US3753291A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dental restoration dowel positioner
Assignee: So-Mar Dental Studios Inc
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Filing: 1971-11-30
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Granted: 1973-08-21
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Expires: 1991-11-30
Abstract
Abstract A dental restoration dowel positioner includes a base plate of magnetic material and a flat table resiliently mounted above the base plate and carrying an electrical vibrator. A pair of clamps are mounted on the table and releaseably clamp arms extending from pans holding dental impressions. A number of universally adjustable brackets are provided and each includes a permanent magnet coupling base magnetically retained on the base plate and movable along its face, a post projecting from the coupling base above the table and supporting an arm by a ball and socket joint. The arm terminates in a second ball and socket joint which supports an element for releaseably engaging a dowel for universal adjustment relative to the dental impression.
Inventors
- 👤 H Bocian
- 👤 N Hauptman
- 👤 G Manik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:56
CPC Classifications
A; A61; A61C; A61C9/00; A61C9/002
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
83 words
A dental restoration apparatus comprising a base member formed of magnetic material, a mount member secured to and position above said base member, means for separably supporting a dental impression upon said mount member, a permanent magnet releaseable connecting device located on and adjustable along the face of said base member and separably magnetically retained there, a universally adjustable bracket mounted on said connecting device and extending above said mount member, and a dowel engaging element supported by said bracket and adjustable therewith.
Claim 2
Dependent Claim
83 words
A dental restoration apparatus comprising a base member formed of magnetic material, a mount member secured to and position above said base member, means for separably supporting a dental impression upon said mount member, a permanent magnet releaseable connecting device located on and adjustable along the face of said base member and separably magnetically retained there, a universally adjustable bracket mounted on said connecting device and extending above said mount member, and a dowel engaging element supported by said bracket and adjustable therewith.
Claim 3
Dependent Claim
43 words
The apparatus of claim 1 wherein said bracket comprises a post mounted on said connecting device, an arm mounted atop and angularly adjustable relative to said post and terminating at its free end in an angularly adjustable joint supporting said dowel engaging element.
Claim 4
Dependent Claim
35 words
The apparatus of claim 2 wherein said arm is connected to said post by a ball and socket joint, and said joint at the free end of said arm comprises a ball and socket joint.
Claim 5
Dependent Claim
47 words
The apparatus of claim 1 wherein said base member comprises a horizontal plate of magnetic material and said mount member comprises a horiziontal plate of lesser peripheral dimensions than said base plate, and posts supporting said mount plate above said base plate and secured to said plates.
Claim 6
Dependent Claim
14 words
The apparatus of claim 4 including a vibrator member mounted on said mount plate.
Claim 7
Dependent Claim
16 words
The apparatus of claim 5 including elastomeric cushions located between said mount plate and said posts.
Claim 8
Independent Claim
18 words
The apparatus of cliam 1 wherein said dental impression supporting means comprises a pan containing said dental impression.
Claim 9
Independent Claim
18 words
The apparatus of cliam 1 wherein said dental impression supporting means comprises a pan containing said dental impression.
Claim 10
Dependent Claim
32 words
The apparatus of claim 7 wherein said dental impression supporting means comprises a leg depending and extending outwardly from said pan and means for separably securing said leg to said mount member.
Claim 11
Dependent Claim
19 words
The apparatus of claim 8 wherein said securing means comprises a clamp releasably clamping said leg and mount member.
Claim 12
Dependent Claim
43 words
The apparatus of claim 9 wherein said clamp comprises an upwardly extending arm secured to said mount and terminating in a horizontally projecting leg provided with a tapped vertical bore and a screw member engaging said bore and directed toward said mount member.
References Cited (Backward Citations)
US2836849A
Cited
US3650032A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-08-20 | 1977-02-19 | 1977-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-20 | 1981-02-19 | 1981-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-20 | 1985-02-19 | 1985-08-21 | $7700.00 | Window Closed / Lapsed |