Patent US3343693A successfully refreshed from Google Patents.
US3343693A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bucket control mechanism for power shovels
Assignee: Individual
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Filing: 1965-12-23
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Granted: 1967-09-26
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Expires: 1985-12-23
Abstract
No abstract record available.
Inventors
- 👤 Carl P Becker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:21
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/28; E02F3/36; E02F3/3604; E02F3/3677; E02F3/42; E02F3/43; E02F3/435; E02F3/437
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
A POWER SHOVEL COMPRISING A BOOM, A DIPPER STICK PIVOTED TO SAID BOOM, A BUCKET, PIVOT MEANS PIVOTALLY ATTACHING SAID BUCKET TO SAID DIPPER STICK FOR MOVEMENT OF SAID BUCKET ABOUT AN AXIS NORMAL TO THE PLANE IN WHICH SAID DIPPER STICK SWINGS, MEANS FOR SHIFTING SAID BUCKET ABOUT SAID PIVOT AXIS IN RESPONSE TO A CHANGE IN THE ANGLE BETWEEN SAID DIPPER STICK AND SAID BOOM AND COMPRISING A MOTOR FOR MOVING SAID BUCKET ABOUT SAID PIVOT MEANS, AND CONTROL MEANS FOR SAID MOTOR OPERATIVE IN RESPONSE TO A CHANGE IN ANGLE BETWEEN SAID DIPPER STICK AND SAID BOOM.
Claim 2
Dependent Claim
100 words
A POWER SHOVEL COMPRISING A BOOM, A DIPPER STICK PIVOTED TO SAID BOOM, A BUCKET, PIVOT MEANS PIVOTALLY ATTACHING SAID BUCKET TO SAID DIPPER STICK FOR MOVEMENT OF SAID BUCKET ABOUT AN AXIS NORMAL TO THE PLANE IN WHICH SAID DIPPER STICK SWINGS, MEANS FOR SHIFTING SAID BUCKET ABOUT SAID PIVOT AXIS IN RESPONSE TO A CHANGE IN THE ANGLE BETWEEN SAID DIPPER STICK AND SAID BOOM AND COMPRISING A MOTOR FOR MOVING SAID BUCKET ABOUT SAID PIVOT MEANS, AND CONTROL MEANS FOR SAID MOTOR OPERATIVE IN RESPONSE TO A CHANGE IN ANGLE BETWEEN SAID DIPPER STICK AND SAID BOOM.
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) | 1970-09-25 | 1971-03-27 | 1971-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-25 | 1975-03-27 | 1975-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-25 | 1979-03-27 | 1979-09-26 | $7700.00 | Window Closed / Lapsed |