Title: Contra-angle head for dentistry

Abstract: A rigid tubular housing provides separate enclosures for a drive shaft and a dental tool that are rotatable on axes that are angularly related. A wall separating the two enclosures provides bearing support for tool-driving gears in one of the enclosures and connection to a driving shaft in the other. A latching mechanism envelops the housing and covers it smoothly. The latching mechanism is movable on the longitudinal axis of the tubular housing for controlling access to the enclosure for a dental tool.

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Inventors: Lustig, Leopold P. (304 Greenwood St., Newton Centre, MA, 02159)

Application Number: 06/075013
Filing Date: 1979-09-13
Publication_date: 1981-05-19
Assignee: Lustig, Leopold P.

Primary Class(es): 433/128 433/126, 433/116, 433/133
Other Classes: A61C1/14; A61C1/18; A61C1/08; A61C1/14
US Patent Ref:

0684951	October, 1901	Rothkranz	433/116
0886862	May, 1908	Repsold	433/116
1042039	October, 1912	Schlund	433/116
1380717	June, 1921	Herman	433/125	Angled handpiece
1497561	June, 1924	Gruss	433/116	Sanitary shield for dental engine handpieces
1691823	November, 1928	Ogilvie	433/116	Cover for dental drill handpieces
2202299	May, 1940	Pelkey	433/133	Dental polishing machine
2319328	May, 1943	Kaltenbach	433/116	Angle piece
2591772	April, 1952	Bjorklund	433/133	Locking device for contraangle handpieces
2752682	July, 1956	Wiseman	433/127	Dental tool having shock absorbing mounting
2894325	July, 1959	Flatland	433/128	Self-contained dental handpiece
3798777	March, 1974	Reiter	433/133	DENTAL HANDPIECE
4053983	October, 1977	Flatland	433/133	Prophylactic angle head for use with a dental handpiece

Other Refs: DE525670FR626591GB11870

May, 1931	433/126
September, 1927	433/127
July, 1902	433/133

Primary Examiner: Mancene, Gene
Assistant Examiner: Wilson, John J.
Attorney: Rosen, Alfred H.

Claims:

I claim: