US2755734A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shot hole cap wire catcher
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1952-12-18
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Granted: 1956-07-24
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Expires: 1972-12-18
Abstract
No abstract record available.
Inventors
- 👤 John T Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:48
CPC Classifications
F; F42; F42D; F42D5/00; E; E02; E02D; E02D5/00; E02D5/74; E02D5/80; E02D5/803
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
155 words
A DEVICE FOR ENTANGLING CAP WIRES EMPLOYED IN DETONATING AN EXPLOSIVE CHARGE IN A BORE HOLE, COMPRISING AN ELONGATED BODY, AN ELONGATED TUBE SHORTER THAN SAID BODY AND SLIDABLY RECEIVING SAID BODY, A PAIR OF UPWARDLY DIRECTED POINTED ARMS PIVOTALLY ATTACHED TO THE LOWER PORTION OF SAID BODY, A PAIR OF LINKAGE ARMS EACH PIVOTALLY ATTACHED AT ONE END TO THE LOWER END OF SAID TUBE AND PIVOTALLY ATTACHED AT ITS OTHER END TO A MILD PORTION OF ONE OF SAID ARMS, A PAIR OF SUPPORT MEMBERS RIGIDLY ATTACHED PERPENDICULARLY TO THE UPPER END OF SAID TUBE ON OPPOSITE SIDES THEREOF WHEREBY TO SPAN SAID BORE HOLE AND TO SUPPORT SAID DEVICE IN THE TOP OF SAID BOREHOLE, AND A HANDLE FASTENED TO THE UPPER PROJECTING END OF SAID BODY ABOVE SAID SUPPORT MEMBERS TO RAISE SAID BODY RELATIVE TO SAID TUBE WHEREBY SAID ARMS WILL MOVE OUTWARDLY INTO THE WALLS OF SAID BORE HOLE.
Claim 2
Independent Claim
155 words
A DEVICE FOR ENTANGLING CAP WIRES EMPLOYED IN DETONATING AN EXPLOSIVE CHARGE IN A BORE HOLE, COMPRISING AN ELONGATED BODY, AN ELONGATED TUBE SHORTER THAN SAID BODY AND SLIDABLY RECEIVING SAID BODY, A PAIR OF UPWARDLY DIRECTED POINTED ARMS PIVOTALLY ATTACHED TO THE LOWER PORTION OF SAID BODY, A PAIR OF LINKAGE ARMS EACH PIVOTALLY ATTACHED AT ONE END TO THE LOWER END OF SAID TUBE AND PIVOTALLY ATTACHED AT ITS OTHER END TO A MILD PORTION OF ONE OF SAID ARMS, A PAIR OF SUPPORT MEMBERS RIGIDLY ATTACHED PERPENDICULARLY TO THE UPPER END OF SAID TUBE ON OPPOSITE SIDES THEREOF WHEREBY TO SPAN SAID BORE HOLE AND TO SUPPORT SAID DEVICE IN THE TOP OF SAID BOREHOLE, AND A HANDLE FASTENED TO THE UPPER PROJECTING END OF SAID BODY ABOVE SAID SUPPORT MEMBERS TO RAISE SAID BODY RELATIVE TO SAID TUBE WHEREBY SAID ARMS WILL MOVE OUTWARDLY INTO THE WALLS OF SAID BORE HOLE.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-07-24 | 1960-01-23 | 1960-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-07-24 | 1964-01-23 | 1964-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-07-24 | 1968-01-23 | 1968-07-24 | $7700.00 | Window Closed / Lapsed |