US3214040A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Single lever control for hydraulic backhoes
Assignee: Individual
•
Filing: 1964-06-24
•
Granted: 1965-10-26
•
Expires: 1984-06-24
Abstract
No abstract record available.
Inventors
- 👤 William G Willinger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:28
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/28; E02F3/36; E02F3/38; E02F3/382; E02F3/384; E02F9/00; E02F9/20; E02F9/2004
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
189 words
POWER OPERATED MATERIAL HANDLING APPARATUS COMPRISING: (A) A MAIN SUPPORT FRAME, A SWING FRAME PIVOTALLY MOUNTED ON THE MAIN FRAME, A BOOM FRAME SECURED TO SAID FRAME, AND MATERIAL HANDLING ELEMENTS CARRIED ON SAID BOOM FRAME; (B) FIRST HYDRAULICALLY ACTUATED MEANS FOR PIVOTING SAID SWING FRAME ABOUT A VERTICAL AXIS RELATIVE TO SAID MAIN SUPPORT FRAME, SECOND HYDRAULICALLY ACTUATED MEANS FOR PIVOTING SAID BOOM FRAME ABOUT A HORIZONTAL AXIS ADJACENT SAID SWING FRAME, THIRD HYDRAULICALLY ACTUATED MEANS FOR PIVOTALLY MOVING SAID MATERIAL HANDLING ELEMENTS ABOUT A PIVOT AXIS DISPOSED IN A HORIZONTAL PLANE ALONG SAID BOOM FRAME AND IN SPACED RELATIONSHIP TO SAID MAIN FRAME, AND FOURTH HYDRAULICALLY ACTUATED MEANS FOR PIVOTING SAID MATERIAL HANDLING ELEMENTS ABOUT A HORIZONTAL AXIS DISPOSED IN SPACED RELATIONSHIP TO THE FREE END OF SAID BOOM FRAME, AND (C) CONTROL MEANS FOR ENERGIZING SAID FIRST, SECOND, THIRD AND FOURTH HYDRAULICALLY ACTUATED MEANS, SAID CONTROL MEANS INCLUDING A SUBSTANTIALLY UPRIGHT POST ARRANGED ABOUT A SUBSTANTIALLY VERTICAL AXIS AND HAVING A HANDLE ROTATABLY JOURNALED ALONG THE TOP THEREOF, SAID CONTROL POST HAVING A FIRST PIVOT AXIS FOR PIVOTING A PORTION OF SAID CONTROL POST ABOUT SAID
Claim 2
Dependent Claim
189 words
POWER OPERATED MATERIAL HANDLING APPARATUS COMPRISING: (A) A MAIN SUPPORT FRAME, A SWING FRAME PIVOTALLY MOUNTED ON THE MAIN FRAME, A BOOM FRAME SECURED TO SAID FRAME, AND MATERIAL HANDLING ELEMENTS CARRIED ON SAID BOOM FRAME; (B) FIRST HYDRAULICALLY ACTUATED MEANS FOR PIVOTING SAID SWING FRAME ABOUT A VERTICAL AXIS RELATIVE TO SAID MAIN SUPPORT FRAME, SECOND HYDRAULICALLY ACTUATED MEANS FOR PIVOTING SAID BOOM FRAME ABOUT A HORIZONTAL AXIS ADJACENT SAID SWING FRAME, THIRD HYDRAULICALLY ACTUATED MEANS FOR PIVOTALLY MOVING SAID MATERIAL HANDLING ELEMENTS ABOUT A PIVOT AXIS DISPOSED IN A HORIZONTAL PLANE ALONG SAID BOOM FRAME AND IN SPACED RELATIONSHIP TO SAID MAIN FRAME, AND FOURTH HYDRAULICALLY ACTUATED MEANS FOR PIVOTING SAID MATERIAL HANDLING ELEMENTS ABOUT A HORIZONTAL AXIS DISPOSED IN SPACED RELATIONSHIP TO THE FREE END OF SAID BOOM FRAME, AND (C) CONTROL MEANS FOR ENERGIZING SAID FIRST, SECOND, THIRD AND FOURTH HYDRAULICALLY ACTUATED MEANS, SAID CONTROL MEANS INCLUDING A SUBSTANTIALLY UPRIGHT POST ARRANGED ABOUT A SUBSTANTIALLY VERTICAL AXIS AND HAVING A HANDLE ROTATABLY JOURNALED ALONG THE TOP THEREOF, SAID CONTROL POST HAVING A FIRST PIVOT AXIS FOR PIVOTING A PORTION OF SAID CONTROL POST ABOUT SAID
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-10-25 | 1969-04-26 | 1969-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-25 | 1973-04-26 | 1973-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-25 | 1977-04-26 | 1977-10-26 | $7700.00 | Window Closed / Lapsed |