Patent US3197050A successfully refreshed from Google Patents.
US3197050A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Material handling equipment
Assignee: Case LLC
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Filing: 1963-02-11
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Granted: 1965-07-27
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Expires: 1983-02-11
Abstract
No abstract record available.
Inventors
- 👤 John F Shumaker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 17:46
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/28; E02F3/34; E02F3/3417; E02F3/3405; E02F3/3408
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
201 words
IN A LOADER OF THE TYPE HAVING A BOOM MOVABLE UP AND DOWN AND A BUCKET MOUNTED ON THEW BOOM FOR SWINGING MOVEMENT INTO AND OUT OF A DUMPING POSITION, MEANS FOR EFFECTING SUCH SWINGING INCLUDING THE COMBINATION OF A FIRST PIVOTAL CONNECTION ON THE BOOM AND CONNECTED IN SUPPORTING RELATION WITH THE BUCKET, A SECOND PIVOTAL CONNECTION ON THE BOOM SPACED BACKWARDLY FROM THE FIRST PIVOTAL CONNECTION, AN UPWARDLY DIRECTED LEVER SUPPORTED ON THE SECOND PIVOTAL CONNECTION, AN ANCHORAGE ON SAID BOOM SPACED BETWEEN THE SECOND PIVOTAL CONNECTION AND THE BUCKET, A THIRD PIVOTAL CONNECTION ON THE LEVER SPACED UPWARDLY FROM THE SECOND PIVOTAL CONNECTION, A FLUID CYLINDER SUPPORTED ON SAID THIRD PIVOTAL CONNECTION, A PISTON SLIDABLE IN THE CYLINDER AND HAVING A PISTON ROD EXTENDING THROUGH A WALL OF SAID CYLINDER AND CONNECTED TO SAID ANCHORAGE, A LINK PIVOTALLY CONNECTED TO THE LEVER AT A POINT SPACED UPWARDLY FROM THE SECOND PIVOTAL CONNECTION, A PIVOT MOUNTED ON SAID BUCKET AT A POINT SPACED FROM THE FIRST PIVOTAL CONNECTION ON THE SAME SIDE OF SAID BOOM AS SAID THIRD PIVOTAL CONNECTION, SAID LINK BEING PIVOTALLY SECURED TO SAID PIVOT, AND MEANS FOR SUPPLYING SUPPLYING PRESSURE FLUID TO SAID FLUID CYLINDER.
Claim 2
Dependent Claim
201 words
IN A LOADER OF THE TYPE HAVING A BOOM MOVABLE UP AND DOWN AND A BUCKET MOUNTED ON THEW BOOM FOR SWINGING MOVEMENT INTO AND OUT OF A DUMPING POSITION, MEANS FOR EFFECTING SUCH SWINGING INCLUDING THE COMBINATION OF A FIRST PIVOTAL CONNECTION ON THE BOOM AND CONNECTED IN SUPPORTING RELATION WITH THE BUCKET, A SECOND PIVOTAL CONNECTION ON THE BOOM SPACED BACKWARDLY FROM THE FIRST PIVOTAL CONNECTION, AN UPWARDLY DIRECTED LEVER SUPPORTED ON THE SECOND PIVOTAL CONNECTION, AN ANCHORAGE ON SAID BOOM SPACED BETWEEN THE SECOND PIVOTAL CONNECTION AND THE BUCKET, A THIRD PIVOTAL CONNECTION ON THE LEVER SPACED UPWARDLY FROM THE SECOND PIVOTAL CONNECTION, A FLUID CYLINDER SUPPORTED ON SAID THIRD PIVOTAL CONNECTION, A PISTON SLIDABLE IN THE CYLINDER AND HAVING A PISTON ROD EXTENDING THROUGH A WALL OF SAID CYLINDER AND CONNECTED TO SAID ANCHORAGE, A LINK PIVOTALLY CONNECTED TO THE LEVER AT A POINT SPACED UPWARDLY FROM THE SECOND PIVOTAL CONNECTION, A PIVOT MOUNTED ON SAID BUCKET AT A POINT SPACED FROM THE FIRST PIVOTAL CONNECTION ON THE SAME SIDE OF SAID BOOM AS SAID THIRD PIVOTAL CONNECTION, SAID LINK BEING PIVOTALLY SECURED TO SAID PIVOT, AND MEANS FOR SUPPLYING SUPPLYING PRESSURE FLUID TO SAID FLUID CYLINDER.
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) | 1968-07-26 | 1969-01-25 | 1969-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-26 | 1973-01-25 | 1973-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-26 | 1977-01-25 | 1977-07-27 | $7700.00 | Window Closed / Lapsed |