US4139945A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Orthodontic rotary angulating bracket assembly
Assignee: Individual
•
Filing: 1977-03-18
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Granted: 1979-02-20
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Expires: 1997-03-18
Abstract
Abstract A rotatably adjustable orthodontic bracket assembly for correcting improperly positioned or angled teeth. A tooth band or bonding base is provided with a bearing in which a pivot element is mounted having at one end a flexible friction flange engaging the posterior side of the band or base and having an arch wire bracket at the other end engaging the anterior side of the band or base so that the bracket may be readily adjusted to a desired angular setting and retained in such setting during handling. Thereafter, the bracket is welded to the band or base and subsequently the band or base is cemented to the tooth. A gage is provided to readily adjust the bracket to any predetermined angular setting or to indicate the angle to which the bracket has been previously set.
Inventors
- 👤 Hugo J. DiGiulio
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:43
CPC Classifications
A; A61; A61C; A61C7/00; A61C7/12
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
135 words
An adjustable orthodontic bracket assembly comprising a base member for attachment to a tooth, the side of said base member facing said tooth being curved, said base member having a bearing opening extending therethrough, a pivot element pivotal in said bearing, a thin, flexible flange integral with said pivot element on said side of said base member facing said tooth, and an arch wire bracket integral with said pivot element on the opposite side of said base member, said bracket having means for coupling to an arch wire, said base member flexing said flange whereby to retain said pivot element in different angularly adjusted positions relative to said base member, said flange having openings therethrough whereby to increase the flexibility of said flange and to receive the cement for attaching said assembly to said tooth.
Claim 2
Dependent Claim
135 words
An adjustable orthodontic bracket assembly comprising a base member for attachment to a tooth, the side of said base member facing said tooth being curved, said base member having a bearing opening extending therethrough, a pivot element pivotal in said bearing, a thin, flexible flange integral with said pivot element on said side of said base member facing said tooth, and an arch wire bracket integral with said pivot element on the opposite side of said base member, said bracket having means for coupling to an arch wire, said base member flexing said flange whereby to retain said pivot element in different angularly adjusted positions relative to said base member, said flange having openings therethrough whereby to increase the flexibility of said flange and to receive the cement for attaching said assembly to said tooth.
Claim 3
Dependent Claim
17 words
An adjustable orthodontic bracket assembly as defined in claim 1 wherein said openings comprise radially extending slots.
Claim 4
Dependent Claim
75 words
An adjustable orthodontic bracket assembly as defined in claim 1 comprising an indicator member, an indicator bar, means other than said pivot element pivotally supporting said bar on said indicator member, and indicia on said indicator member for indicating the position of said bar relative to said indicator member, said coupling means being effective to couple said bar to said bracket whereby pivotal movement of said bar will cause similar pivotal movement of said bracket.
References Cited (Backward Citations)
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Cited
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US3203098A
Cited
US3423833A
Cited
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Cited
US3925893A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-02-19 | 1982-08-21 | 1983-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-02-19 | 1986-08-21 | 1987-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-02-19 | 1990-08-21 | 1991-02-20 | $7700.00 | Window Closed / Lapsed |