Patent US3268058A successfully refreshed from Google Patents.
US3268058A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sinuous conveyor
Assignee: Westinghouse Air Brake Co
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Filing: 1964-12-17
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Granted: 1966-08-23
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Expires: 1984-12-17
Abstract
No abstract record available.
Inventors
- 👤 Roger M Buckeridge
- 👤 Conrad J Ricker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:25
CPC Classifications
E; E21; E21F; E21F13/00; E21F13/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
137 words
A SINUOUS MOBILE SELF-POWERED STEERABLE CONVEYING APPARATUS COMPRISING: A SERIES OF PIVOTALLY INTERCONNECTED CASCADING CONVEYORS; ONE END OF EACH CONVEYOR BEING GROUND-SUPPORTED BY A PAIR OF PIVOTED WHEELS, A REVERSIBLE ELECTRIC TRAM MOTOR INDIVIDUALLY CONNECTED DIRECTLY TO EACH WHEEL, AN ORBITALLY MOVABLE CONVEYOR BELT DRIVEN FROM A POWER SOURCE, STEERING MEANS INCLUDING A STEERING LINKAGE ASSOCIATED WITH EACH WHEEL; A STEERING SCREW CONNECTED TO BOTH LINKAGES AND EFFECTIVE, WHEN ROTATED IN ONE DIRECTION OR THE OTHER, TO STEER EACH PAIR OF WHEELS TO RIGHT OR LEFT; STEERING MOTOR MEANS; FIRST AND SECOND STEERING CLUTCHES CONNECTED BETWEEN THE STEERING MOTOR MEANS AND THE SCREW AND EFFECTIVE WHEN INDIVIDUALLY ACTUATED TO ROTATE THE SCREW IN OPPOSITE DIRECTIONS; STEERING CLUTCH CONTROL MEANS SELECTIVELY OPERABLE TO ACTUATE EITHER OF SAID CLUTCHES INDIVIDUALLY TO ROTATE THE STEERING SCREW IN A SELECTED DIRECTION.
Claim 2
Dependent Claim
137 words
A SINUOUS MOBILE SELF-POWERED STEERABLE CONVEYING APPARATUS COMPRISING: A SERIES OF PIVOTALLY INTERCONNECTED CASCADING CONVEYORS; ONE END OF EACH CONVEYOR BEING GROUND-SUPPORTED BY A PAIR OF PIVOTED WHEELS, A REVERSIBLE ELECTRIC TRAM MOTOR INDIVIDUALLY CONNECTED DIRECTLY TO EACH WHEEL, AN ORBITALLY MOVABLE CONVEYOR BELT DRIVEN FROM A POWER SOURCE, STEERING MEANS INCLUDING A STEERING LINKAGE ASSOCIATED WITH EACH WHEEL; A STEERING SCREW CONNECTED TO BOTH LINKAGES AND EFFECTIVE, WHEN ROTATED IN ONE DIRECTION OR THE OTHER, TO STEER EACH PAIR OF WHEELS TO RIGHT OR LEFT; STEERING MOTOR MEANS; FIRST AND SECOND STEERING CLUTCHES CONNECTED BETWEEN THE STEERING MOTOR MEANS AND THE SCREW AND EFFECTIVE WHEN INDIVIDUALLY ACTUATED TO ROTATE THE SCREW IN OPPOSITE DIRECTIONS; STEERING CLUTCH CONTROL MEANS SELECTIVELY OPERABLE TO ACTUATE EITHER OF SAID CLUTCHES INDIVIDUALLY TO ROTATE THE STEERING SCREW IN A SELECTED DIRECTION.
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) | 1969-08-22 | 1970-02-21 | 1970-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-22 | 1974-02-21 | 1974-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-22 | 1978-02-21 | 1978-08-23 | $7700.00 | Window Closed / Lapsed |