Drilling jig
Abstract
Abstract A DRILLING JIG IN WHICH SEVERAL DRILL BUSH HOLDERS ARE ADJUSTABLY MOUNTED OVER A BASEPLATE. EACH HOLDER IS APPROXIMATELY U-SHAPED AND NORMALLY FASTENED TO THE BASEPLATE BY ITS BIGHT PORTION. A SCREW CONNECTING THE TWO LEG PORTIONS OF THE HOLDER PERMITS THE FREE ENDS OF THE LEG PORTIONS TO BE MOVED TOWARD AND AWAY FROM EACH OTHER FOR CLAMPING A SPLIT RING HELD BETWEEN THE FREE ENDS ABOUT A DRILL BUSH. THE HOLDERS THE POSITIONED ON THE BASEPLATE BY MEANS OF A GAGE HAVING TWO ARMS ELONGATED AT RIGHT ANGLES TO EACH OTHER AND CARRYING RESPECTIVE SLIDES. COOPERATING ABUTMENTS ON ONE SLIDE AND ON THE BASEPLATE DETERMINE THE PORTION OF THE GAGE WHICH IS GUIDED RELATIVE TO THE BASEPLATE, AND A CONICAL ELEMENT ON THE OTHER SLIDE MAY BE ENGAGED COAXIALLY WITH A DRILL BUSH IN THE HOLDER TO BE POSITIONED.
Inventors
- 👤 Viktor Cho
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-27 | 1974-12-27 | 1975-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-27 | 1978-12-27 | 1979-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-27 | 1982-12-27 | 1983-06-28 | $7700.00 | Window Closed / Lapsed |