US3261304A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drives for overhead haulage vehicles
Assignee: ANGLO TRANSVAAL CONS INVEST CO
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Filing: 1965-07-06
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Granted: 1966-07-19
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Expires: 1985-07-06
Abstract
No abstract record available.
Inventors
- 👤 Herbert V Henderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:52
CPC Classifications
B; B61; B61C; B61C15/00; B61C15/04; B61C13/00; B61C13/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
A LOCOMOTIVE ADAPTED TO BE SUSPENDED FROM AN OVERHEAD TRACK, SAID LOCOMOTIVE COMPRISING A RIGID FRAME, TWO PAIRS OF FREE RUNNING WHEELS CARRIED BY THE FRAME AND LOCATED TOWARDS THE LOGITUDINAL ENDS THEREOF, A DRIVEN WHEEL POSITIONED TO ENGAGE AN OPPOSITE SURFACE OF SAID TRACK TO THAT ENGAGED BY THE RUNNING WHEELS, A PAIR OF SWINGABLE LINKS SUPPORTING SAID DRIVEN WHEEL CENTRALLY BETWEEN THE FREE RUNNING WHEELS AND A FURTHER WHEEL LOCATED TO ENGAGE AN OPPOSITE SURFACE OF THE TRACK TO THAT ENGAGEABLE BY THE DRIVEN WHEEL, SAID SWINGEABLE LINKS
Claim 2
Dependent Claim
90 words
A LOCOMOTIVE ADAPTED TO BE SUSPENDED FROM AN OVERHEAD TRACK, SAID LOCOMOTIVE COMPRISING A RIGID FRAME, TWO PAIRS OF FREE RUNNING WHEELS CARRIED BY THE FRAME AND LOCATED TOWARDS THE LOGITUDINAL ENDS THEREOF, A DRIVEN WHEEL POSITIONED TO ENGAGE AN OPPOSITE SURFACE OF SAID TRACK TO THAT ENGAGED BY THE RUNNING WHEELS, A PAIR OF SWINGABLE LINKS SUPPORTING SAID DRIVEN WHEEL CENTRALLY BETWEEN THE FREE RUNNING WHEELS AND A FURTHER WHEEL LOCATED TO ENGAGE AN OPPOSITE SURFACE OF THE TRACK TO THAT ENGAGEABLE BY THE DRIVEN WHEEL, SAID SWINGEABLE LINKS
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) | 1969-07-18 | 1970-01-17 | 1970-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-18 | 1974-01-17 | 1974-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-18 | 1978-01-17 | 1978-07-19 | $7700.00 | Window Closed / Lapsed |