US3760504A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Parallelometer
Assignee: Individual
•
Filing: 1972-02-22
•
Granted: 1973-09-25
•
Expires: 1992-02-22
Abstract
Abstract A parallelometer comprising a platen for a jaw pattern and a support with a chuck for a working tool, secured on a common base. To set the platen with the jaw pattern to such a position relative to the working tool axis which is required for marking the topographical line on the teeth while determining the path of prosthetic device introduction by the bisectrix of the tooth inclination angle, the parallelometer has a sleeve with a socket for the working tool secured in the chuck, said sleeve being provided with a system of articulated rods intended to be aligned with the tooth axes and forming a rhomboid structure with changeable angles, one of the structure diagonals being directed along the axis of the working tool secured in the sleeve.
Inventors
- 👤 E Ljubarsky
- 👤 N Igonkin
- 👤 S Eidinov
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:53
CPC Classifications
A; A61; A61C; A61C19/00; A61C19/04; A61C19/055
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
138 words
A parallelometer comprising a base; a platen for a jaw pattern being secured to said base; a support mounted on said base; a chuck fastened to said support; a two-armed hinged lever interconnecting said chuck and platen for relative movement perpendicularly to the axis of said chuck and towards each other; a sleeve secured in said chuck; a socket in said sleeve for mounting a tooth-marking working tool; means connected to said sleeve extending parallel to said working tool; a system of articulated rods extending between and being fastened to said last-mentioned means and said sleeve, said rods adapted to be aligned with the tooth axes in said jaw pattern and forming a rhomboid structure with changeable angles, one of the diagonals of said rhomboid structure being directed along the axis of the working tool in said sleeve.
Claim 2
Dependent Claim
138 words
A parallelometer comprising a base; a platen for a jaw pattern being secured to said base; a support mounted on said base; a chuck fastened to said support; a two-armed hinged lever interconnecting said chuck and platen for relative movement perpendicularly to the axis of said chuck and towards each other; a sleeve secured in said chuck; a socket in said sleeve for mounting a tooth-marking working tool; means connected to said sleeve extending parallel to said working tool; a system of articulated rods extending between and being fastened to said last-mentioned means and said sleeve, said rods adapted to be aligned with the tooth axes in said jaw pattern and forming a rhomboid structure with changeable angles, one of the diagonals of said rhomboid structure being directed along the axis of the working tool in said sleeve.
Claim 3
Dependent Claim
98 words
A parallelometer according to claim 1 wherein said system of rods comprises two pairs of articulated rods; one end of the rods in each of said pair of rods is articulated to said sleeve; said parallel extending means including a longitudinally-movable rod arranged parallel to the axis of the working tool secured in said sleeve socket; a plate fastened to said rod; other ends of said rods in each of said pairs of rods, articulated to said plate; a drive nut fastened to said sleeve; a thread on the end of said rod, interacting with said drive nut.
Claim 4
Dependent Claim
17 words
A parallelometer according to claim 2 wherein said plate has a guide opening for the working tool.
References Cited (Backward Citations)
US1230156A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-09-24 | 1977-03-26 | 1977-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-24 | 1981-03-26 | 1981-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-24 | 1985-03-26 | 1985-09-25 | $7700.00 | Window Closed / Lapsed |