US3726208A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Comminuting method and apparatus
Assignee: Societe des Produits Nestle SA
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Filing: 1970-12-29
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Granted: 1973-04-10
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Expires: 1990-12-29
Abstract
Abstract A comminuting apparatus comprises a central feeding means, cutting discs mounted on rotatable shafts disposed around the feeding means, a cage surrounding the discs and movable relative thereto and a housing around the cage for collecting comminuted material. In operation the discs and cage are rotated and the material, fed centrally, is subdivided between the discs and the cage so that once pieces of the desired size are obtained they leave through openings in the cage. Other features of the invention appear in the following specification and drawings.
Inventors
- 👤 F Brengman
- 👤 K Brengman
- 👤 J Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:50
CPC Classifications
B; B02; B02C; B02C17/00; B02C17/002; B01; B01J; B01J2/00; B01J2/12; B02C17/02; B02C18/00; B02C18/06; B02C18/14
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
75 words
A grinder comprising a central feeding means for the material to be comminuted, a plurality of rotatable shafts each carrying a plurality of cutting discs disposed encirclingly around the feeding means, means for rotating the shafts, an encircling cage exterior to the discs movable relative thereto, said cage having openings therein, each of said cage openings being radially aligned with one of said discs, and a housing surrounding the cage for collecting the comminuted material.
Claim 2
Dependent Claim
75 words
A grinder comprising a central feeding means for the material to be comminuted, a plurality of rotatable shafts each carrying a plurality of cutting discs disposed encirclingly around the feeding means, means for rotating the shafts, an encircling cage exterior to the discs movable relative thereto, said cage having openings therein, each of said cage openings being radially aligned with one of said discs, and a housing surrounding the cage for collecting the comminuted material.
Claim 3
Dependent Claim
29 words
A grinder according to claim 1 in which the cage is made up of spaced rings rotatable around the discs, the spaces between said rings defining said cage openings.
Claim 4
Dependent Claim
88 words
A grinder comprising a central feeding means for the material to be comminuted and including an auger mounted within a central tube provided with openings, a plurality of rotatable shafts each carrying a plurality of cutting discs disposed encirclingly around the feeding means, means for rotating the shafts, an encircling cage exterior to the discs and movable relative thereto, said cage having openings therein, each of said cage openings being radially aligned with one of said discs, and a housing surrounding the cage for collecting the comminuted material.
Claim 5
Dependent Claim
88 words
A grinder comprising a central feeding means for the material to be comminuted and including an auger mounted within a central tube provided with openings, a plurality of rotatable shafts each carrying a plurality of cutting discs disposed encirclingly around the feeding means, means for rotating the shafts, an encircling cage exterior to the discs and movable relative thereto, said cage having openings therein, each of said cage openings being radially aligned with one of said discs, and a housing surrounding the cage for collecting the comminuted material.
Claim 6
Dependent Claim
20 words
A grinder according to claim 3 in which the openings in the central tube are disposed along a spiral line.
Claim 7
Dependent Claim
108 words
A grinder comprising a central feeding means for the material to be comminuted and an auger mounted within a central tube provided with openings, a plurality of rotatable shafts each carrying a plurality of cutting discs disposed encirclingly around the feeding means, said shafts being parallel to said central tube to which are attached two flanges in which the shafts are rotatably mounted, means for rotating the shafts, an encircling cage exterior to the discs and movable relative thereto, said cage having openings therein, each of said cage openings being radially aligned with one of said discs, and a housing surrounding the cage for collecting the comminuted material.
Claim 8
Dependent Claim
108 words
A grinder comprising a central feeding means for the material to be comminuted and an auger mounted within a central tube provided with openings, a plurality of rotatable shafts each carrying a plurality of cutting discs disposed encirclingly around the feeding means, said shafts being parallel to said central tube to which are attached two flanges in which the shafts are rotatably mounted, means for rotating the shafts, an encircling cage exterior to the discs and movable relative thereto, said cage having openings therein, each of said cage openings being radially aligned with one of said discs, and a housing surrounding the cage for collecting the comminuted material.
Claim 9
Dependent Claim
19 words
A grinder according to claim 5 in which the feeding means comprises an auger mounted within the central tube.
Claim 10
Dependent Claim
20 words
A grinder according to claim 6 in which the openings in the central tube are disposed along a spiral line.
Claim 11
Dependent Claim
31 words
A grinder according to claim 5 in which each shaft is provided with a driving pinion and the cage is provided with rings with internal teeth meshing with the shaft pinions.
Claim 12
Dependent Claim
105 words
A grinder comprising a central feeding means for the material to be comminuted, a plurality of rotatable shafts each carrying a plurality of cutting discs disposed encirclingly around the feeding means, means for rotating shafts, an encircling cage exterior to the discs and movable relative thereto, said cage having openings therein, each of said cage openings being radially aligned with one of said discs, said cage comprising spaced rings rotatable around the discs, the spaces between said rings defining said cage openings, the thickness of the rings decreasing from insdie to outside the cage, and a housing surrounding the cage for collecting the comminuted material.
Claim 13
Dependent Claim
105 words
A grinder comprising a central feeding means for the material to be comminuted, a plurality of rotatable shafts each carrying a plurality of cutting discs disposed encirclingly around the feeding means, means for rotating shafts, an encircling cage exterior to the discs and movable relative thereto, said cage having openings therein, each of said cage openings being radially aligned with one of said discs, said cage comprising spaced rings rotatable around the discs, the spaces between said rings defining said cage openings, the thickness of the rings decreasing from insdie to outside the cage, and a housing surrounding the cage for collecting the comminuted material.
Claim 14
Dependent Claim
20 words
A grinder according to claim 5 in which the cage is made up of spaced rings rotatable around the discs.
Claim 15
Dependent Claim
20 words
A grinder according to claim 10 in which the thickness of the rings decrease from inside to outside the cage.
Claim 16
Independent Claim
73 words
A method of subdividing a friable solid material which comprises advancing the material along an axis parallel to and spaced radially inwardly of the axes about which rotating cutting discs are being rotated, and then moving the material between said discs and an external cage moving relative to the discs and having openings radially aligned with said discs to cut said material, and cause the cut material to pass through the cage openings.
Claim 17
Independent Claim
73 words
A method of subdividing a friable solid material which comprises advancing the material along an axis parallel to and spaced radially inwardly of the axes about which rotating cutting discs are being rotated, and then moving the material between said discs and an external cage moving relative to the discs and having openings radially aligned with said discs to cut said material, and cause the cut material to pass through the cage openings.
Claim 18
Dependent Claim
17 words
A method according to claim 12 in which the friable material is frozen tea or coffee extract.
Claim 19
Dependent Claim
33 words
A grinder according to claim 2 in which said rings have inclined inner surfaces, the inner surfaces of adjacent ones of said rings defining a convergingly inclined entry course to said cage openings.
References Cited (Backward Citations)
US233829A
Cited
US3082806A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-04-09 | 1976-10-09 | 1977-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-09 | 1980-10-09 | 1981-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-09 | 1984-10-09 | 1985-04-10 | $7700.00 | Window Closed / Lapsed |