US3172552A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic control system for selfpropelled excavator
Assignee: AUXILIAIRE de l ENTPR SOC
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Filing: 1963-04-09
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Granted: 1965-03-09
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Expires: 1983-04-09
Abstract
No abstract record available.
Inventors
- 👤 Metailler Roger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:28
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/28; E02F3/36; E02F3/42; E02F3/30; E02F3/32; E02F9/00; E02F9/08; E02F9/10; E02F9/12; E02F9/121; E02F9/123; F; F16; F16H; F16H39/00; F16H39/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
344 words
A HYDRAULIC CONTROL SYSTEM FOR AN EXCAVATOR HAVING A FRAME, A PLATFORM MOUNTED FOR SLEWING MOTION ON SAID FRAME, A THERMAL ENGINE MOUNTED ON SAID PLATFORM, THREE SWINGING WORKING MEMBERS CONSISTING OF A BOOM MOUNTED FOR LUFFING MOTION ABOUT A HORIZONTAL AXIS ON SAID PLATFORM, OF A BUCKET ARM PIVOTALLY MOUNTED ON THE OUTER END OF SAID BOOM, AND OF A BUCKET PIVOTALLY MOUNTED ON THE OUTER END OF SAID BUCKET ARM, OF A MECHANISM MOUNTED ON SAID FRAME UNDER SAID PLATFORM FOR IMPARTING A MOVEMENT OF TRANSLATION TO THE EXCAVATOR AND COMPRISING A PAIR OF DRIVE SHAFTS AND A PAIR OF CRAWLER TRACKS DRIVEN FROM SAID DRIVE SHAFTS, RESPECTIVELY AND OF ANOTHER MECHANISM FOR CONTROLLING THE SLEWING MOTION OF SAID PLATFORM ON SAID FRAME, SAID SYSTEM COMPRISING FOUR PUMPS ROTATABLY ON SAID FRAME, THE SAME SPEED FROM SAID ENGINE, A FIRST HYDRAULIC MOTOR MOUNTED ON SAID PLATFORM AND DRIVING ON THE ONE HAND THE FIRST ONE OF SAID SWINGING MEMBERS AND A FIRST DISTRIBUTOR FOR SAID HYDRAULIC MOTOR, A SECOND HYDRAULIC MOTOR MOUNTED UNDER SAID PLATFORM AND DRIVING ONE OF SAID DRIVE SHAFTS, A ROTARY SEAL AXIALLY MOUNTED THROUGH SAID PLATFORM, A SECOND DISTRIBTOR MOUNTED ON SAID PLATFORM AND CONNECTED THROUGH SAID ROTARY SEAL TO SAID SECOND HYDRAULIC MOTOR, SAID FIRST AND SECOND DISTRIBUTORS BEING CONNECTED IN PARALLEL TO THE FIRST ONE OF SAID FOUR PUMPS, A THIRD AND A FOURTH HYDRAULIC MOTORS MOUNTED ON SAID PLATFORM AND ADAPTED TO CONTROL RESPECTIVELY SAID SECOND AND THIRD SWINGING WORKING MEMBERS, A THIRD AND A FOURTH DISTRIBUTORS CONTROLLING RESPECTIVELY SAID THIRD AND FOURTH HYDRAULIC MOTORS FED RESPECTIVELY FROM SAID SECOND AND THIRD PUMPS, A FIFTH HYDRAULIC MOTOR MOUNTED ON SAID PLATFORM FOR ACTUATING THE MECHANISM CONTROLLING THE SLEWING MOVEMENTS OF SAID PLATFORM ON SAID FRAME, AND A FIFTH DISTRIBUTOR FOR SAID FIFTH MOTOR, A SIXTH HYDRAULIC MOTOR MOUNTED UNDER SAID PLATFORM FOR DRIVING SAID OTHER DRIVE SHAFT, A SIXTH DISTRIBUTORS BEING CONPLATFORM AND CONNECTED THROUGH SAID ROTARY SEAL TO SAID SIXTH MOTOR, SAID FIFTH AND SIXTH DISTRIBUTORS BEING CONNECTED IN PARALLEL TO SAID FOUR PUMP.
