Patent US3302808A successfully refreshed from Google Patents.
US3302808A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Container loading and unloading mechanism
Assignee: Dempster Systems Inc
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Filing: 1965-01-11
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Granted: 1967-02-07
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Expires: 1985-01-11
Abstract
No abstract record available.
Inventors
- 👤 William A Herpich
- 👤 Charles R Cooley
- 👤 Georgia Trust Company Of
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:37
CPC Classifications
B; B60; B60P; B60P1/00; B60P1/64; B60P1/6418; B60P1/6454; B65; B65D; B65D90/00; B65D90/12; B65D90/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
149 words
IN TRANSPORTING EQUIPMENT OF THE CHARACTER DESERIBED, THE COMBINATION WITH A MOTOR VEHICLE CHASSIS, OF A TILTING FRAME EXTENDING LENGTHWISE OF THE CHASSIS, MEANS MOUNTING THE TILTING FRAME ON THE CHASSIS FOR SWINGING MOVEMENT TO RAISED AND LOWERED POSITIONS WITH RESPECT THERETO, A SEPARATE CONTAINER ADAPTED TO BE LOADED SEPARATE AND APART FROM THE CHASSIS, SPROCKETS MOUNTED AT OPPOSITE ENDS OF THE TILTING FRAME, POWER DRIVEN CHAIN MEANS EXTENDING BETWEEN THE SPROCKETS, AND MEANS ATTACHED TO THE CHAIN MEANS FOR DETACHABLE ENGAGEMENT WITH THE CONTAINER AND BEING OPERABLE UPON ENGAGEMENT FORWARD IN ONE DIRECTION TO ENGAGE THE CONTAINER AT ONE POINT AND THEN BACK IN THE OPPOSITE DIRECTION TO MOVE THE CONTAINER ONE STEP AND THEREAFTER FORWARD AGAIN AND INTO ENGAGEMENT WITH THE CONTAINER AT A SECOND POINT INTO THEN BACK TO MOVE THE CONTAINER A SECOND STEP FOR MOVING THE CONTAINER ONTO OR OFF OF THE TILTING FRAME.
Claim 2
Dependent Claim
149 words
IN TRANSPORTING EQUIPMENT OF THE CHARACTER DESERIBED, THE COMBINATION WITH A MOTOR VEHICLE CHASSIS, OF A TILTING FRAME EXTENDING LENGTHWISE OF THE CHASSIS, MEANS MOUNTING THE TILTING FRAME ON THE CHASSIS FOR SWINGING MOVEMENT TO RAISED AND LOWERED POSITIONS WITH RESPECT THERETO, A SEPARATE CONTAINER ADAPTED TO BE LOADED SEPARATE AND APART FROM THE CHASSIS, SPROCKETS MOUNTED AT OPPOSITE ENDS OF THE TILTING FRAME, POWER DRIVEN CHAIN MEANS EXTENDING BETWEEN THE SPROCKETS, AND MEANS ATTACHED TO THE CHAIN MEANS FOR DETACHABLE ENGAGEMENT WITH THE CONTAINER AND BEING OPERABLE UPON ENGAGEMENT FORWARD IN ONE DIRECTION TO ENGAGE THE CONTAINER AT ONE POINT AND THEN BACK IN THE OPPOSITE DIRECTION TO MOVE THE CONTAINER ONE STEP AND THEREAFTER FORWARD AGAIN AND INTO ENGAGEMENT WITH THE CONTAINER AT A SECOND POINT INTO THEN BACK TO MOVE THE CONTAINER A SECOND STEP FOR MOVING THE CONTAINER ONTO OR OFF OF THE TILTING FRAME.
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) | 1970-02-06 | 1970-08-08 | 1971-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-06 | 1974-08-08 | 1975-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-06 | 1978-08-08 | 1979-02-07 | $7700.00 | Window Closed / Lapsed |