US3246778A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Articulated tractor loader
Assignee: Frank G Hough Co
•
Filing: 1963-08-29
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Granted: 1966-04-19
•
Expires: 1983-08-29
Abstract
No abstract record available.
Inventors
- 👤 Keith W Kampert
- 👤 Richard F Zimmerman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:57
CPC Classifications
E; E02; E02F; E02F9/00; E02F9/08; E02F9/0841
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
145 words
IN AN ARTICULATED FRONT-END TRACTOR LOADER HAVING FRONT AND REAR FRAME SECTIONS HINGEDLY CONNECTED TOGETHER FOR RELATIVE MOVEMENT ABOUT A VERTICAL PIVOT AXIS, FIRST FLUID MOTOR MEANS FOR MOVING SAID FRONT SECTION RELATIVE TO SAID REAR SECTION, BOOM ARM MEANS PIVOTALLY CONNECTED TO SAID FRONT SECTION AND INCLUDING A BUCKET PIVOTALLY CONNECTED TO SAID BOOM ARM MEANS, SECOND FLUID MOTOR MEANS ON SAID FRONT SECTION FOR RAISING AND LOWERING SAID BOOM ARM MEANS AND SAID BUCKET, THIRD FLUID MOTOR MEANS ON SAID FRONT SECTIONS FOR PIVOTING SAID BUCKET, A HYDRAULIC PRESSURE SYSTEM SUPPORTED ENTIRELY ON SAID FRONT SECTION INCLUDING A DRIVEN PUMP PROVIDING FLUID UNDER PRESSURE TO SAID MOTOR MEANS, AND DRIVING MEANS ON SAID REAR FRAME SECTION INCLUDING A POWER UNIT AND A UNIVERSAL DRIVE MEMBER CONNECTING SAID POWER UNIT WITH SAID PUMP, THE DRIVE MEMBER BEING POSITIONED SUBSTANTIALLY OVER SAID VERTICAL PIVOT AXIS.
Claim 2
Dependent Claim
145 words
IN AN ARTICULATED FRONT-END TRACTOR LOADER HAVING FRONT AND REAR FRAME SECTIONS HINGEDLY CONNECTED TOGETHER FOR RELATIVE MOVEMENT ABOUT A VERTICAL PIVOT AXIS, FIRST FLUID MOTOR MEANS FOR MOVING SAID FRONT SECTION RELATIVE TO SAID REAR SECTION, BOOM ARM MEANS PIVOTALLY CONNECTED TO SAID FRONT SECTION AND INCLUDING A BUCKET PIVOTALLY CONNECTED TO SAID BOOM ARM MEANS, SECOND FLUID MOTOR MEANS ON SAID FRONT SECTION FOR RAISING AND LOWERING SAID BOOM ARM MEANS AND SAID BUCKET, THIRD FLUID MOTOR MEANS ON SAID FRONT SECTIONS FOR PIVOTING SAID BUCKET, A HYDRAULIC PRESSURE SYSTEM SUPPORTED ENTIRELY ON SAID FRONT SECTION INCLUDING A DRIVEN PUMP PROVIDING FLUID UNDER PRESSURE TO SAID MOTOR MEANS, AND DRIVING MEANS ON SAID REAR FRAME SECTION INCLUDING A POWER UNIT AND A UNIVERSAL DRIVE MEMBER CONNECTING SAID POWER UNIT WITH SAID PUMP, THE DRIVE MEMBER BEING POSITIONED SUBSTANTIALLY OVER SAID VERTICAL PIVOT AXIS.
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) | 1969-04-18 | 1969-10-18 | 1970-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-18 | 1973-10-18 | 1974-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-18 | 1977-10-18 | 1978-04-19 | $7700.00 | Window Closed / Lapsed |