US4101080A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Beater mill
Assignee: SCHMIDT AND SONNER MASKINFABRIK AS
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Filing: 1976-07-07
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Granted: 1978-07-18
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Expires: 1996-07-07
Abstract
Abstract A beater mill comprising a cylindrical housing which accomodates a rotor carrying at least two arcuately spaced groups of beaters, the beaters from group to group being axially offset, the cylindrical jacket of the housing being formed as a peripheral sectional screen, an axial inlet for material to be milled being provided adjacent the rotor axis, the rotor arms being formed as fan blades and the said inlet including a distributor means for the air and material taken in through the inlet.
Inventors
- 👤 Hartinus Thomsen Schmidt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:03
CPC Classifications
B; B02; B02C; B02C13/00; B02C13/26; B02C13/286; B02C13/02; B02C13/06; B02C13/08
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
195 words
A beater mill comprising a cylindrical housing, a rotor mounted for rotation in said housing, said rotor including a hub and at least two fan blades arcuately spaced about the rotor axis, said fan blades each having a plurality of beaters thereon, the beaters of one of said fan blades being axially offset with respect to the beaters of another of said fan blades, said cylindrical housing including a peripheral screen area, the outer portions of said fan blades having an axial width corresponding to the width of said peripheral screen area, the inner portions of said fan blades having a reduced axial width and forming an axial recess in said rotor, inlet means for delivering both air and solids to said housing including an inlet duct terminating within said recess of said rotor coaxially therewith, a distributor mounted within said recess coaxially with said inlet duct and said rotor and for axial adjustment relative to said rotor, said peripheral screen area including a plurality of arcuate sections, each section being rigid and having axially-extending flanges, and mounting means on said housing including axial slots for carrying the flanges of said sections in sliding relationship.
Claim 2
Dependent Claim
195 words
A beater mill comprising a cylindrical housing, a rotor mounted for rotation in said housing, said rotor including a hub and at least two fan blades arcuately spaced about the rotor axis, said fan blades each having a plurality of beaters thereon, the beaters of one of said fan blades being axially offset with respect to the beaters of another of said fan blades, said cylindrical housing including a peripheral screen area, the outer portions of said fan blades having an axial width corresponding to the width of said peripheral screen area, the inner portions of said fan blades having a reduced axial width and forming an axial recess in said rotor, inlet means for delivering both air and solids to said housing including an inlet duct terminating within said recess of said rotor coaxially therewith, a distributor mounted within said recess coaxially with said inlet duct and said rotor and for axial adjustment relative to said rotor, said peripheral screen area including a plurality of arcuate sections, each section being rigid and having axially-extending flanges, and mounting means on said housing including axial slots for carrying the flanges of said sections in sliding relationship.
Claim 3
Dependent Claim
34 words
The beater mill of claim 1 in which end portions of said arcuate screen sections extend arcuately beyond said flanges, and releaseable locking means for engaging said extended end portions of said screen sections.
Claim 4
Dependent Claim
16 words
The beater mill of claim 2 in which said releaseable locking means includes cam locking means.
References Cited (Backward Citations)
US1572722A
Cited
US2033757A
Cited
US2376361A
Cited
US2890840A
Cited
US3123312A
Cited
US3756517A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-07-17 | 1982-01-16 | 1982-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-07-17 | 1986-01-16 | 1986-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-07-17 | 1990-01-16 | 1990-07-18 | $7700.00 | Window Closed / Lapsed |