Permanently lubricated dental prophylaxis angle
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United States of America Patent
Stats
-
Nov 4, 1997
Grant Date -
N/A
app pub date -
Aug 16, 1995
filing date -
Aug 16, 1995
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A maintenance-free dental prophylaxis angle includes a one-piece body including a sleeve and a head. The sleeve and head define intersecting bores. A drive assembly, comprising a drive gear and a bushing, is force fitted in the sleeve. A one-piece driven gear is received in the head bore to be driven by the drive assembly. The driven gear includes an upper bur robe, a gear part, and a lower shaft. The gear part of the driven gear rests on an upper face of a boss in the head, the boss forming a thrust beating for the driven gear. Intersecting bores in the boss form part of a lubricant circulating system. A metal cap is force fitted in the head bore to close the head bore and retain the driven gear in place in the head. A dental tool is connected to the bur tube of the driven gear, and forms a seal with the cap.
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Family
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