Patent US3654702A successfully refreshed from Google Patents.
US3654702A
Expired / Lapsed
US
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Non-cumulative-force spring for orthodontic devices
Assignee: Individual
•
Filing: 1969-01-21
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Granted: 1972-04-11
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Expires: 1989-01-21
Abstract
Abstract A force powered drum and cable device is utilized in place of latex elastic means in orthodontic correction systems.
Inventors
- 👤 Vincent M Kelly Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:15
CPC Classifications
A; A61; A61C; A61C7/00; A61C7/36
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
94 words
Apparatus to constantly apply a traction force vector in oral orthodontic correction systems comprising a rotatable drum; force means normally biasing said drum in one rotatable direction; a cable, one end of said cable attached to said drum and capable of being coiled thereabout; means to attach said drum at one position substantially adjacent one end of the desired traction force vector and means to attach the other free-end of said cable to the other end of said traction force vector whereby said force is applied along said traction force vector of orthodontic correction.
Claim 2
Dependent Claim
94 words
Apparatus to constantly apply a traction force vector in oral orthodontic correction systems comprising a rotatable drum; force means normally biasing said drum in one rotatable direction; a cable, one end of said cable attached to said drum and capable of being coiled thereabout; means to attach said drum at one position substantially adjacent one end of the desired traction force vector and means to attach the other free-end of said cable to the other end of said traction force vector whereby said force is applied along said traction force vector of orthodontic correction.
Claim 3
Dependent Claim
14 words
Apparatus of claim 1 wherein said drum is powered by a non-cumulative force spring.
Claim 4
Dependent Claim
13 words
Apparatus of claim 2 wherein said drum is powered by a cumulative spring.
Claim 5
Independent Claim
27 words
A method of orthodontic correction between teeth of the same arch comprising the step of: orally maintaining a stretchable constant non-cumulative spring traction force to said teeth.
Claim 6
Independent Claim
27 words
A method of orthodontic correction between teeth of the same arch comprising the step of: orally maintaining a stretchable constant non-cumulative spring traction force to said teeth.
Claim 7
Independent Claim
33 words
A method of orthodontic correction between teeth of the upper and lower arches comprising the step of: orally maintaining a stretchable non-cumulative spring traction force between said upper arch and said lower arch.
Claim 8
Independent Claim
33 words
A method of orthodontic correction between teeth of the upper and lower arches comprising the step of: orally maintaining a stretchable non-cumulative spring traction force between said upper arch and said lower arch.
References Cited (Backward Citations)
US1166753A
Cited
US2502902A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-04-11 | 1975-10-11 | 1976-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-11 | 1979-10-11 | 1980-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-11 | 1983-10-11 | 1984-04-11 | $7700.00 | Window Closed / Lapsed |