US3146960A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grinding machine
Assignee: VIKING Manufacturing CO
•
Filing: 1961-05-15
•
Granted: 1964-09-01
•
Expires: 1981-05-15
Abstract
No abstract record available.
Inventors
- 👤 Graff Peter C De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:21
CPC Classifications
A; A01; A01F; A01F11/00; A01F11/06; B; B02; B02C; B02C21/00; B02C21/02; B02C4/00; B02C4/02; B02C4/08; B02C9/00; B02C9/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
182 words
IN A GRINDING MACHINE, THE COMBINATION OF A HOUSING HAVING AN INLET AT THE TOP AND A DISCHARGE AT THE BOTTOM THEREOF, REVERSELY DRIVEN COACTING SHREDDER UNITS DISPOSED IN SAID HOUSING BELOW SAID INLET TO RECEIVE PRODUCTS THEREFROM, EACH UNIT COMPRISING A DRIVEN SHAFT, A PLURALITY OF DISC-LIKE AXIALLY SPACED TOOTHED SHREDDER BLADES AND DISC-LIKE SPACER MEMBERS DISPOSED BETWEEN SAID BLADES WITH THE PERIPHERIES THEREOF SPACED RADIALLY INWARD RELATIVE TO THE PERIPHERIES OF THE BLADES, PERIPHERAL PORTIONS OF SUBSTANTIAL RADIAL WIDTH OF THE BLADES OF ONE OF SAID UNITS BEING IN INTERLAPPING RELATION WITH CORRESPONDING PERIPHERAL PORTIONS OF THE BLADE OF THE OTHER UNIT, REVERSELY DRIVEN GRINDING CYLINDERS DISPOSED IN DOWNWARDLY SPACED RELATION TO SAID SHREDDER UNITS TO RECEIVE MATERIAL DISCHARGED THEREFROM, SAID GRINDING CYLINDERS COMPRISING CYLINDRICAL BODY PORTIONS AND LONGITUDINALLY CORRUGATED SLEEVES SUPPORTEDLY MOUNTED THEREON, AT LEAST ONE OF SAID CYLINDERS BEING MOUNTED FOR ADJUSTMENT TO AND FROM THE OTHER, AND A SPREADER DISPOSED BETWEEN SAID SHREDDER UNIT AND SAID GRINDING CYLINDERS AND COMPRISING A DRIVEN SHAFT AND A PLURALITY OF DISCS MOUNTED THEREON IN INCLINED RELATION TO THE AXIS THEREOF.
Claim 2
Dependent Claim
182 words
IN A GRINDING MACHINE, THE COMBINATION OF A HOUSING HAVING AN INLET AT THE TOP AND A DISCHARGE AT THE BOTTOM THEREOF, REVERSELY DRIVEN COACTING SHREDDER UNITS DISPOSED IN SAID HOUSING BELOW SAID INLET TO RECEIVE PRODUCTS THEREFROM, EACH UNIT COMPRISING A DRIVEN SHAFT, A PLURALITY OF DISC-LIKE AXIALLY SPACED TOOTHED SHREDDER BLADES AND DISC-LIKE SPACER MEMBERS DISPOSED BETWEEN SAID BLADES WITH THE PERIPHERIES THEREOF SPACED RADIALLY INWARD RELATIVE TO THE PERIPHERIES OF THE BLADES, PERIPHERAL PORTIONS OF SUBSTANTIAL RADIAL WIDTH OF THE BLADES OF ONE OF SAID UNITS BEING IN INTERLAPPING RELATION WITH CORRESPONDING PERIPHERAL PORTIONS OF THE BLADE OF THE OTHER UNIT, REVERSELY DRIVEN GRINDING CYLINDERS DISPOSED IN DOWNWARDLY SPACED RELATION TO SAID SHREDDER UNITS TO RECEIVE MATERIAL DISCHARGED THEREFROM, SAID GRINDING CYLINDERS COMPRISING CYLINDRICAL BODY PORTIONS AND LONGITUDINALLY CORRUGATED SLEEVES SUPPORTEDLY MOUNTED THEREON, AT LEAST ONE OF SAID CYLINDERS BEING MOUNTED FOR ADJUSTMENT TO AND FROM THE OTHER, AND A SPREADER DISPOSED BETWEEN SAID SHREDDER UNIT AND SAID GRINDING CYLINDERS AND COMPRISING A DRIVEN SHAFT AND A PLURALITY OF DISCS MOUNTED THEREON IN INCLINED RELATION TO THE AXIS THEREOF.
References Cited (Backward Citations)
US147316A
Cited
US236104A
Cited
US259858A
Cited
US271518A
Cited
US287482A
Cited
US308760A
Cited
US310374A
Cited
GB189807504A
Cited
US926168A
Cited
US1024168A
Cited
US1872967A
Cited
GB414007A
Cited
US2235968A
Cited
US2306427A
Cited
US2366619A
Cited
US2618439A
Cited
US2753908A
Cited
US2903193A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-09-01 | 1968-03-02 | 1968-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-01 | 1972-03-02 | 1972-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-01 | 1976-03-02 | 1976-09-01 | $7700.00 | Window Closed / Lapsed |