Claim 2
Dependent Claim
344 words
A HYDRAULIC CONTROL SYSTEM FOR AN EXCAVATOR HAVING A FRAME, A PLATFORM MOUNTED FOR SLEWING MOTION ON SAID FRAME, A THERMAL ENGINE MOUNTED ON SAID PLATFORM, THREE SWINGING WORKING MEMBERS CONSISTING OF A BOOM MOUNTED FOR LUFFING MOTION ABOUT A HORIZONTAL AXIS ON SAID PLATFORM, OF A BUCKET ARM PIVOTALLY MOUNTED ON THE OUTER END OF SAID BOOM, AND OF A BUCKET PIVOTALLY MOUNTED ON THE OUTER END OF SAID BUCKET ARM, OF A MECHANISM MOUNTED ON SAID FRAME UNDER SAID PLATFORM FOR IMPARTING A MOVEMENT OF TRANSLATION TO THE EXCAVATOR AND COMPRISING A PAIR OF DRIVE SHAFTS AND A PAIR OF CRAWLER TRACKS DRIVEN FROM SAID DRIVE SHAFTS, RESPECTIVELY AND OF ANOTHER MECHANISM FOR CONTROLLING THE SLEWING MOTION OF SAID PLATFORM ON SAID FRAME, SAID SYSTEM COMPRISING FOUR PUMPS ROTATABLY ON SAID FRAME, THE SAME SPEED FROM SAID ENGINE, A FIRST HYDRAULIC MOTOR MOUNTED ON SAID PLATFORM AND DRIVING ON THE ONE HAND THE FIRST ONE OF SAID SWINGING MEMBERS AND A FIRST DISTRIBUTOR FOR SAID HYDRAULIC MOTOR, A SECOND HYDRAULIC MOTOR MOUNTED UNDER SAID PLATFORM AND DRIVING ONE OF SAID DRIVE SHAFTS, A ROTARY SEAL AXIALLY MOUNTED THROUGH SAID PLATFORM, A SECOND DISTRIBTOR MOUNTED ON SAID PLATFORM AND CONNECTED THROUGH SAID ROTARY SEAL TO SAID SECOND HYDRAULIC MOTOR, SAID FIRST AND SECOND DISTRIBUTORS BEING CONNECTED IN PARALLEL TO THE FIRST ONE OF SAID FOUR PUMPS, A THIRD AND A FOURTH HYDRAULIC MOTORS MOUNTED ON SAID PLATFORM AND ADAPTED TO CONTROL RESPECTIVELY SAID SECOND AND THIRD SWINGING WORKING MEMBERS, A THIRD AND A FOURTH DISTRIBUTORS CONTROLLING RESPECTIVELY SAID THIRD AND FOURTH HYDRAULIC MOTORS FED RESPECTIVELY FROM SAID SECOND AND THIRD PUMPS, A FIFTH HYDRAULIC MOTOR MOUNTED ON SAID PLATFORM FOR ACTUATING THE MECHANISM CONTROLLING THE SLEWING MOVEMENTS OF SAID PLATFORM ON SAID FRAME, AND A FIFTH DISTRIBUTOR FOR SAID FIFTH MOTOR, A SIXTH HYDRAULIC MOTOR MOUNTED UNDER SAID PLATFORM FOR DRIVING SAID OTHER DRIVE SHAFT, A SIXTH DISTRIBUTORS BEING CONPLATFORM AND CONNECTED THROUGH SAID ROTARY SEAL TO SAID SIXTH MOTOR, SAID FIFTH AND SIXTH DISTRIBUTORS BEING CONNECTED IN PARALLEL TO SAID FOUR PUMP.
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) | 1968-03-08 | 1968-09-07 | 1969-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-08 | 1972-09-07 | 1973-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-08 | 1976-09-07 | 1977-03-09 | $7700.00 | Window Closed / Lapsed |