US3623407A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vibratory compaction roller
Assignee: Ingersoll Rand Co
•
Filing: 1969-11-21
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Granted: 1971-11-30
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Expires: 1989-11-21
Abstract
Abstract A VIBRATORY COMPACTION ROLLER WHICH INCLUDES A DRUM ROTATABLY MOUNTED ON A FRAME. A CENTRAL SHAFT HAVING AN ECCENTRIC WEIGHT IS ROTATABLY MOUNTED WITHIN THE DRUM. A MOTOR ROTATES THE CENTRAL SHAFT TO CAUSE VIBRATION OF THE DRUM. THE BEARINGS WHICH MOUNT THE CENTRAL SHAFT ARE SEPARATE FROM THE BEARINGS WHICH MOUNT THE DRUM ON THE FRAME. SHOCK ABSORBERS ARE POSITIONED BETWEEN THE DRUM AND THE BEARINGS MOUNTING THE DRUM TO ISOLATE THE FRAME AND THE BEARINGS MOUNTING THE DRUM FROM THE DRUM, A SEALED RESERVOIR FILLED WITH A LUBRICANT IS PROVIDED IN THE DRUM FOR CONTINUOUSLY LUBRICATING THE BEARINGS.
Inventors
- 👤 Seymour Dresher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:03
CPC Classifications
E; E01; E01C; E01C19/00; E01C19/22; E01C19/23; E01C19/28; E01C19/281
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-11-29 | 1975-05-31 | 1975-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-29 | 1979-05-31 | 1979-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-29 | 1983-05-31 | 1983-11-30 | $7700.00 | Window Closed / Lapsed |