US3645260A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dental desensitizer
Assignee: HEALTH SYSTEMS Inc
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Filing: 1970-07-17
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Granted: 1972-02-29
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Expires: 1990-07-17
Abstract
Abstract A dental desensitizer apparatus which includes a hollow dielectric housing having therein a source of electrical energy connected to a current regulating means connected to and for activating a lamp carried at one end of said housing. Said means being operative to light said lamp only when the current output of the regulating means is of a selected amperage. A translucent cover closing said housing across said lamp and an oral operating extension selectively separable from said housing attached to the other end of said housing. Said extension being of a translucent soft and flexible dielectric material and having formed therein a pair of cavities each communicating with a separate porous spongelike pad disposed on opposite sides of the tip of the extension. Electrical connection is made between each of said pads and the output of said regulating means.
Inventors
- 👤 William R Cinotti
- 👤 Joseph Panico
- 👤 Robert J Barton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 01:50
CPC Classifications
A; A61; A61N; A61N1/00; A61N1/18; A61N1/20; A61C; A61C19/00; A61C19/06; A61N1/30; A61N1/303
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
233 words
An electric electrolytic desensitizer and decay inhibitor which comprises: a hollow rigid dielectric body having supported therein, a battery a lamp directed outwardly and having one terminal thereof detachably coupled to one terminal of said battery, constant current regulating means having its power input terminals connected across said battery and having a pair of output terminals, the other terminal of said lamp connected to said regulating means whereby when said regulating means are operative said lamp will be ignited, an oral operative extension of a flexible dielectric material formed so as to provide therein a pair of cavities, and being closed by a wall at one end, the opposite end of said extension formed to converge toward a tip portion, a pair of applicators disposed on opposite faces of said tip portion, a pair of channels communicating directly between said applicators and their respective said cavities, electrical and support coupling means partially carried by said extension and said body detachably coupling said oral extension thereto, and electrically coupling said output terminals to said applicators, whereby when said extension is coupled to said body, said cavities filled with a dental medicant electrolyte, and one of said applicators disposed against a patient''s tooth, a constant selectable current will flow through said applicator, said electrolyte, said tooth, patient''s oral tissue and the other of said applicators and said lamp will be ignited to indicate proper operation.
Claim 2
Dependent Claim
233 words
An electric electrolytic desensitizer and decay inhibitor which comprises: a hollow rigid dielectric body having supported therein, a battery a lamp directed outwardly and having one terminal thereof detachably coupled to one terminal of said battery, constant current regulating means having its power input terminals connected across said battery and having a pair of output terminals, the other terminal of said lamp connected to said regulating means whereby when said regulating means are operative said lamp will be ignited, an oral operative extension of a flexible dielectric material formed so as to provide therein a pair of cavities, and being closed by a wall at one end, the opposite end of said extension formed to converge toward a tip portion, a pair of applicators disposed on opposite faces of said tip portion, a pair of channels communicating directly between said applicators and their respective said cavities, electrical and support coupling means partially carried by said extension and said body detachably coupling said oral extension thereto, and electrically coupling said output terminals to said applicators, whereby when said extension is coupled to said body, said cavities filled with a dental medicant electrolyte, and one of said applicators disposed against a patient''s tooth, a constant selectable current will flow through said applicator, said electrolyte, said tooth, patient''s oral tissue and the other of said applicators and said lamp will be ignited to indicate proper operation.
Claim 3
Dependent Claim
75 words
The desensitizer accordIng to claim 1 wherein said couplings include: a pair of pronglike electrodes supported in and extending out of said body at the end opposite said lamp, a pair of recesses in said wall of said extension mating with and receiving said electrodes, said recesses being provided with electrical contact means therein contacting said electrodes, electrically conducting means disposed intermediate said applicators and said tip faces and connected to said electrical contact means.
Claim 4
Dependent Claim
124 words
The desensitizer according to claim 2 wherein said current regulating means comprises: a pair of series connected resistors forming a divider network, a second resistor a first transistor having its base electrode connected to the junction of said series resistors, and an emitter and collector electrodes, second and third transistors each having base, emitter and collector electrodes, a series loop path having connected therein said series resistors said second resistor said emitter and collector electrodes of said first transistor said output terminals, said base and emitter of said second transistor and said base and emitter of said third transistor, said collectors of said second and third transistors connected to the other terminal of said lamp, said power input terminals connected across said series resistors,
Claim 5
Dependent Claim
23 words
The desensitizer according to claim 3 wherein said second resistor is a variable resistor for selectively adjusting the current of said regulating means.
Claim 6
Dependent Claim
12 words
The desensitizer according to claim 4 wherein said applicators are foamlike pads.
Claim 7
Dependent Claim
19 words
The desensitizer according to claim 5 further including a detachable lens cap threaded into said body over said lamp.
Claim 8
Dependent Claim
17 words
The desensitizer according to claim 6 wherein said body and said extensions are circular in cross section.
Claim 9
Dependent Claim
36 words
The desensitizer according to claim 7 further including a circuit board having connected and supported thereon said regulating means components, said body being provided with a pair of opposed grooves and supporting therein said circuit board.
Claim 10
Dependent Claim
26 words
The desensitizer according to claim 8 wherein said tip is Y-shaped and said applicator are carried by the arms of said Y-shaped tip and directed outwardly.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-02-28 | 1975-08-30 | 1976-02-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-28 | 1979-08-30 | 1980-02-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-28 | 1983-08-30 | 1984-02-29 | $7700.00 | Window Closed / Lapsed |