US3366281A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spreader apparatus and drive mechanism therefor
Assignee: SWENSON SPREADER AND Manufacturing CO
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Filing: 1966-11-21
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Granted: 1968-01-30
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Expires: 1986-11-21
Abstract
No abstract record available.
Inventors
- 👤 Burl A Wilder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:57
CPC Classifications
E; E01; E01C; E01C19/00; E01C19/12; E01C19/20; E01C19/201; E01C19/202; E01C19/203
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
165 words
IN AN APPARATUS INCLUDING A VEHICLE, MEANS FOR PROPELLING THE VEHICLE, A HOPPER ON THE VEHICLE FOR HOLDING MATERIAL TO BE SPREAD, AND FEED MEANS FOR FEEDING MATERIAL FROM THE HOPPER AT A RATE CORRELATIVE WITH THE SPEED OF THE FEED MEANS, THE IMPROVEMENT COMPRISING: A SPINDLE, A GROUND-ENGAGING WHEEL ROTATABLY MOUNTED ON THE SPINDLE, MEANS FOR RESILIENTLY MOUNTING THE SPINDLE AND WHEEL ON THE VEHICLE FOR INDEPENDENT SUSPENSION TO ALLOW INDEPENDENT VERTICAL MOVEMENT OF SAID WHEEL AND SPINDLE, DRIVE MEANS INCLUDING A DRIVE SHAFT AND FLEXIBLE COUPLINGS, SAID DRIVE MEANS HAVING ONE END OPERATIVELY CONNECTED TO THE VERTICALLY MOVABLE WHEEL AND THE OTHER END OPERATIVELY CONNECTED TO THE FEED MEANS FOR DRIVING THE FEED MEANS RESPONSIVE TO ROTATION OF THE WHEEL WHEREBY MATERIAL IS FED FROM THE HOPPER AT A RATE CORRELATIVE TO THE SPEED OF THE VEHICLE, CLUTCH MEANS INTERPOSED BETWEEN THE SPINDLE AND THE FEED MEANS, AND MEANS FOR SELECTIVELY OPERATING THE CLUTCH MEANS FOR SELECTIVE DISCHARGE OF MATERIAL FROM THE HOPPER.
Claim 2
Dependent Claim
165 words
IN AN APPARATUS INCLUDING A VEHICLE, MEANS FOR PROPELLING THE VEHICLE, A HOPPER ON THE VEHICLE FOR HOLDING MATERIAL TO BE SPREAD, AND FEED MEANS FOR FEEDING MATERIAL FROM THE HOPPER AT A RATE CORRELATIVE WITH THE SPEED OF THE FEED MEANS, THE IMPROVEMENT COMPRISING: A SPINDLE, A GROUND-ENGAGING WHEEL ROTATABLY MOUNTED ON THE SPINDLE, MEANS FOR RESILIENTLY MOUNTING THE SPINDLE AND WHEEL ON THE VEHICLE FOR INDEPENDENT SUSPENSION TO ALLOW INDEPENDENT VERTICAL MOVEMENT OF SAID WHEEL AND SPINDLE, DRIVE MEANS INCLUDING A DRIVE SHAFT AND FLEXIBLE COUPLINGS, SAID DRIVE MEANS HAVING ONE END OPERATIVELY CONNECTED TO THE VERTICALLY MOVABLE WHEEL AND THE OTHER END OPERATIVELY CONNECTED TO THE FEED MEANS FOR DRIVING THE FEED MEANS RESPONSIVE TO ROTATION OF THE WHEEL WHEREBY MATERIAL IS FED FROM THE HOPPER AT A RATE CORRELATIVE TO THE SPEED OF THE VEHICLE, CLUTCH MEANS INTERPOSED BETWEEN THE SPINDLE AND THE FEED MEANS, AND MEANS FOR SELECTIVELY OPERATING THE CLUTCH MEANS FOR SELECTIVE DISCHARGE OF MATERIAL FROM THE HOPPER.
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) | 1971-01-29 | 1971-07-31 | 1972-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-29 | 1975-07-31 | 1976-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-29 | 1979-07-31 | 1980-01-30 | $7700.00 | Window Closed / Lapsed |