Patent US4365958A successfully refreshed from Google Patents.
US4365958A
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US
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Combined dental drill and anchor pin
Assignee: Individual
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Filing: 1981-06-17
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Granted: 1982-12-28
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Expires: 2001-06-17
Abstract
Abstract A combined dental drill and anchor pin for use in the field of denistry. Restoration techniques, involving the use of anchor pins for the retention and reinforcing of dental support structures as well as for various mechanical appliances used in the field of orthodontics, are facilitated by combining the drill and anchor pin in a single structure thereby eliminating separate drilling and pin insertion steps.
Inventors
- 👤 David G. Vlock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:21
CPC Classifications
F; F16; F16B; F16B25/00; F16B25/10; F16B25/103; A; A61; A61C; A61C3/00; A61C3/02; A61C5/00; A61C5/30; A61C5/35; F16B25/001; F16B25/0026; F16B25/0036; F16B25/0078; F16B25/0084; A61B; A61B90/00; A61B90/03; A61B2090/033; A61B2090/036
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
118 words
A dental device combining a drilling end with an anchor pin for the purpose of performing in a single step drilling a pin hole in tooth dentin and retaining the anchor pin within the tooth structure; which comprises a drill, positioned at one end thereof, an integrally connected anchoring pin, stop means positioned on said anchoring pin, and a trailing shank at the other end for attaching said combined drill-anchoring pin device to a powered dental hand piece wherein said trailing shank is provided with a shearing point adjacent to the protruding portion of the anchor pin, which is scored or grooved, so as to eliminate damaging the tooth when the stop means is adjacent to the tooth.
Claim 2
Dependent Claim
118 words
A dental device combining a drilling end with an anchor pin for the purpose of performing in a single step drilling a pin hole in tooth dentin and retaining the anchor pin within the tooth structure; which comprises a drill, positioned at one end thereof, an integrally connected anchoring pin, stop means positioned on said anchoring pin, and a trailing shank at the other end for attaching said combined drill-anchoring pin device to a powered dental hand piece wherein said trailing shank is provided with a shearing point adjacent to the protruding portion of the anchor pin, which is scored or grooved, so as to eliminate damaging the tooth when the stop means is adjacent to the tooth.
Claim 3
Dependent Claim
15 words
The combined drill-anchoring pin device of claim 1 wherein said anchoring pin is screw threaded.
Claim 4
Dependent Claim
15 words
The combined drill-anchoring pin device of claim 1 wherein said drill is a twist drill.
Claim 5
Dependent Claim
20 words
The combined drill-anchoring pin device of claim 1 wherein said drill is a single or multiple fluted end cutting drill.
Claim 6
Dependent Claim
35 words
The combined drill-anchoring pin device of claim 1 wherein said trailing shank is releasably attached to the powered dental handpiece, and when released the trailing shank serves as a portion of the protruding anchoring pin.
Claim 7
Dependent Claim
29 words
The combined drill-anchoring pin device of claims 1 or 2 wherein said stop means is positioned between said screw retention section and said protruding section of the anchoring pin.
References Cited (Backward Citations)
US4219620A
Cited
US4187611A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-12-27 | 1986-06-28 | 1986-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-12-27 | 1990-06-28 | 1990-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-12-27 | 1994-06-28 | 1994-12-28 | $7700.00 | Window Closed / Lapsed |