Patent EP0440359A2 successfully refreshed from Google Patents.
Patent US3258997A successfully refreshed from Google Patents.
US3258997A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drilling device for lathe tailstock
Assignee: Individual
•
Filing: 1964-01-31
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Granted: 1966-07-05
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Expires: 1984-01-31
Abstract
No abstract record available.
Inventors
- 👤 William M Krisovitch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 15:38
CPC Classifications
B; B23; B23B; B23B43/00; B23B43/02; Y; Y10; Y10T; Y10T29/00; Y10T29/51; Y10T29/5178; Y10T82/00; Y10T82/25; Y10T82/2531; Y10T82/2572
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
A DRILLING DEVICE OF THE CHARACTER DESCRIBED ADAPTED TO BE ATTACHED TO THE TAILSTOCK OF A LATHE FOR DRILLING AN AXIAL BORE IN A WORKPIECE CARRIED BY THE LATHE HEADSTOCK COMPRISING A TAPERED SHANK ADAPTED TO BE MOUNTED WITHIN A SPINDLE OF THE LATHE TAILSTOCK, A ROD SLIDABLY MOUNTED WITHIN SAID TAPERED SHANK, A HOUSING SECURED TO ONE END OF SAID ROD, A SHAFT ROTATABLY MOUNTED WITHIN SAID HOUSING, A DRILL CHUCK CONNECTED TO ONE END OF SAID SHAFT, WHEREBY THE CHUCK ASSEMBLY IS ROTATABLE RELATIVE TO THE HOUSING, AND LINKAGE MEANS OPERATIVELY CONNECTED BETWEEN THE HOUSING AND THE TAPERED SHANK, WHEREBY THE ROD AND ASSOCIATED HOUSING AND ROTATABLE DRILL CHUCK ASSEMBLY CAN BE MOVED RELATIVE TO THE TAPERED SHANK.
Claim 2
Dependent Claim
120 words
A DRILLING DEVICE OF THE CHARACTER DESCRIBED ADAPTED TO BE ATTACHED TO THE TAILSTOCK OF A LATHE FOR DRILLING AN AXIAL BORE IN A WORKPIECE CARRIED BY THE LATHE HEADSTOCK COMPRISING A TAPERED SHANK ADAPTED TO BE MOUNTED WITHIN A SPINDLE OF THE LATHE TAILSTOCK, A ROD SLIDABLY MOUNTED WITHIN SAID TAPERED SHANK, A HOUSING SECURED TO ONE END OF SAID ROD, A SHAFT ROTATABLY MOUNTED WITHIN SAID HOUSING, A DRILL CHUCK CONNECTED TO ONE END OF SAID SHAFT, WHEREBY THE CHUCK ASSEMBLY IS ROTATABLE RELATIVE TO THE HOUSING, AND LINKAGE MEANS OPERATIVELY CONNECTED BETWEEN THE HOUSING AND THE TAPERED SHANK, WHEREBY THE ROD AND ASSOCIATED HOUSING AND ROTATABLE DRILL CHUCK ASSEMBLY CAN BE MOVED RELATIVE TO THE TAPERED SHANK.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-07-04 | 1970-01-03 | 1970-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-04 | 1974-01-03 | 1974-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-04 | 1978-01-03 | 1978-07-05 | $7700.00 | Window Closed / Lapsed |