Articular arm for mounting and positioning a head model for dental student use

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Description

FIG. 1 is a top perspective view of an articulator arm, for mounting and positioning a head model for dental student use, embodying my new design, with a mounting post (shown in broken lines) for illustrative purposes only;

FIG. 2 is a bottom perspective view thereof; and

FIG. 3 is a bottom plan view thereof.

Referenced Cited
U.S. Patent Documents
2178717 November 1939 Burtenshaw
2919091 December 1959 Vandercook
3520060 July 1970 Crabtree et al.
4035920 July 19, 1977 Saupe
Foreign Patent Documents
466340 May 1937 GBX
Patent History
Patent number: D255718
Type: Grant
Filed: Mar 2, 1978
Date of Patent: Jul 1, 1980
Assignee: Adcoa, Inc. (Portland, OR)
Inventor: Roderick S. Hunt (Portland, OR)
Primary Examiner: Bernard Ansher
Attorney: Daniel P. Chernoff
Application Number: 5/883,042
Classifications
Current U.S. Class: D24/99; D/8355
International Classification: D2499;