US5635223A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for fixing the dies in the die table of tabletting machines
Assignee: Korsch AG
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Filing: 1995-04-05
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Granted: 1997-06-03
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Expires: 2015-04-05
Abstract
Abstract A device for fixing the dies in the die table of a tabletting machine, especially of a rotary tabletting machine, using die holders. To make it possible to rapidly remove the old dies and to rapidly fix the new dies during the replacement of the dies for cleaning the machine, the die holders are arranged between the rotor axis and the pitch circle of the dies, and structure is provided for jointly moving the die holders on the die table.
Inventors
- 👤 Wolfgang Korsch
- 👤 Peter Sommerfeld
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:29
CPC Classifications
B; B30; B30B; B30B15/00; B30B15/02; B30B15/026; B30B11/00; B30B11/02; B30B11/08
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
56 words
Device for fixing dies in a die table of a rotary tabletting machine, comprising: dies provided in a pitched circle; die holders arranged between a rotor axis and said pitched circle of dies; and die holder movement means for moving said die holders substantially simultaneously, said die holder movement means being provided on said die table.
Claim 2
Dependent Claim
56 words
Device for fixing dies in a die table of a rotary tabletting machine, comprising: dies provided in a pitched circle; die holders arranged between a rotor axis and said pitched circle of dies; and die holder movement means for moving said die holders substantially simultaneously, said die holder movement means being provided on said die table.
Claim 3
Dependent Claim
22 words
Device according to claim 1, wherein said die holders are arranged in holes that are radial in relation to said rotor axis.
Claim 4
Dependent Claim
26 words
Device according to claim 1, wherein said die holder movement means includes a hydraulic device, said die holders being designed as hydraulic pistons with conical heads.
Claim 5
Dependent Claim
50 words
Device according to claim 3, wherein said die holder movement means includes screw plugs provided with springs, said screw plugs being screwed into radial holes on an outer edge of said die table and die pins, which press said springs of said screw plugs, are arranged at said die holders.
Claim 6
Dependent Claim
26 words
Device according to claim 1, wherein said die holder movement means includes die holders designed as cams on a ring disc mounted in said die table.
Claim 7
Dependent Claim
49 words
Device according to claim 1, wherein said die holder movement means includes die holders formed as circle segments movable radially from an inside toward said dies, and a ring disc which is mounted in said die table and engages obliquely positioned elongated holes of said circle segments with pins.
Claim 8
Dependent Claim
16 words
Device according to claim 5, wherein said ring disc is driven by means of a pinion.
Claim 9
Dependent Claim
16 words
Device according to claim 6, wherein said ring disc is driven by means of a pinion.
Claim 10
Dependent Claim
48 words
Device according to claim 1, wherein said die holders are designed as lever pairs which are expanded by said spring elements and are mounted pivotable in said die table, said levers being actuated by push rods driven by a hydraulic device supplying pressure emitted radially from the inside.
References Cited (Backward Citations)
US2989781A
Cited
DE1164913B
Cited
DE1454820A1
Cited
DE3003238A1
Cited
US4764241A
Cited
US5004413A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2000-06-02 | 2000-12-02 | 2001-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-06-02 | 2004-12-02 | 2005-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-06-02 | 2008-12-02 | 2009-06-03 | $7700.00 | Window Closed / Lapsed |