US3130845A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Front end loaders
Assignee: Dempster Systems Inc
•
Filing: 1961-05-19
•
Granted: 1964-04-28
•
Expires: 1981-05-19
Abstract
No abstract record available.
Inventors
- 👤 Henry C French
- 👤 Neil F Wender
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:42
CPC Classifications
B; B65; B65F; B65F3/00; B65F3/02; B65F3/04; B60; B60P; B60P1/00; B60P1/48; B60P1/50; B65F2003/0263; B65F2003/0279
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
117 words
IN CONTAINER HANDLING EQUIPMENT INCLUDING A BODY HAVING AN OPENING AT THE TOP THEREOF, AND A PAIR OF ARMS FOR MOVING A CONTAINER OVER THE OPENING, THE COMBINATION OF A COVER FOR THE OPENING, SAID COVER BEING PIVOTALLY CONNECTED TO THE BODY ALONG ONE END OF THE OPENING FOR SWINGING MOVEMENT ABOUT A HORIZONTAL AXIS, SECTOR-SHAPED SHIELDS ATTACHED TO OPPOSITE SIDES OF THE COVER AND MOVABLE WITH THE COVER INTO POSITION ALONG OPPOSITE SIDES OF THE OPENING WHEN THE COVER IS OPEN, AND ELONGATED SHIELDS ATTACHED TO EACH ARM AND POSITIONED THEREON TO EXTEND UPWARDLY ALONG SAID OPPOSITE SIDES OF THE OPENING IN LINE WITH THE SECTOR-SHAPED SHIELDS AFTER THE ARMS MOVE THE CONTAINER OVER THE OPENING.
Claim 2
Dependent Claim
117 words
IN CONTAINER HANDLING EQUIPMENT INCLUDING A BODY HAVING AN OPENING AT THE TOP THEREOF, AND A PAIR OF ARMS FOR MOVING A CONTAINER OVER THE OPENING, THE COMBINATION OF A COVER FOR THE OPENING, SAID COVER BEING PIVOTALLY CONNECTED TO THE BODY ALONG ONE END OF THE OPENING FOR SWINGING MOVEMENT ABOUT A HORIZONTAL AXIS, SECTOR-SHAPED SHIELDS ATTACHED TO OPPOSITE SIDES OF THE COVER AND MOVABLE WITH THE COVER INTO POSITION ALONG OPPOSITE SIDES OF THE OPENING WHEN THE COVER IS OPEN, AND ELONGATED SHIELDS ATTACHED TO EACH ARM AND POSITIONED THEREON TO EXTEND UPWARDLY ALONG SAID OPPOSITE SIDES OF THE OPENING IN LINE WITH THE SECTOR-SHAPED SHIELDS AFTER THE ARMS MOVE THE CONTAINER OVER THE OPENING.
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) | 1967-04-28 | 1967-10-28 | 1968-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-28 | 1971-10-28 | 1972-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-28 | 1975-10-28 | 1976-04-28 | $7700.00 | Window Closed / Lapsed |