US3325890A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for inserting a threaded fastener into a workpiece
Assignee: Individual
•
Filing: 1966-07-13
•
Granted: 1967-06-20
•
Expires: 1986-07-13
Abstract
No abstract record available.
Inventors
- 👤 Raymond P Sandor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:54
CPC Classifications
B; B23; B23B; B23B51/00; B23B51/08; B25; B25B; B25B21/00; B25B21/007; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49833; Y10T29/49947; Y10T29/49963
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
A METHOD FOR INSTALLING A THREADED FASTENER INTO A WORKPIECE COMPRISING THE STEPS OF: (A) DRILLING A FASTENER HOLE WITH A POWER ACTUATED ROTATING DRILL BIT PASSING AXIALLY THROUGH THE THREADED FASTENER, THE HEAD END OF THE FASTENER HAVING A SURFACE MATED WITH A SURFACE OF A MEMBER RIGIDLY ATTACHED TO THE DRILL BIT ABOVE ITS END, THE TWO SURFACES FORMING A SLIPPABLE FRICTION CLUTCH, (B) GRADUALLY ENGAGING THE TWO SAID SURFACES TO PERMIT INITIAL SLIPPAGE AND FINAL DRIVING OF THE FASTENER WITH THE ROTATION OF THE DRILL BIT TO THREADABLY INSERT THE FASTENER INTO THE HOLE WHILE IT IS BEING DRILLED.
Claim 2
Independent Claim
102 words
A METHOD FOR INSTALLING A THREADED FASTENER INTO A WORKPIECE COMPRISING THE STEPS OF: (A) DRILLING A FASTENER HOLE WITH A POWER ACTUATED ROTATING DRILL BIT PASSING AXIALLY THROUGH THE THREADED FASTENER, THE HEAD END OF THE FASTENER HAVING A SURFACE MATED WITH A SURFACE OF A MEMBER RIGIDLY ATTACHED TO THE DRILL BIT ABOVE ITS END, THE TWO SURFACES FORMING A SLIPPABLE FRICTION CLUTCH, (B) GRADUALLY ENGAGING THE TWO SAID SURFACES TO PERMIT INITIAL SLIPPAGE AND FINAL DRIVING OF THE FASTENER WITH THE ROTATION OF THE DRILL BIT TO THREADABLY INSERT THE FASTENER INTO THE HOLE WHILE IT IS BEING DRILLED.
References Cited (Backward Citations)
US1260154A
Cited
US2157216A
Cited
US2267925A
Cited
US2458391A
Cited
US2659255A
Cited
US2705030A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-06-19 | 1970-12-19 | 1971-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-19 | 1974-12-19 | 1975-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-19 | 1978-12-19 | 1979-06-20 | $7700.00 | Window Closed / Lapsed |