Patent US3153476A successfully refreshed from Google Patents.
US3153476A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Material handling machines
Assignee: Atlas Copco AB
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Filing: 1962-06-29
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Granted: 1964-10-20
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Expires: 1982-06-29
Abstract
No abstract record available.
Inventors
- 👤 Barendsen Pieter
- 👤 Berglund Karl Bertil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:28
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/46; E02F3/52
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
A SELF-PROPELLED APPARATUS OF THE CHARACTER DESCRIBED FOR ENGAGING AND REMOVING LOSE ROCK AND LIKE MATERIAL FROM LOW, RELATIVELY INACCESSIBLE PLACES, COMPRISING A DRUM, DISCS DISPOSED AT EACH END OF SAID DRUM, A PLURALITY OF VANES DISPOSED RADIALLY IN SPACED RELATIONSHIP AROUND THE CIRCUMFRENCE OF SAID DRUM AND EXTENDING FROM ONE SAID DISC TO THE OTHER FOR SUPPORTING AND PROPELLING SAID DRUM UPON ROTATION THEREOF AND FOR ENGAGING SAID MATERIAL, TRUNNIOUS DISPOSED CENTRALLY IN EACH END OF SAID DRUM WITH THE AXES THEREOF AXIALLY ALIGNED WITH SAID DRUM AXIS AND EXTENDING THROUGH SAID DISCS, POWER MEANS ROTATABLY DISPOSED ON SAID TRUNNIOUS AND AFFIXED
Claim 2
Dependent Claim
103 words
A SELF-PROPELLED APPARATUS OF THE CHARACTER DESCRIBED FOR ENGAGING AND REMOVING LOSE ROCK AND LIKE MATERIAL FROM LOW, RELATIVELY INACCESSIBLE PLACES, COMPRISING A DRUM, DISCS DISPOSED AT EACH END OF SAID DRUM, A PLURALITY OF VANES DISPOSED RADIALLY IN SPACED RELATIONSHIP AROUND THE CIRCUMFRENCE OF SAID DRUM AND EXTENDING FROM ONE SAID DISC TO THE OTHER FOR SUPPORTING AND PROPELLING SAID DRUM UPON ROTATION THEREOF AND FOR ENGAGING SAID MATERIAL, TRUNNIOUS DISPOSED CENTRALLY IN EACH END OF SAID DRUM WITH THE AXES THEREOF AXIALLY ALIGNED WITH SAID DRUM AXIS AND EXTENDING THROUGH SAID DISCS, POWER MEANS ROTATABLY DISPOSED ON SAID TRUNNIOUS AND AFFIXED
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) | 1967-10-20 | 1968-04-20 | 1968-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-10-20 | 1972-04-20 | 1972-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-10-20 | 1976-04-20 | 1976-10-20 | $7700.00 | Window Closed / Lapsed |