Dental prophylaxis angle
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United States of America Patent
Stats
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Jun 13, 1995
Issued Date -
N/A
app pub date -
Apr 7, 1994
filing date -
Nov 15, 1990
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A plastic, disposable, easy-to-assemble dental angle is provided. The angle includes a one-piece hollow body having a head at its front end which is angled with respect to the body. Both the head and the body have a bore therethrough. The head has an aperture which is centered with respect to the bore of the body to allow insertion of a drive gear through the head of the angle. A driven gear is inserted in the head from the above. A snap cap fits within the head over the driven gear to lock both the drive gear and the driven gear in the angle. A sheath on the cap covers the aperture. A latch on the cap is received in the aperture to lock the cap to the head to hold the angle together. An elongated slot in the body permits the body to be force-fit on a dental handpiece. In an alternative embodiment, the length of the angle is shortened so that the thrust load produced during use is carried by a rolling contact in the handpiece to which the angle is secured, rather than by a sliding, friction-producing, contact between the drive gear's shaft and the surfaces of the angle itself. In a third embodiment, a simple, disposable contra-angle is provided.
First Claim
Family
- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
- YOUNG DENTAL MANUFACTURING I, LLC
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Bailey, Ronald L | Harvester, MO | 28 | 1286 |
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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