US3075754A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rock pick
Assignee: Individual
•
Filing: 1961-03-28
•
Granted: 1963-01-29
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Expires: 1981-03-28
Abstract
No abstract record available.
Inventors
- 👤 Marcus J Bles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:06
CPC Classifications
E; E01; E01C; E01C23/00; E01C23/06; E01C23/12; E01C23/122; E02; E02F; E02F3/00; E02F3/04; E02F3/96; E02F3/963; E02F3/964; E02F5/00; E02F5/30; E02F5/305
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
221 words
IN COMBINATION, A ROTARY HORIZONTAL PLATFORM, MEANS FOR ROTATING THE PLATFORM, A ROCK SPLITTING ASSEMBLY COMPRISING A BOOM PIVOTED ON AND EXTENDING AWAY FROM THE PLATFORM, THE PLATFORM BEING ROTATABLE TO ALIGN THE BOOM WITH A ROCK FORMATION TO BE SPLIT, A TOOL ASSEMBLY MOUNTED ON THE BOOM AND HAVING A DOWNWARDLY EXTENDING TOOL, AND A HYDRAULIC CYLINDER ABOVE THE BOOM AND CONNECTED AT ONE END TO THE BOOM AND AT ITS OTHER END TO THE PLATFORM FOR ELEVATING THE BOOM TO A VERTICAL STORAGE POSITION AND FOR DEPRESSING THE BOOM FOR APPLYING THE TOOL TO A ROCK FORMATION, SAID BOOM COMPRISING SLIDABLY TELESCOPED TUBES, INCLUDING AN INNER TUBE TO WHICH THE HYDRAULIC CYLINDER IS CONNECTED AND AN OUTER TUBE, SAID INNER TUBE BEING PIVOTED AT ITS INNER END ON THE PLATFORM, SAID OUTER TUBE HAVING A HEAD FIXED ON ITS OUTER END, SAID HEAD HAVING UPPER ARM MEANS EXTENDING ABOVE THE BOOM AND LOWER ARM MEANS EXTENDING BELOW THE BOOM, SAID TOOL ASSEMBLY BEING PIVOTED ON SAID LOWER ARM MEANS, AND A HYDRAULIC CYLINDER PIVOTED ON SAID UPPER ARM MEANS AND HAVING A PISTON ROD PIVOTED TO SAID TOOL ASSEMBLY, SAID TOOL ASSEMBLY COMPRISING A BELL CRANK HAVING A HORIZONTAL ARM TO WHICH THE PISTON ROD IS PIVOTED AND A DOWNWARDLY EXTENDING VERTICAL ARM TO WHICH THE TOOL IS SECURED.
Claim 2
Dependent Claim
221 words
IN COMBINATION, A ROTARY HORIZONTAL PLATFORM, MEANS FOR ROTATING THE PLATFORM, A ROCK SPLITTING ASSEMBLY COMPRISING A BOOM PIVOTED ON AND EXTENDING AWAY FROM THE PLATFORM, THE PLATFORM BEING ROTATABLE TO ALIGN THE BOOM WITH A ROCK FORMATION TO BE SPLIT, A TOOL ASSEMBLY MOUNTED ON THE BOOM AND HAVING A DOWNWARDLY EXTENDING TOOL, AND A HYDRAULIC CYLINDER ABOVE THE BOOM AND CONNECTED AT ONE END TO THE BOOM AND AT ITS OTHER END TO THE PLATFORM FOR ELEVATING THE BOOM TO A VERTICAL STORAGE POSITION AND FOR DEPRESSING THE BOOM FOR APPLYING THE TOOL TO A ROCK FORMATION, SAID BOOM COMPRISING SLIDABLY TELESCOPED TUBES, INCLUDING AN INNER TUBE TO WHICH THE HYDRAULIC CYLINDER IS CONNECTED AND AN OUTER TUBE, SAID INNER TUBE BEING PIVOTED AT ITS INNER END ON THE PLATFORM, SAID OUTER TUBE HAVING A HEAD FIXED ON ITS OUTER END, SAID HEAD HAVING UPPER ARM MEANS EXTENDING ABOVE THE BOOM AND LOWER ARM MEANS EXTENDING BELOW THE BOOM, SAID TOOL ASSEMBLY BEING PIVOTED ON SAID LOWER ARM MEANS, AND A HYDRAULIC CYLINDER PIVOTED ON SAID UPPER ARM MEANS AND HAVING A PISTON ROD PIVOTED TO SAID TOOL ASSEMBLY, SAID TOOL ASSEMBLY COMPRISING A BELL CRANK HAVING A HORIZONTAL ARM TO WHICH THE PISTON ROD IS PIVOTED AND A DOWNWARDLY EXTENDING VERTICAL ARM TO WHICH THE TOOL IS SECURED.
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) | 1966-01-28 | 1966-07-30 | 1967-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-28 | 1970-07-30 | 1971-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-28 | 1974-07-30 | 1975-01-29 | $7700.00 | Window Closed / Lapsed |