US4585414A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Orthodontic arch wire
Assignee: Individual
•
Filing: 1985-01-22
•
Granted: 1986-04-29
•
Expires: 2005-01-22
Abstract
Abstract An article of manufacture for use in orthodontic procedures, comprising an extruded plastic rod reinforced with a stainless steel wire core. The article is found to exhibit substantially greater flexibility and resiliency than a stainless steel wire of the same outside diameter.
Inventors
- 👤 William J. Kottemann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:51
CPC Classifications
A; A61; A61C; A61C7/00; A61C7/12; A61C7/20
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
108 words
In an orthodontic system for imparting corrective forces to teeth which includes appliances mounted on the teeth and an arch wire connected to said appliances, the improvement being in the arch wire which comprises a plastic body of a cross section fitting and coacting with the appliances to apply forces thereto, and a reinforcing metal core disposed centrally within said body, the cross sectional area of the core being less than one half of the total cross sectional area of said arch wire, whereby the force capability of said arch wire is substantially less than that of a metal arch wire of the same total cross sectional area.
Claim 2
Dependent Claim
108 words
In an orthodontic system for imparting corrective forces to teeth which includes appliances mounted on the teeth and an arch wire connected to said appliances, the improvement being in the arch wire which comprises a plastic body of a cross section fitting and coacting with the appliances to apply forces thereto, and a reinforcing metal core disposed centrally within said body, the cross sectional area of the core being less than one half of the total cross sectional area of said arch wire, whereby the force capability of said arch wire is substantially less than that of a metal arch wire of the same total cross sectional area.
Claim 3
Dependent Claim
15 words
The arch wire of claim 1, wherein the metal core is round in cross section.
Claim 4
Dependent Claim
13 words
The arch wire of claim 2, wherein the body cross section is round.
Claim 5
Dependent Claim
14 words
The arch wire of claim 1, wherein said metal core is stainless steel wire.
Claim 6
Dependent Claim
13 words
The arch wire of claim 1, wherein the body cross section is rectangular.
Claim 7
Dependent Claim
13 words
The arch wire of claim 1, wherein the body cross section is round.
Claim 8
Dependent Claim
27 words
The arch wire of claim 1, wherein the arch wire exhibits a flexibility many times greater than nickel titanium alloy arch wire of the same cross section.
Claim 9
Dependent Claim
14 words
The arch wire of claim 1, wherein the plastic body is polyetherimide resin material.
Claim 10
Dependent Claim
14 words
The arch wire of claim 1, wherein the plastic body is polysulfone resin material.
Claim 11
Dependent Claim
12 words
The arch wire of claim 1, wherein the plastic body is extruded.
References Cited (Backward Citations)
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Cited
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-04-28 | 1989-10-28 | 1990-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-04-28 | 1993-10-28 | 1994-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-04-28 | 1997-10-28 | 1998-04-29 | $7700.00 | Window Closed / Lapsed |