US3675329A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dental anchoring pin and head therefor
Assignee: IPCO Corp
•
Filing: 1971-01-20
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Granted: 1972-07-11
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Expires: 1991-01-20
Abstract
Abstract A dental anchor for securing a superstructure to a tooth understructure comprising an elongate member which integrally includes a self-threading anchoring portion for operative association with the tooth understructure. The elongate member further includes an enlarged headed anchoring portion for operative association with the superstructure to be mounted upon the understructure. The enlarged head acts to resist or enhance resistance to displacement of the superstructure relative to the understructure axially along the dental anchor. The elongate member is further integrally provided with a manipulating portion for permitting manipulation of the self-threading anchoring portion thereof. The manipulating portion is spaced from the enlarged headed anchoring portion by a weakened portion of reduced thickness the latter for permitting self-severing of the manipulating portion from the enlarged headed anchoring portion selectively.
Inventors
- 👤 Bernard Weissman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:20
CPC Classifications
A; A61; A61C; A61C5/00; A61C5/30; A61C5/35
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
125 words
A dental anchor for securing a superstructure to a tooth understructure, said dental anchor comprising an elongate member, said elongate member integrally including a self-securing anchoring portion for operative association with a tooth understructure, a displacement-resisting anchoring portion for operative displacement-resisting association with a superstructure, a manipulating portion for permitting manipulation of said self-securing anchoring portion, and a weakened portion interposed between said manipulating portion and said displacement-resisting anchoring portion for permitting selective self-severing of the two latter said portions from one another, said manipulating portion terminating in a free end and having an elongate extent substantially the same as the elongate extent of said self-securing anchoring portion, said free and including means for permitting self-severing of said manipulating portion from said displacement-resisting anchoring portion.
Claim 2
Dependent Claim
125 words
A dental anchor for securing a superstructure to a tooth understructure, said dental anchor comprising an elongate member, said elongate member integrally including a self-securing anchoring portion for operative association with a tooth understructure, a displacement-resisting anchoring portion for operative displacement-resisting association with a superstructure, a manipulating portion for permitting manipulation of said self-securing anchoring portion, and a weakened portion interposed between said manipulating portion and said displacement-resisting anchoring portion for permitting selective self-severing of the two latter said portions from one another, said manipulating portion terminating in a free end and having an elongate extent substantially the same as the elongate extent of said self-securing anchoring portion, said free and including means for permitting self-severing of said manipulating portion from said displacement-resisting anchoring portion.
Claim 3
Dependent Claim
24 words
A dental anchor as claimed in claim 1, wherein said weakened portion is constituted as a portion of reduced thickness in said elongate member.
Claim 4
Dependent Claim
25 words
A dental anchor as claimed in claim 1, wherein said self-securing anchoring portion is constituted as a helically threaded external portion of generally cylindrical extent.
Claim 5
Dependent Claim
27 words
A dental anchor as claimed in claim 1, wherein said displacement-resisting anchoring portion includes a pair of opposing flange faces generally extending laterally of said elongate member.
Claim 6
Dependent Claim
20 words
A dental anchor as claimed in claim 4, wherein said pair of opposing flange faces are of generally annular extent.
Claim 7
Dependent Claim
26 words
A dental anchor as claimed in claim 5, wherein said pair of opposing flange faces are of greater lateral extent than that of said elongate member.
Claim 8
Dependent Claim
23 words
A dental anchor as claimed in claim 6, wherein said self-securing anchoring portion includes a helically threaded surface terminating at one flange face.
Claim 9
Dependent Claim
49 words
A dental anchor as claimed in claim 2, wherein said elongate member is metallic and of sufficient reduced thickness at said weakened portion such that said manipulating means is readily severable from said displacement-resisting anchoring portion simply upon rotation of the two latter said portions relative to one another.
Claim 10
Dependent Claim
45 words
A dental anchor as claimed in claim 8, wherein said manipulating portion includes guide means for axially guiding the elongate member into operative association with the tooth understructure, and torque-transferring means for rotatably displacing said self-securing anchoring portion into operative association with said tooth understructure.
Claim 11
Dependent Claim
62 words
A dental anchor as claimed in claim 9, wherein said guide means includes a frusto-conical extent cooperable at least in part with a dental tool and terminating in a portion of minimum diameter at said displacement-resisting anchoring portion to constitute said weakened portion, and said torque-transferring means includes a pair of opposing endmost flat faces responsive to rotation of the dental tool.
Claim 12
Dependent Claim
27 words
A dental anchor as claimed in claim 8, wherein said manipulating means has an elongate extent which is slightly greater than that of said self-securing anchoring portion.
References Cited (Backward Citations)
US114454A
Cited
US3343443A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-07-11 | 1976-01-10 | 1976-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-11 | 1980-01-10 | 1980-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-11 | 1984-01-10 | 1984-07-11 | $7700.00 | Window Closed / Lapsed |