US3722094A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means for the resilient securing of tooth substitutes
Assignee: RIVOIR KARL
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Filing: 1970-08-27
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Granted: 1973-03-27
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Expires: 1990-08-27
Abstract
Abstract Means for the resilient and preferably releasable mounting of tooth replacements or substitutes, particularly individual teeth in a plate or bridge or the like, where elastic yielding in axial as well as radial direction is possible, and where a support member is provided on the tooth which engages a supporting housing of the plate or the like with axial and radial tolerance, and between supporting member and supporting housing an axially and radially effective supporting spring or other elastically effective member is provided and the supporting member and the supporting housing having corresponding sliding, rolling or other engagement surfaces that permit a laterally directed tilting or relative movement and an axial movement between the supporting member and supporting housing.
Inventors
- 👤 K Rivoir
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:33
CPC Classifications
A; A61; A61C; A61C13/00; A61C13/225; A61C13/30
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
102 words
Means for the resilient mounting of tooth replacements such as individual teeth in a prothesis, having a plate or bridge permitting yielding of the tooth support axially as well as radially, comprising a tooth having a supporting element, a prothesis provided with a supporting housing for engagement by said supporting element and a resilient element disposed between said supporting element and said supporting housing adapted to yield axially and radially, said supporting element and said supporting housing having corresponding axially extending sliding engagement surfaces and laterally extending engagement surfaces permitting axial and radial movement intermediate said supporting element and said supporting housing.
Claim 2
Dependent Claim
102 words
Means for the resilient mounting of tooth replacements such as individual teeth in a prothesis, having a plate or bridge permitting yielding of the tooth support axially as well as radially, comprising a tooth having a supporting element, a prothesis provided with a supporting housing for engagement by said supporting element and a resilient element disposed between said supporting element and said supporting housing adapted to yield axially and radially, said supporting element and said supporting housing having corresponding axially extending sliding engagement surfaces and laterally extending engagement surfaces permitting axial and radial movement intermediate said supporting element and said supporting housing.
Claim 3
Dependent Claim
18 words
Means in accordance with claim 1 where said engagement surfaces extend outwardly and are directed toward the prothesis.
Claim 4
Dependent Claim
52 words
Means in accordance with claim 2 where said supporting element comprises a base member and a bolt and said supporting housing has a counter bearing wall for said bolt, and where said resilient element is a spring disposed intermediate said housing and said bolt biasing said bolt against said counter bearing wall.
Claim 5
Dependent Claim
27 words
Means in accordance with claim 3 where said bearing wall defines a bore and the diameter of said bore is greater than the diameter of said bolt.
Claim 6
Dependent Claim
59 words
Means in accordance with claim 4 where said base and said counter bearing wall present oppositely disposed engagement surfaces, said spring being adapted to yield a predetermined distance, and said engagement surfaces being spaced from one another when said tooth is free of chewing pressure by a space corresponding to the distance that said spring is adapted to yield.
Claim 7
Dependent Claim
33 words
Means in accordance with claim 5 where said supporting bolt has a part opposite said counter bearing wall defining a sliding surface cooperating with a corresponding sliding surface on said counter bearing wall.
Claim 8
Dependent Claim
35 words
Means in accordance with claim 6 where said corresponding sliding surfaces on said base and on said supporting housing extend substantially parallel to corresponding sliding surfaces between said counter bearing wall and said supporting bolt.
Claim 9
Dependent Claim
48 words
Means in accordance with claim 7 where said supporting housing defines a hollow cylinder having one end surface defined by said counter bearing wall and another end surface defining the bottom of said cylinder and where said one end of said spring engages said bottom in said cylinder.
Claim 10
Dependent Claim
28 words
Means in accordance with claim 8, characterized in that the end surface of the supporting bolt presents a recess adapted to receive the other end of said spring.
Claim 11
Dependent Claim
24 words
Means in accordaNce with claim 9 where the individual tooth and the prothesis receiving the same are releasable, by means of threaded engagement portions.
References Cited (Backward Citations)
US2854746A
Cited
US2880508A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-03-26 | 1976-09-25 | 1977-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-26 | 1980-09-25 | 1981-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-26 | 1984-09-25 | 1985-03-27 | $7700.00 | Window Closed / Lapsed |