Title: Training machine for intra-oral instrumentation

Abstract: A training machine for intra-oral instrumentation for dental treatment which comprises a plate carrying an electrically conductive path on the surface thereof; an imitation dental instrument with an imitation dental tool detachably attached thereto, so that a trainee traces said conductive path with said tool; and means for measuring the time during which said conductive path is being traced with said tool. A shield is attachable to the machine so that the trainee can look at the pattern of the conductive path either directly without the shield or only through a mirror with the shield attached to the machine.

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Inventors: Ueno, Hiroshi (Portland, OR, US)
Grenfell, James W. (Portland, OR, US)
Sorenson, Fred M. (Portland, OR, US)
Hozumi, Kazuo (Joyo, JA)

Application Number: 493692
Filing Date: 1974-08-01
Publication_date: 1976-03-16
Assignee: Kabushiki Kaisha Morita Seisakusho (Kyoto, JA)
Primary Class(es): 434/263 273/440, 273/455, 273/460
Other Classes:
US Patent Ref:

2095511	Oct, 1937	Oberto	32/71.
2207153	Jul, 1940	Judovich	35/17.
2265598	Dec, 1941	Firestone et al.	273/1.
2521500	Sep, 1950	Braund	273/88.
2808263	Oct, 1957	Goldfinger et al.	273/1.
2943855	Jul, 1960	Javna et al.	273/1.
3029526	Apr, 1962	Olalainty	273/1.
3299512	Jan, 1967	Brigante	32/71.
3562927	Feb, 1971	Moskowitz	35/37.
3673708	Jul, 1972	Bevens	35/37.
3690020	Sep, 1972	McBratnie	35/37.

Other Refs: 1,119,462

Dec, 1961	DT

Primary Examiner: Mancene, Louis G.
Assistant Examiner:
Attorney: Christensen, O'Connor, Garrison & Havelka