Patent US4176454A successfully refreshed from Google Patents.
US4176454A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ultrasonic tooth cleaner
Assignee: Biosonics International Ltd
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Filing: 1977-04-25
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Granted: 1979-12-04
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Expires: 1997-04-25
Abstract
Abstract An ultrasonic method and apparatus for removing dental plaque from teeth in situ and for cleaning the teeth employing a liquid couple for imparting ultrasonic energy to the surface of the teeth at ultrasonic energy levels which are not harmful to the teeth or gums.
Inventors
- 👤 Edward E. Hatter
- 👤 Richard H. Taylor
- 👤 Richard D. McGunigle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:55
CPC Classifications
A; A61; A61C; A61C17/00; A61C17/16; A61C17/20
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
164 words
An ultrasonic tooth cleaning device comprising: (a) a hand held housing mounting an ultrasonic energy generator adapted to be positioned outside the mouth; (b) a power supply connected to said ultrasonic energy generator; and (c) ultrasonic distributor means driven by said ultrasonic energy generator connected to said housing and terminating in a continuous, unbroken, hard, radiating surface adapted to be inserted through a lip seal into a person's mouth containing a liquid couplant for ultrasonically cleaning the person's teeth when said radiating surface is positioned in close proximity to said teeth, said ultrasonic distributor means including a longitudinally extending hollow tubular body having a head at one end and having upper and lower transversely extending grooves for receiving upper and lower teeth when said head is inserted into the oral cavity and having acoustical mirror means at one end thereof for impeding the flow of sonic energy axially of said longitudinally extending body and for redirecting such ultrasonic energy toward said transversely extending grooves.
Claim 2
Dependent Claim
164 words
An ultrasonic tooth cleaning device comprising: (a) a hand held housing mounting an ultrasonic energy generator adapted to be positioned outside the mouth; (b) a power supply connected to said ultrasonic energy generator; and (c) ultrasonic distributor means driven by said ultrasonic energy generator connected to said housing and terminating in a continuous, unbroken, hard, radiating surface adapted to be inserted through a lip seal into a person's mouth containing a liquid couplant for ultrasonically cleaning the person's teeth when said radiating surface is positioned in close proximity to said teeth, said ultrasonic distributor means including a longitudinally extending hollow tubular body having a head at one end and having upper and lower transversely extending grooves for receiving upper and lower teeth when said head is inserted into the oral cavity and having acoustical mirror means at one end thereof for impeding the flow of sonic energy axially of said longitudinally extending body and for redirecting such ultrasonic energy toward said transversely extending grooves.
Claim 3
Dependent Claim
129 words
An ultrasonic tooth cleaning device comprising: (a) a hand held housing mounting an ultrasonic energy generator adapted to be positioned outside the mouth; (b) a power supply connected to said ultrasonic energy generator; (c) ultrasonic distributor means driven by said ultrasonic energy generator connected to said housing and terminating in an oral probe having a continuous, unbroken, hard, radiating surface adapted to be inserted through a lip seal into a person's mouth containing a liquid couplant for ultrasonically cleaning the person's teeth when said radiating surface is positioned in close proximity to said teeth, said ultrasonic distributor including a resonant ultrasonic horn having a longitudinally extending rod which projects into said oral probe; and a metallic insert for transmitting sonic energy from the end of said longitudinally extending rod.
Claim 4
Dependent Claim
129 words
An ultrasonic tooth cleaning device comprising: (a) a hand held housing mounting an ultrasonic energy generator adapted to be positioned outside the mouth; (b) a power supply connected to said ultrasonic energy generator; (c) ultrasonic distributor means driven by said ultrasonic energy generator connected to said housing and terminating in an oral probe having a continuous, unbroken, hard, radiating surface adapted to be inserted through a lip seal into a person's mouth containing a liquid couplant for ultrasonically cleaning the person's teeth when said radiating surface is positioned in close proximity to said teeth, said ultrasonic distributor including a resonant ultrasonic horn having a longitudinally extending rod which projects into said oral probe; and a metallic insert for transmitting sonic energy from the end of said longitudinally extending rod.
Claim 5
Dependent Claim
130 words
An ultrasonic tooth cleaning device comprising: (a) a hand held housing mounting an ultrasonic energy generator adapted to be positioned outside the mouth; (b) a power supply connected to said ultrasonic energy generator; (c) ultrasonic distributor means driven by said ultrasonic energy generator connected to said housing and terminating in an oral a probe having a continuous, unbroken, hard, radiating surface adapted to be inserted through a lip seal into a person's mouth containing a liquid couplant for ultrasonically cleaning the person's teeth when said radiating surface is positioned in close proximity to said teeth, said ultrasonic distributor means including a resonant ultrasonic horn having a longitudinally extending rod which projects into said oral probe; and an elastomeric insert positioned between the end of said rod and said oral probe.
Claim 6
Dependent Claim
130 words
An ultrasonic tooth cleaning device comprising: (a) a hand held housing mounting an ultrasonic energy generator adapted to be positioned outside the mouth; (b) a power supply connected to said ultrasonic energy generator; (c) ultrasonic distributor means driven by said ultrasonic energy generator connected to said housing and terminating in an oral a probe having a continuous, unbroken, hard, radiating surface adapted to be inserted through a lip seal into a person's mouth containing a liquid couplant for ultrasonically cleaning the person's teeth when said radiating surface is positioned in close proximity to said teeth, said ultrasonic distributor means including a resonant ultrasonic horn having a longitudinally extending rod which projects into said oral probe; and an elastomeric insert positioned between the end of said rod and said oral probe.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-12-03 | 1983-06-04 | 1983-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-12-03 | 1987-06-04 | 1987-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-12-03 | 1991-06-04 | 1991-12-04 | $7700.00 | Window Closed / Lapsed |