US3221448A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Belt grinding machine
Assignee: Individual
•
Filing: 1961-07-11
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Granted: 1965-12-07
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Expires: 1981-07-11
Abstract
No abstract record available.
Inventors
- 👤 Heesemann Karl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:04
CPC Classifications
B; B24; B24B; B24B21/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
A BELT GRINDING MACHINE COMPRISING AN ENDLESS GRINDING BELT, A PRESSURE BEAM ARRANGED FOR PRESSING THE GRINDING BELT TOWARD A WORKPIECE, SAID WORKPIECE BEING MOVED THROUGH THE MACHINE TRANSVERSELY TO THE DIRECTION OF MOVE MENT OF THE GRINDING BELT, SAID PRESSURE BEAM BEING EXTENDED OVER THE ENTIRE GRINDING WIDTH OF THE MACHINE, A SLIDING ADJUSTING DEVICE MOVABLE PARALLEL TO THE PRESSURE BEAM AND ADJACENT THERETO, A PLURALITY OF PAIRS OF LEVERS MOVABLY MOUNTED ON THE PRESSURE BEAM AND ALTERNATELY CONTACTED BY SAID SLIDING ADJUSTING DEVICE AND A PLURALITY OF SUPPORTING ELEMENTS CONNECTED TO SAID PAIRS OF LEVERS AND ARRANGED FOR SUPPORTING THE EFFECTIVE PRESSURE SURFACE OF SAID PRESSURE BEAM AND VARYING THE HEIGHT OF SAID PRESSURE SURFACE AS THE LEVERS ARE CONTACTED BY THE SLIDING ADJUSTING DEVICE.
Claim 2
Dependent Claim
127 words
A BELT GRINDING MACHINE COMPRISING AN ENDLESS GRINDING BELT, A PRESSURE BEAM ARRANGED FOR PRESSING THE GRINDING BELT TOWARD A WORKPIECE, SAID WORKPIECE BEING MOVED THROUGH THE MACHINE TRANSVERSELY TO THE DIRECTION OF MOVE MENT OF THE GRINDING BELT, SAID PRESSURE BEAM BEING EXTENDED OVER THE ENTIRE GRINDING WIDTH OF THE MACHINE, A SLIDING ADJUSTING DEVICE MOVABLE PARALLEL TO THE PRESSURE BEAM AND ADJACENT THERETO, A PLURALITY OF PAIRS OF LEVERS MOVABLY MOUNTED ON THE PRESSURE BEAM AND ALTERNATELY CONTACTED BY SAID SLIDING ADJUSTING DEVICE AND A PLURALITY OF SUPPORTING ELEMENTS CONNECTED TO SAID PAIRS OF LEVERS AND ARRANGED FOR SUPPORTING THE EFFECTIVE PRESSURE SURFACE OF SAID PRESSURE BEAM AND VARYING THE HEIGHT OF SAID PRESSURE SURFACE AS THE LEVERS ARE CONTACTED BY THE SLIDING ADJUSTING DEVICE.
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) | 1968-12-06 | 1969-06-07 | 1969-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-06 | 1973-06-07 | 1973-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-06 | 1977-06-07 | 1977-12-07 | $7700.00 | Window Closed / Lapsed |