Patent US3590487A successfully refreshed from Google Patents.
US3590487A
Expired / Lapsed
US
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Dental articulator
Assignee: TDY Industries LLC
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Filing: 1968-09-23
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Granted: 1971-07-06
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Expires: 1988-09-23
Abstract
Abstract An arcon-type articulator is described with fossa guide means which permit lateral, vertical and posterior-anterior translation of rotating condyles during lateral rotation of the members. The articulator has improved incisal table means with a permanent reference rest for the incisal pin and adjustable means to permit a limited degree of relative movement of the anterior ends of the members without vertical separation.
Inventors
- 👤 Niles F Guichet
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:40
CPC Classifications
A; A61; A61C; A61C11/00; A61C11/02; A61C11/022; A61C11/06
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
203 words
In a dental articulator comprising first and second frame members with means to support dental casts in opposed relationship wherein one of the members supports a condyle at each of its opposite sides of its posterior end and the other member supports fossa guides in engagement with the condyles and wherein one of the members, at its anterior end, supports an incisal table with means permitting varied angular settings of the incisal table and the other member supports an incisal pin bearing a shoe member in engagement with the table, the improvement comprising adjustable means securing said shoe to the incisal pin permitting a limited withdrawal of the bearing point of said shoe member from the incisal table guide to permit relative movement of the frame members without vertical separation of the anterior ends of the members, scale means carried by one of the members to register the degree of such displacement and an incisal pin rest to support the incisal when the frames are in centric position secured to the one frame member with means maintaining a fixed position of the rest independently of variation in the angular setting of the incisal table and the degree of withdrawal of said bearing point.
Claim 2
Dependent Claim
203 words
In a dental articulator comprising first and second frame members with means to support dental casts in opposed relationship wherein one of the members supports a condyle at each of its opposite sides of its posterior end and the other member supports fossa guides in engagement with the condyles and wherein one of the members, at its anterior end, supports an incisal table with means permitting varied angular settings of the incisal table and the other member supports an incisal pin bearing a shoe member in engagement with the table, the improvement comprising adjustable means securing said shoe to the incisal pin permitting a limited withdrawal of the bearing point of said shoe member from the incisal table guide to permit relative movement of the frame members without vertical separation of the anterior ends of the members, scale means carried by one of the members to register the degree of such displacement and an incisal pin rest to support the incisal when the frames are in centric position secured to the one frame member with means maintaining a fixed position of the rest independently of variation in the angular setting of the incisal table and the degree of withdrawal of said bearing point.
Claim 3
Dependent Claim
46 words
The articulator of claim 1 wherein the incisal table extends posteriorly of said incisal pin and is secured to the first frame member with means permitting pivoting of the table about an axis along its anterior edge and parallel to the axis passing through the condyles.
Claim 4
Dependent Claim
27 words
The articulator of claim 1 wherein the incisal table has right and left guide wings pivotably mounted on axes perpendicular to the axis passing through the condyles.
Claim 5
Dependent Claim
31 words
The articulator of claim 1 wherein the adjustable means comprises a shoe mounted on the end of the incisal pin in a sliding engagement along the longitudinal axis of the articulator.
Claim 6
Dependent Claim
190 words
In a dental articulator comprising first and second frame members having means to support removable dental casts in opposed relationship wherein the first frame member supports a condyle at each of its opposite sides of its posterior end and supports an incisal table guide means and pin supPort means at its anterior end and wherein the second frame member bears at opposite sides of its posterior end a fossa guide assembly comprising a continuous superior fossa guide member and a posterior fossa guide member in engagement with their respective condyle supported by the first member and at its anterior end an upright incisal pin engageable with the incisal table guide means and pin support means, the improvement comprising: attachment means securing said posterior and said continuous superior fossa guide members to the fossa guide assembly and permitting angular setting of each of said members about said condyle independently of the angular setting of the remaining member, means to lock the position of each of the guide members in the assembly and first and second scale means carried by the fossa assembly to register the angular setting of the guide members.
