US3128589A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Devices for laterally displacing grass, hay or other material lying on the ground
Assignee: C Van der Lely NV
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Filing: 1960-06-07
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Granted: 1964-04-14
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Expires: 1980-06-07
Abstract
No abstract record available.
Inventors
- 👤 Lely Cornelis Van Der
- 👤 Lely Ary Van Der
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:26
CPC Classifications
A; A01; A01D; A01D78/00; A01D78/02; A01D78/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
173 words
A DEVICE FOR LATERALLY DISPLACING MATERIAL ON THE GROUND COMPRISING SUPPORT MEANS ADAPTED FOR ROTATION, A RAKING BEAM CONNECTED TO THE SUPPORT MEANS AND MOVABLE THEREWITH TO DESCRIBE A PATH OF MOVEMENT AND RAKING MEANS SUPPORTED ON THE RAKING BEAM AND INCLUDING A TOOTH HAVING AN END DESCRIBING A PATH IN INTERFERENCE WITH THE GROUND ALONG A PORTION OF THE PATH OF THE RAKING BEAM, SAID RAKING MEANS FURTHER COMPRISING MEANS SUPPORTING SAID TOOTH FROM THE RAKING BEAM AND INCLUDING A TORSION BAR, SAID TORSION BAR AND TOOTH INITIALLY LYING IN A COMMON PLANE, SAID TORSION BAR BEING SECURED TO SAID RAKING BEAM AND EXTENDING THEREFROM TO SECURE THE TOOTH FOR ELASTIC ROTATION ABOUT AN AXIS INCLINED WITH RESPECT TO THE RAKING BEAM AS THE TOOTH CONTACTS THE GROUND, SAID TORSION BAR BEING ELASTICALLY AND TORSIONALLY DEFORMED DURING ROTATION OF SAID TOOTH RELATIVE TO SAID BEAM AND RESTORING THE TOOTH TO THE ORIGINAL POSITION THEREOF AS THE BEAM DESCRIBES THE PORTION OF THE PATH IN WHICH THE TOOTH IS FREE OF THE GROUND.
Claim 2
Independent Claim
173 words
A DEVICE FOR LATERALLY DISPLACING MATERIAL ON THE GROUND COMPRISING SUPPORT MEANS ADAPTED FOR ROTATION, A RAKING BEAM CONNECTED TO THE SUPPORT MEANS AND MOVABLE THEREWITH TO DESCRIBE A PATH OF MOVEMENT AND RAKING MEANS SUPPORTED ON THE RAKING BEAM AND INCLUDING A TOOTH HAVING AN END DESCRIBING A PATH IN INTERFERENCE WITH THE GROUND ALONG A PORTION OF THE PATH OF THE RAKING BEAM, SAID RAKING MEANS FURTHER COMPRISING MEANS SUPPORTING SAID TOOTH FROM THE RAKING BEAM AND INCLUDING A TORSION BAR, SAID TORSION BAR AND TOOTH INITIALLY LYING IN A COMMON PLANE, SAID TORSION BAR BEING SECURED TO SAID RAKING BEAM AND EXTENDING THEREFROM TO SECURE THE TOOTH FOR ELASTIC ROTATION ABOUT AN AXIS INCLINED WITH RESPECT TO THE RAKING BEAM AS THE TOOTH CONTACTS THE GROUND, SAID TORSION BAR BEING ELASTICALLY AND TORSIONALLY DEFORMED DURING ROTATION OF SAID TOOTH RELATIVE TO SAID BEAM AND RESTORING THE TOOTH TO THE ORIGINAL POSITION THEREOF AS THE BEAM DESCRIBES THE PORTION OF THE PATH IN WHICH THE TOOTH IS FREE OF THE GROUND.
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) | 1967-04-14 | 1967-10-14 | 1968-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-14 | 1971-10-14 | 1972-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-14 | 1975-10-14 | 1976-04-14 | $7700.00 | Window Closed / Lapsed |