Patent US3130843A successfully refreshed from Google Patents.
US3130843A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Excavators
Assignee: JC Bamford Excavators Ltd
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Filing: 1962-05-23
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Granted: 1964-04-28
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Expires: 1982-05-23
Abstract
No abstract record available.
Inventors
- 👤 Alec J Kelly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:10
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/28; E02F3/30; E02F3/32; E02F3/36; E02F3/40
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
153 words
A REVERSIBLE EXCAVATING BUCKET FOR A MECHANICAL EXCAVATOR OF THE TYPE SPECIFIED COMPRISING SPACED SIDE WALLS, A TOP WALL EXTENDING BETWEEN THE UPPER EDGES OF THE SIDE WALLS, A PAIR OF SPACED APART UPRIGHT MAIN WEBS EXTENDING LONGITUDINALLY OVER THE INTERMEDIATE REGION OF THE TOP WALL FROM END-TO-END THEREOF, AN INWARDLY PROJECTING COLLAR SECURED TO THE INNER FACE OF EACH MAIN WEB AT THE CENTRE PORTION THEREOF SO AS TO HAVE SAID COLLARS IN AXIAL ALIGNMENT, TWO SLEEVE MEMBERS MOUNTED IN EACH MAIN WEB, ONE AT EACH END THEREOF, EACH SLEEVE MEMBER BEING SECURED AT ITS ONE END IN THE ASSOCIATED MAIN WEB AND EXTENDING OUTWARDLY FROM THE MAIN WEB SO AS TO HAVE THE TWO SLEEVE MEMBERS AT EACH PAIR OF ENDS OF THE MAIN WEBS IN AXIAL ALIGNMENT, FURTHER UPRIGHT WEBS SECURED TO THE TOP WALL AND THE OUTER ENDS OF SAID SLEEVE MEMBERS BEING SECURED IN SAID FURTHER UPRIGHT WEBS.
Claim 2
Dependent Claim
153 words
A REVERSIBLE EXCAVATING BUCKET FOR A MECHANICAL EXCAVATOR OF THE TYPE SPECIFIED COMPRISING SPACED SIDE WALLS, A TOP WALL EXTENDING BETWEEN THE UPPER EDGES OF THE SIDE WALLS, A PAIR OF SPACED APART UPRIGHT MAIN WEBS EXTENDING LONGITUDINALLY OVER THE INTERMEDIATE REGION OF THE TOP WALL FROM END-TO-END THEREOF, AN INWARDLY PROJECTING COLLAR SECURED TO THE INNER FACE OF EACH MAIN WEB AT THE CENTRE PORTION THEREOF SO AS TO HAVE SAID COLLARS IN AXIAL ALIGNMENT, TWO SLEEVE MEMBERS MOUNTED IN EACH MAIN WEB, ONE AT EACH END THEREOF, EACH SLEEVE MEMBER BEING SECURED AT ITS ONE END IN THE ASSOCIATED MAIN WEB AND EXTENDING OUTWARDLY FROM THE MAIN WEB SO AS TO HAVE THE TWO SLEEVE MEMBERS AT EACH PAIR OF ENDS OF THE MAIN WEBS IN AXIAL ALIGNMENT, FURTHER UPRIGHT WEBS SECURED TO THE TOP WALL AND THE OUTER ENDS OF SAID SLEEVE MEMBERS BEING SECURED IN SAID FURTHER UPRIGHT WEBS.
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 |