Patent US3646680A successfully refreshed from Google Patents.
US3646680A
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Orthodontic force model
Assignee: Individual
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Filing: 1970-07-30
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Granted: 1972-03-07
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Expires: 1990-07-30
Abstract
Abstract An orthodontic force model comprising a pair of simulated teeth suspended by springs and a conventionally shaped orthodontic face bow for applying a variable force to the teeth simulating the force which may be applied by extra-oral orthodontic apparatus. Application of the external forces causes tooth displacement which may be observed and compared to the normal tooth position. The model may be used for demonstrating and explaining the orthodontic process to an orthodontic patient and is also a useful experimental tool for the orthodontist.
Inventors
- 👤 John L Wollney
- 👤 Ronald W Jawor
- 👤 Norman L Sanders
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:29
CPC Classifications
G; G09; G09B; G09B23/00; G09B23/28; G09B23/283
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
48 words
An orthodontic model comprising a tooth full view including a vertical support means for independently supporting the tooth in a manner simulating support thereof in a patient''s mouth and permitting tooth displacement responsive to application of external force and extraoral means for applying external force to said tooth.
Claim 2
Dependent Claim
48 words
An orthodontic model comprising a tooth full view including a vertical support means for independently supporting the tooth in a manner simulating support thereof in a patient''s mouth and permitting tooth displacement responsive to application of external force and extraoral means for applying external force to said tooth.
Claim 3
Dependent Claim
35 words
An orthodontic model as set forth in claim 1 wherein said extraoral means comprise: a conventionally shaped orthodontic face bow cooperating with said tooth and wherein said external force is applied through said face bow.
Claim 4
Dependent Claim
31 words
The orthodontic model as set forth in claim 1 wherein said support means comprise resilient elements supporting said tooth in a position it would normally assume without application of external force.
Claim 5
Dependent Claim
35 words
The orthodontic model as set forth in claim 3 wherein said resilient support elements permit vertical and horizontal movements of the tooth in a vertical plane aNd permit pivotal tooth movement about a horizontal axis.
Claim 6
Dependent Claim
19 words
The orthodontic model as set forth in claim 1 including additionally: means facilitating visual observation of said tooth displacement.
Claim 7
Dependent Claim
27 words
The orthodontic model as set forth in claim 1 wherein said extraoral means include: means for varying the magnitude of the external force applied to said tooth.
Claim 8
Dependent Claim
27 words
The orthodontic model as set forth in claim 1 wherein said extraoral means include: means for varying the direction of the external force applied to said tooth.
Claim 9
Dependent Claim
55 words
The orthodontic model as set forth in claim 1 wherein said extraoral means comprise: a conventionally shaped orthodontic face bow comprising an inner bow cooperating with said tooth and an extraoral outer bow, and means cooperating with an end of the extraoral bow for varying the magnitude and direction of the external force applied thereto.
Claim 10
Dependent Claim
36 words
The orthodontic model as set forth in claim 8 including means attaching the inner bow to the tooth in a manner permitting convenient removal thereby facilitating adjustment of the inner bow relative to the outer bow.
Claim 11
Dependent Claim
40 words
The orthodontic model as set forth in claim 9 including additionally: cross hatch means mounted adjacent said tooth to facilitate comparison of the displaced position of said tooth relative to its normal position responsive to application of the external force.
Claim 12
Dependent Claim
52 words
An orthodontic force model comprising: a pair of spaced apart left and right molars simulating the similarly located molars on each side of the medial line of a human jaw; means supporting said molars for displacement responsive to application of external force thereto and extraoral means for applying force to said molars.
Claim 13
Dependent Claim
52 words
An orthodontic force model comprising: a pair of spaced apart left and right molars simulating the similarly located molars on each side of the medial line of a human jaw; means supporting said molars for displacement responsive to application of external force thereto and extraoral means for applying force to said molars.
Claim 14
Dependent Claim
33 words
The orthodontic force model as set forth in claim 11 including additionally: means coupling said molars for conjoint movement and wherein the external force is applied to said molars through said coupling means.
Claim 15
Dependent Claim
25 words
The orthodontic force model as set forth in claim 11 including additionally: means for varying the direction of the external force applied to said molars.
Claim 16
Dependent Claim
27 words
The orthodontic force model as set forth in claim 11 including additionally: means for varying the magnitude and direction of the external force applied to said molars.
Claim 17
Dependent Claim
33 words
The orthodontic force model as set forth in claim 14 including additionally: means coupling said molars for conjoint movement and wherein the external force is applied to said molars through said coupling means.
Claim 18
Dependent Claim
33 words
The orthodontic force model as set forth in claim 15 wherein said coupling means comprise a conventionally shaped orthodontic face bow having an inner bow connected to said molars and an outer bow.
Claim 19
Dependent Claim
31 words
The orthodontic force model as set forth in claim 16 including means removably connecting the inner bow to said molars facilitating adjustment of the inner bow relative to the outer bow.
Claim 20
Dependent Claim
27 words
The orthodontic force model as set forth in claim 15 wherein said molars are suspended by a plurality of springs simulating support thereof in a human jaw.
Claim 21
Dependent Claim
39 words
The orthodontic force model as set forth in claim 18 including additionally: graph means disposed adjacent the molars to facilitate comparison of the molar position with application of external force vis-a-vis the molar position without application of external force.
Claim 22
Dependent Claim
69 words
An orthodontic force model comprising: a frame including a pair of spaced apart support members; at least two simulated teeth comprising similarly located teeth on opposite sides of the medial line of a human jaw; means supporting one of said teeth for independent movement on each support member, and extraoral means for applying an external force to said teeth thereby effecting displacement of said teeth from their normal position.
Claim 23
Dependent Claim
69 words
An orthodontic force model comprising: a frame including a pair of spaced apart support members; at least two simulated teeth comprising similarly located teeth on opposite sides of the medial line of a human jaw; means supporting one of said teeth for independent movement on each support member, and extraoral means for applying an external force to said teeth thereby effecting displacement of said teeth from their normal position.
Claim 24
Dependent Claim
64 words
The orthodontic force model as set forth in claim 20 wherein said extraoral means comprise a conventionally shaped orthodontic face bow comprising an inner bow removably connected to said teeth and an outer bow; said outer bow having its terminal ends connected to tension sprinGs; and wherein said support numbers comprises a pair of spaced apart transparent walls enabling clear observation of tooth displacement.
Claim 25
Dependent Claim
27 words
The orthodontic force model as set forth in claim 21 including additionally: means for varying the magnitude and direction of the force applied to the outer bow.
Claim 26
Dependent Claim
53 words
The orthodontic force model as set forth in claim 22 further including graph means carried on at least one wall juxtaposition a tooth supported thereat for facilitating comparison of the normal position of said tooth without external force applied thereto and the relative displacement of said tooth responsive to application of external force.
References Cited (Backward Citations)
US2539278A
Cited
US3422536A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-03-07 | 1975-09-06 | 1976-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-07 | 1979-09-06 | 1980-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-07 | 1983-09-06 | 1984-03-07 | $7700.00 | Window Closed / Lapsed |