Patent US3308728A successfully refreshed from Google Patents.
US3308728A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tamping machine
Assignee: Individual
•
Filing: 1964-08-28
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Granted: 1967-03-14
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Expires: 1984-08-28
Abstract
No abstract record available.
Inventors
- 👤 Gerald H Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:56
CPC Classifications
E; E02; E02D; E02D3/00; E02D3/02; E02D3/046; E02D3/068
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
A TAMPING MACHINE COMPRISING: A HOUSING HAVING A GENERALLY VERTICALLY ORIENTED TAMPING TUBE, A TAMPING SHOE MOUNTED ON THE BOTTOM OF SAID TAMPING TUBE, A WEIGHT BLOCK SLIDABLE WITHIN SAID TAMPING TUBE, A CRANK ARM, DRIVE MEANS ROTATING SAID CRANK ARM ABOUT A GENERALLY HORIZONTAL AXIS LYING IN FIRST VERTICAL PLANE, A CONNECTING ROD INTERCONECTING SAID CRANK ARM AND SAID WEIGHT BLOCK, THE VERTICAL CENTER LINE OF SAID ROD OSCILLATING IN IN A SECOND VERTICAL PLANE PERPENDICULAR TO SAID FIRST VERTICAL PLANE, AND TWO PAIRS OF BEARING ASSEMBLIES DISPOSED BETWEEN SAID WEIGHT BLOCK AND SAID TAMPING TUBE ON OPPOSITE SIDES OF SAID FIRST VERTICAL PLANE, THE TWO BEARING ASSEMBLIES OF EACH OF SAID PAIRS BEING DISPOSED ON OPPOSITE SIDES OF SAID SECOND VERTICAL PLANE.
Claim 2
Dependent Claim
124 words
A TAMPING MACHINE COMPRISING: A HOUSING HAVING A GENERALLY VERTICALLY ORIENTED TAMPING TUBE, A TAMPING SHOE MOUNTED ON THE BOTTOM OF SAID TAMPING TUBE, A WEIGHT BLOCK SLIDABLE WITHIN SAID TAMPING TUBE, A CRANK ARM, DRIVE MEANS ROTATING SAID CRANK ARM ABOUT A GENERALLY HORIZONTAL AXIS LYING IN FIRST VERTICAL PLANE, A CONNECTING ROD INTERCONECTING SAID CRANK ARM AND SAID WEIGHT BLOCK, THE VERTICAL CENTER LINE OF SAID ROD OSCILLATING IN IN A SECOND VERTICAL PLANE PERPENDICULAR TO SAID FIRST VERTICAL PLANE, AND TWO PAIRS OF BEARING ASSEMBLIES DISPOSED BETWEEN SAID WEIGHT BLOCK AND SAID TAMPING TUBE ON OPPOSITE SIDES OF SAID FIRST VERTICAL PLANE, THE TWO BEARING ASSEMBLIES OF EACH OF SAID PAIRS BEING DISPOSED ON OPPOSITE SIDES OF SAID SECOND VERTICAL PLANE.
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) | 1970-03-13 | 1970-09-12 | 1971-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-13 | 1974-09-12 | 1975-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-13 | 1978-09-12 | 1979-03-14 | $7700.00 | Window Closed / Lapsed |