstract Motor-driven shredding apparatus for garden waste consists of a cutter support plate (13) rotating about a vertical axis in a cutter housing (4) provided with an outlet channel (4"), which plate (13) includes outlet slots (13') and plane-blade-like shredding cutters (14) thereabove. Above the cutter housing (4), two inlets (1,2) are provided for the separate supply of light and heavy material to be shredded, such as thin twigs and leaves and thicker twigs and branches respectively, wherein the inlet (2) for the heavy material to be shredded extends to the shredding cutters (14) and the other inlet (1) lies above shredding blades (17) rotating with the cutter support plate (13). In order to achieve a more effective shredding and blockage-free discharge even of light material to be shredded with a lower power rating, the shredding blades (17) are secured centrally to the upper side of the cutter support plate (13) and project into the lower end of a charging container (3) arranged over the cutter housing (4) and provided with fixed counter-plates (8), which container (3) carries at the top the inlet (1) for the light material to be shredded and below is closed by the cutter support plate (13) and also is equipped with the other, inclined inlet (2) formed as the inlet tube for branches.
Inventors
- 👤 Horst Biersack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:35
CPC Classifications
B; B02; B02C; B02C18/00; B02C18/06; B02C18/08; B02C18/083; B02C18/12; B02C2201/00; B02C2201/06; B02C2201/066
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
326 words
Motor-driven shredding apparatus for comminuting waste material, particularly garden waste, which comprises a cutter housing having a laterally-directed outlet for the discharge of shredded waste material, a cutter support plate mounted within the cutter housing for rotation about a central vertical axis, a frame supporting the cutter housing and carrying a motor for rotatably driving the cutter support plate, respective inlets arranged above the cutter housing and serving to direct light material to be shredded and heavy material to be shredded separately towards the cutter support plate, at least one radial slot in the cutter support plate, a shredding cutter mounted upon the cutter support plate above each radial slot and cooperating therewith on rotation of the cutter support plate to shred waste material and direct the shredded material downwardly through the cutter support plate, a cylindrical charging container for receiving waste material to be shredded located over the cutter housing, the cutter support plate being positioned so as to form the base of the container, at least one shredding blade mounted on the upper side of the cutter support plate for rotation therewith and extending upwardly and in an outwardly-inclined manner relative to the central vertical axis into the charging container, at least one fixed counter-plate located within the container for cooperating with each shredding cutter and also with each shredding blade and positioned so that the path of rotation of each shredding cutter is below and adjacent each fixed counter-plate and so that the path of rotation of each shredding blade is above and adjacent each fixed counter-plate, the inlet for light material to be shredded being located at the top of the container and the inlet for heavy material to be shredded comprising a downwardly-inclined inlet tube passing through the lower wall part of the container to discharge above the cutter support plate and at least one dependent discharge blade on the cutter support plate for directing shredded waste toward the laterally-directed outlet.
Claim 2
Dependent Claim
326 words
Motor-driven shredding apparatus for comminuting waste material, particularly garden waste, which comprises a cutter housing having a laterally-directed outlet for the discharge of shredded waste material, a cutter support plate mounted within the cutter housing for rotation about a central vertical axis, a frame supporting the cutter housing and carrying a motor for rotatably driving the cutter support plate, respective inlets arranged above the cutter housing and serving to direct light material to be shredded and heavy material to be shredded separately towards the cutter support plate, at least one radial slot in the cutter support plate, a shredding cutter mounted upon the cutter support plate above each radial slot and cooperating therewith on rotation of the cutter support plate to shred waste material and direct the shredded material downwardly through the cutter support plate, a cylindrical charging container for receiving waste material to be shredded located over the cutter housing, the cutter support plate being positioned so as to form the base of the container, at least one shredding blade mounted on the upper side of the cutter support plate for rotation therewith and extending upwardly and in an outwardly-inclined manner relative to the central vertical axis into the charging container, at least one fixed counter-plate located within the container for cooperating with each shredding cutter and also with each shredding blade and positioned so that the path of rotation of each shredding cutter is below and adjacent each fixed counter-plate and so that the path of rotation of each shredding blade is above and adjacent each fixed counter-plate, the inlet for light material to be shredded being located at the top of the container and the inlet for heavy material to be shredded comprising a downwardly-inclined inlet tube passing through the lower wall part of the container to discharge above the cutter support plate and at least one dependent discharge blade on the cutter support plate for directing shredded waste toward the laterally-directed outlet.
Claim 3
Dependent Claim
83 words
Shredding apparatus according to claim 1, wherein two shredding blades are provided in the form of oppositely outwardly and upwardly inclined limbs of a U-shaped member rotatable adjacent the fixed counter-plates, a cutter shaft mounted for rotation about the central vertical axis is drivingly coupled to the motor and a central web of the U-shaped member is located against the upper side of the cutter support plate and is secured together with the cutter support plate to the top of the cutter shaft.
Claim 4
Dependent Claim
71 words
Shredding apparatus according to claim 2, wherein bearings for mounting the cutter shaft are located in the base of the cutter housing, such housing is of U-shape in plan, the charging container is located on and detachably connected to the cutter housing, a laterally-directed discharge hood is provided over the discharge channel extending from the cutter housing and a downwardly-inclined flap is provided on the outlet each of the discharge channel.
Claim 5
Dependent Claim
24 words
Shredding apparatus according to claim 1, wherein the discharge blades comprise dependent lugs formed by stamping additional radial slots in the cutter support plate.
Claim 6
Dependent Claim
42 words
Shredding apparatus according to claim 1, wherein the inlet aperture for light material to be shredded comprises a slot not more than 3 cm in width at the lower end of a hopper-like inlet provided at the top of the charging container.
Claim 7
Dependent Claim
42 words
Shredding apparatus according to claim 1, wherein the shredding cutter comprises a double-edged cutter plate reversibly mountable over its associated radial slot, whereby one of the cutting edges of the cutter plate can be positioned for effecting the shredding of waste material.
Claim 8
Dependent Claim
36 words
Shredding apparatus according to claim 1, wherein the frame carries support legs for the apparatus and an electric motor for rotating the cutter support plate and the components mounted thereon is mounted underneath the cutter housing.
Claim 9
Dependent Claim
27 words
Shredding apparatus according to claim 1, wherein a carrying handle for the apparatus is attached to the charging container adjacent the centre of gravity of the apparatus.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-11-22 | 1986-05-24 | 1986-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-11-22 | 1990-05-24 | 1990-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-11-22 | 1994-05-24 | 1994-11-23 | $7700.00 | Window Closed / Lapsed |