US3851829A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for crushing solid materials
Assignee: Rheinstahl AG
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Filing: 1973-09-27
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Granted: 1974-12-03
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Expires: 1993-09-27
Abstract
Abstract An apparatus for physically reducing material in which a rotor is rotatable on the axis of a vertical housing. The inner wall of the housing is in the form of axial wear plates which have side edges engaging carrier members in the housing. The rotor has a plurality of rows of disc-like beating members thereon at different levels with each beating member having a profiled periphery protruding radially from the rotor for cooperation with the wear plates. The gap between the peripheral portions of the beating members and the inside of the housing decreases in the downward direction. Material to be reduced is fed into the housing at the top and progressed downwardly therein while being reduced between the beating members and the wear plates.
Inventors
- 👤 W Kohler
- 👤 W Dopper
- 👤 D Hausler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:44
CPC Classifications
B; B02; B02C; B02C19/00; B02C13/00; B02C13/14; B02C13/16; B02C13/26; B02C13/28; B02C13/2804
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
168 words
In an apparatus for physically reducing material; a housing substantially circular in cross section disposed on a vertical axis, axial wear plates distributed circumferentially inside said housing and forming the radially inner wall thereof, an axial corner extending along at least one circumferential edge of each wear plate, profiled carrier members on the housing interposed between and extending axially along said wear plates, interfitting elements of key means on the sides of said carrier members and the edges of said wear plates for supporting said wear plates in said housing, a rotor in the housing rotatable on the axis of the housing, and axially spaced rows of circumferentially spaced disc-like beating members on said rotor, means supporting each beating member for rotation on a vertical axis on the rotor, each beating member having a profiled peripheral portion protruding radially from the rotor, the radial gap between the radially inner wall of said housing and the periphery of each said row of beating members decreasing in the downward direction.
Claim 2
Dependent Claim
168 words
In an apparatus for physically reducing material; a housing substantially circular in cross section disposed on a vertical axis, axial wear plates distributed circumferentially inside said housing and forming the radially inner wall thereof, an axial corner extending along at least one circumferential edge of each wear plate, profiled carrier members on the housing interposed between and extending axially along said wear plates, interfitting elements of key means on the sides of said carrier members and the edges of said wear plates for supporting said wear plates in said housing, a rotor in the housing rotatable on the axis of the housing, and axially spaced rows of circumferentially spaced disc-like beating members on said rotor, means supporting each beating member for rotation on a vertical axis on the rotor, each beating member having a profiled peripheral portion protruding radially from the rotor, the radial gap between the radially inner wall of said housing and the periphery of each said row of beating members decreasing in the downward direction.
Claim 3
Dependent Claim
32 words
An apparatus according to claim 1 in which said rotor is substantially cylindrical and the beating members increase in diameter from the top of the rotor to the bottom of the rotor.
Claim 4
Dependent Claim
34 words
An apparatus according to claim 1 in which said elements of key means comprise grooves extending along the side edges of the plate and rib portions on said carrier members receivable in said grooves.
Claim 5
Dependent Claim
59 words
An apparatus according to claim 1 in which said wear plates are parallel to the axis of the housing, said rotor being cylindrical, and said beating members increasing in diameter from the top of the rotor to the bottom of the rotor to obtain the narrowing of the gap between the rotor and the housing in the downward direction.
Claim 6
Dependent Claim
59 words
An apparatus according to claim 1 in which said elements of key means comprise grooves extending along the side edges of the plate and rib portions on said carrier members receivable in said grooves, and clamp means operatively interposed between said carrier members and wear plates and clamping the wear plates in radially outermost positions on said carRier members.
Claim 7
Dependent Claim
35 words
An apparatus according to claim 5 in which said clamp means comprise fluid pressure expansible means interposed between the radially outwardly facing side of said ribs and the radially inwardly facing sides of said grooves.
Claim 8
Dependent Claim
23 words
An apparatus according to claim 1 in which said means supporting said beating members on said rotor comprises vertical shafts in the rotor.
Claim 9
Dependent Claim
21 words
An apparatus according to claim 7 in which all of the beating members in each row thereof are the same diameter.
Claim 10
Dependent Claim
47 words
An apparatus according to claim 1 in which said means supporting said beating members on said rotor comprises a plurality of vertical shafts in the rotor all on a common pitch circle and all of the beating members in a respective row being of the same diameter.
Claim 11
Dependent Claim
27 words
An apparatus according to claim 3 in which each said carrier member and each said wear plate is symmetrical about a respective axial plane of the housing.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-12-02 | 1978-06-03 | 1978-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-02 | 1982-06-03 | 1982-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-02 | 1986-06-03 | 1986-12-03 | $7700.00 | Window Closed / Lapsed |