Dentistry – Apparatus – Having motor or means to transmit motion from motor to tool
Patent
1995-08-16
1997-11-04
Smith, Jeffrey A.
Dentistry
Apparatus
Having motor or means to transmit motion from motor to tool
433115, 433125, A61C 300
Patent
active
056832478
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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patent: 4486175 (1984-12-01), Fisher et al.
patent: 5062796 (1991-11-01), Rosenberg
patent: 5160263 (1992-11-01), Meller et al.
patent: 5484284 (1996-01-01), Bailey
Smith Jeffrey A.
Young Dental Manufacturing Company
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