US3149737A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic shovels
Assignee: Poclain SA
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Filing: 1963-05-15
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Granted: 1964-09-22
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Expires: 1983-05-15
Abstract
No abstract record available.
Inventors
- 👤 Guinot Gabriel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:28
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/28; E02F3/30; E02F3/307; E02F3/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
168 words
HYDRAULIC SHOVEL FOR USE INTER ALIA FOR OFFSET WORKING, COMPRISING: A SUPPORTING FRAME; A BOOM HAVING ONE END PIVOTALLY CONNECTED TO SAID FRAME FOR ROTATION ABOUT A FIRST HORIZONTAL AXIS; AND A BALANCE BEAM PIVOTALLY CONNECTED TO THE OTHER END OF SAID BOOM FOR ROTATION ABOUT A SECOND HORIZONTAL AXIS WHICH IS PARALLEL WITH SAID FIRST AXIS; SAID BOOM COMPRISING A PAIR OF TERMINAL PORTIONS AND AN INTERMEDIATE PORTION CONNECTED THEREBETWEEN; SAID INTERMEDIATE PORTION COMPRISING A PAIR OF EQUALLY LONG PARALLEL BARS AND A HYDRAULIC ACTUATOR EACH OF WHICH BARS AND ACTUATOR HAVE ONE OF THEIR ENDS PIVOTALLY CONNECTED TO ONE OF SAID TERMINAL PORTIONS OF SAID BOOM, THE OTHER ENDS OF SAID BARS BEING PIVOTALLY CONNECTED TO THE OTHER OF SAID TERMINAL PORTIONS AND THE OTHER END OF SAID ACTUATOR BEING PIVOTALLY CONNECTED TO ONE OF SAID BARS; ALL OF SAID PIVOTAL CONNECTIONS OF SAID BARS AND SAID ACTUATOR BEING FOR ROTATION ABOUT AXES WHICH ARE SUBSTANTIALLY PERPENDICULAR TO THE PLANE BOUNDED BY SAID TWO HORIZONTAL AXES.
Claim 2
Dependent Claim
168 words
HYDRAULIC SHOVEL FOR USE INTER ALIA FOR OFFSET WORKING, COMPRISING: A SUPPORTING FRAME; A BOOM HAVING ONE END PIVOTALLY CONNECTED TO SAID FRAME FOR ROTATION ABOUT A FIRST HORIZONTAL AXIS; AND A BALANCE BEAM PIVOTALLY CONNECTED TO THE OTHER END OF SAID BOOM FOR ROTATION ABOUT A SECOND HORIZONTAL AXIS WHICH IS PARALLEL WITH SAID FIRST AXIS; SAID BOOM COMPRISING A PAIR OF TERMINAL PORTIONS AND AN INTERMEDIATE PORTION CONNECTED THEREBETWEEN; SAID INTERMEDIATE PORTION COMPRISING A PAIR OF EQUALLY LONG PARALLEL BARS AND A HYDRAULIC ACTUATOR EACH OF WHICH BARS AND ACTUATOR HAVE ONE OF THEIR ENDS PIVOTALLY CONNECTED TO ONE OF SAID TERMINAL PORTIONS OF SAID BOOM, THE OTHER ENDS OF SAID BARS BEING PIVOTALLY CONNECTED TO THE OTHER OF SAID TERMINAL PORTIONS AND THE OTHER END OF SAID ACTUATOR BEING PIVOTALLY CONNECTED TO ONE OF SAID BARS; ALL OF SAID PIVOTAL CONNECTIONS OF SAID BARS AND SAID ACTUATOR BEING FOR ROTATION ABOUT AXES WHICH ARE SUBSTANTIALLY PERPENDICULAR TO THE PLANE BOUNDED BY SAID TWO HORIZONTAL AXES.
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) | 1967-09-22 | 1968-03-23 | 1968-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-22 | 1972-03-23 | 1972-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-22 | 1976-03-23 | 1976-09-22 | $7700.00 | Window Closed / Lapsed |