US3835539A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Orthodontic appliance
Assignee: Individual
•
Filing: 1972-11-08
•
Granted: 1974-09-17
•
Expires: 1992-11-08
Abstract
Abstract A spring clip for use in association with both an arch wire and an orthodontic bracket includes a pin which is insertable through an upright retaining channel of the bracket. The length of the pin is longer than the channel and the pin is releasably secured to the bracket by a flexible free end portion which is deformable subsequent to insertion of the pin into the retaining channel. When used with an edgewise bracket having a wire containing channel in its front face, a spring clip retaining finger may be connected to an exposed free end portion of the pin which is biased to abut against the front surface of the bracket to thereby retain the arch wire within the wire retaining channel of the bracket. Alternately, or additionally, a biassing finger may be provided which is integral with the pin at an exposed free end portion thereof and which is arranged in pressure transmitting relationship with the wire when the biassing finger is flexed from a normally unstressed position on the opposite side to a stressed position on the same side of the wire as the pin.
Inventors
- 👤 M Wallshein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:58
CPC Classifications
A; A61; A61C; A61C7/00; A61C7/12; A61C7/28; A61C7/30; A61C7/14; A61C7/148
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
123 words
An orthodontic appliance for cooperating with an orthodontic arch wire disposed in an arch wire receiving channel of an orthodontic bracket, comprising mounting means for securely mounting the appliance to the bracket; and resilient elongated finger means mounted in cantilevered relation on said mounting means and extending in a direction substantially normal to the direction of the arch wire in opposed relation to the latter adjacently to the bracket, said finger means bEing arranged to apply a force to the bracket transverse to the direction of the arch wire when resiliently moved from a normal undeflected position to an operative position, said force having at least a component thereof substantially normal to the axis of the tooth on which the bracket is mounted.
Claim 2
Dependent Claim
123 words
An orthodontic appliance for cooperating with an orthodontic arch wire disposed in an arch wire receiving channel of an orthodontic bracket, comprising mounting means for securely mounting the appliance to the bracket; and resilient elongated finger means mounted in cantilevered relation on said mounting means and extending in a direction substantially normal to the direction of the arch wire in opposed relation to the latter adjacently to the bracket, said finger means bEing arranged to apply a force to the bracket transverse to the direction of the arch wire when resiliently moved from a normal undeflected position to an operative position, said force having at least a component thereof substantially normal to the axis of the tooth on which the bracket is mounted.
Claim 3
Dependent Claim
73 words
An orthodontic appliance as defined in claim 1, wherein the bracket is provided with an elongated retaining channel generally oriented in a direction normal to the direction of the arch wire and having a predetermined length, and wherein said mounting means comprises an elongated pin configurated to pass through the retaining channel and having a length greater than said predetermined length, and securing means for securing said elongated pin in said retaining channel.
Claim 4
Dependent Claim
79 words
An orthodontic appliance as defined in claim 2, wherein the bracket is an edgewise bracket having a front face and having the arch wire receiving channel in its front face, and wherein said finger means comprises a resilient retaining finger extending to and abutting against at least a portion of the front face of the bracket to be positioned opposite the arch wire receiving channel, whereby said resilient finger prevents the arch wire from leaving the wire receiving channel.
Claim 5
Dependent Claim
35 words
An orthodontic appliance as defined in claim 3, wherein said resilient retaining finger has a length sufficient to extend substantially across the entire front face of the bracket and is substantially parallel to said pin.
Claim 6
Dependent Claim
66 words
An orthodontic appliance as defined in claim 2, wherein the arch wire has two portions respectively positioned exteriorly of the bracket beyond opposite ends of the arch receiving wire channel, and wherein said finger means comprises a biassing finger arranged to resiliently abut against one of the exterior portions, whereby a force is applied to the arch wire by said biassing finger relative to the bracket.
Claim 7
Dependent Claim
30 words
An orthodontic appliance as defined in claim 5, wherein two biassing fingers are provided each respectively arranged to abut against another exterior wire portion on another side of the bracket.
Claim 8
Dependent Claim
23 words
An orthodontic appliance as defined in claim 2, wherein said pin and said finger means are constructed from a one-piece flat metal stamping.
Claim 9
Dependent Claim
53 words
An orthodontic appliance as defined in claim 5, wherein said biassing finger and said pin are angularly positioned relative to each other and define an angle therebetween, said angle being normally different in an unstressed state of said biassing finger than when said biassing finger abuts against the arch wire in pressure-transmitting relationship.
Claim 10
Dependent Claim
31 words
An orthodontic appliance as defined in claim 2, wherein said securing means comprises a deformable free end portion of said pin which is deformed subsequent to passage through said retaining channel.
Claim 11
Dependent Claim
55 words
An orthodontic appliance as defined in claim 1, wherein the bracket is provided with an elongated retaining channel generally oriented in a direction normal to the direction of the arch wire, and wherein said mounting means comprises an elongated pin configurated to at least partially pass through the retaining channel and be securely held therein.
Claim 12
Dependent Claim
45 words
An orthodontic appliance as defined in claim 3, wherein two resilient retaining fingers are provided each integral and in cantilevered relationship with said pin, said two retaining fingers being substantially parallel to one another and arranged to abut against the front face of the bracket.
Claim 13
Dependent Claim
67 words
An orthodontic appliance as defined in claim 3, wherein said bracket has a front surface and side surfaces, the arch wire receiving channel extending between the side surfaces and opening in the front surface, and wherein said finger means comprises a resilient retaining finger arranged to resiliently abut against the front surface of the bracket to cover at least a portion of the arch wire receiving channel.
Claim 14
Dependent Claim
38 words
An orthodontic appliance as defined in claim 1, wherein the bracket has an upper open arch wire receiving channel, and wherein sAid appliance further comprises holding means for retaining the arch wire in said open wire receiving channel.
Claim 15
Dependent Claim
49 words
An orthodontic appliance as defined in claim 13, wherein said holding means comprises a pin extending through the bracket a free end portion of which is deformed so as to at least partially close the open channel, whereby the wire is prevented from moving out of the open channel.
Claim 16
Dependent Claim
65 words
An orthodontic appliance as defined in claim 13, wherein said holding means comprises a pin extending through the bracket provided with an elongated projection extending substantially transversely of said pin and arranged on the latter so as to at least partially close the open channel when said pin is mounted on said bracket, whereby the wire is prevented from moving out of the open channel.
References Cited (Backward Citations)
US1821171A
Cited
US3076265A
Cited
US3256602A
Cited
US3237305A
Cited
US3374542A
Cited
US3408739A
Cited
US3606685A
Cited
US3633277A
Cited
US3641672A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-09-16 | 1978-03-18 | 1978-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-16 | 1982-03-18 | 1982-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-16 | 1986-03-18 | 1986-09-17 | $7700.00 | Window Closed / Lapsed |