Claim 7
Dependent Claim
190 words
In a dental articulator comprising first and second frame members having means to support removable dental casts in opposed relationship wherein the first frame member supports a condyle at each of its opposite sides of its posterior end and supports an incisal table guide means and pin supPort means at its anterior end and wherein the second frame member bears at opposite sides of its posterior end a fossa guide assembly comprising a continuous superior fossa guide member and a posterior fossa guide member in engagement with their respective condyle supported by the first member and at its anterior end an upright incisal pin engageable with the incisal table guide means and pin support means, the improvement comprising: attachment means securing said posterior and said continuous superior fossa guide members to the fossa guide assembly and permitting angular setting of each of said members about said condyle independently of the angular setting of the remaining member, means to lock the position of each of the guide members in the assembly and first and second scale means carried by the fossa assembly to register the angular setting of the guide members.
Claim 8
Dependent Claim
75 words
The articulator of claim 5 including a lateral fossa guide member carried by the fossa guide assembly wherein the lateral guide member has attachment means securing it to the assembly and permitting angular adjustment of the lateral member independently of the setting of the superior and posterior guide members, means to lock the position of the lateral guide member and a scale carried by the assembly to register the setting of the lateral guide member.
Claim 9
Dependent Claim
49 words
The articulator to claim 6 wherein the lateral guide member is attached to its respective fossa assembly with adjustment means permitting an immediate and entirely lateral shifting of the first and second frame members and wherein said assembly has scale means to register the degree of the lateral shifting.
Claim 10
Dependent Claim
38 words
The articulator of claim 6 wherein the lateral guide members have retaining means extending beneath their respective condyles to engage the under surface of said condyles and thereby permit locking the posterior of the members against vertical separation.
Claim 11
Dependent Claim
88 words
The articulator of claim 5 wherein said assembly comprises an extendible arm secured to said second frame member, a flange on the outboard end of said arm, a wing bracket secured to said flange and pivotable about an axis passing through said condyle, said continuous superior fossa guide member secured to said wing bracket and pivotable about a second axis passing through said condyle, and said posterior fossa guide member secured to said continuous superior fossa guide member and pivotable about a third axis passing through said condyle.
Claim 12
Dependent Claim
101 words
The articulator of claim 6 wherein said assembly comprises a plate supported on the anterior portion of said superior fossa guide member and pivotable about said third axis through said condyle and extending anteriorly of said superior fossa guide member, a lateral guide support member projecting below said superior fossa guide member and attached to the anterior edge of said plate by means permitting relative sliding displacement between said member and said plate with said lateral displacement guide member being secured to said support member and projecting posteriorly beneath said superior fossa guide member and into lateral engagement with said condyle.
Claim 13
Dependent Claim
43 words
The articulator of claim 6 wherein latch means are provided on one of the frame members operative to engage a centric indexing means on the other of the frame members whereby the frames can be indexed into alignment along a common longitudinal axis.
Claim 14
Dependent Claim
26 words
The articulator of claim 11 wherein the latch means bears an arcuate keyway and the centric indexing member is an arcuate key that engages the keyway.
Claim 15
Dependent Claim
35 words
The articulator of claim 12 wherein the arcuate key is freely slidable in the arcuate keyway to provide a hinged interconnection of the first and second frame members along an axis passing through the condyles.
Claim 16
Dependent Claim
27 words
The articulator of claim 13 wherein said keyway carries a pin operative with a groove on said key to interlock said members at a predetermined open position.
Claim 17
Dependent Claim
61 words
The articulator of claim 5 wherein said condyles are carried by upright legs that are mounted on said fIrst frame member with means permitting lateral movement of the condyles and wherein the fossa guide assemblies are secured to the second frame member with a telescoping relationship that permits lateral extension of the assemblies and means to prevent rotation of said assemblies.
Claim 18
Dependent Claim
55 words
The articulator of claim 5 wherein the condyles are bored on their outside faces on a common centerline in combination with removable plugs in said bores which extend about 10 to 12 millimeters along said centerline with means on the outside ends of said plugs for engagement with hinge axis centering pins of a pantograph.
Claim 19
Dependent Claim
30 words
The articulator of claim 5 wherein the fossa guides include a superior guide member with attachment means operative to secure any of several prefabricated guide surfaces of varied contours thereto.
References Cited (Backward Citations)
US3421225A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-07-05 | 1975-01-04 | 1975-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-05 | 1979-01-04 | 1979-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-05 | 1983-01-04 | 1983-07-06 | $7700.00 | Window Closed / Lapsed |