Crystallization furnace for dental prostheses

- Olympus
Description

FIG. 1 is a front elevational view of a crystallization furnace for dental prostheses showing our new design with the central stage raised into position for heating a dental prothesis (not shown) mounted thereof;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a right side elevational view thereof;

FIG. 7 is a front isometric view thereof; and,

FIG. 8 is a front isometric view thereof with the central stage shown in lowered position.

Referenced Cited
U.S. Patent Documents
D184839 April 1959 Van Sciver
D202317 September 1965 Waltman
D227368 June 1973 House, II
D246255 November 1, 1977 Truette
D283046 March 18, 1986 Botich
Patent History
Patent number: D336336
Type: Grant
Filed: Jan 23, 1991
Date of Patent: Jun 8, 1993
Assignees: Olympus Optical Company, Ltd. (Tokyo), Denken Co., Ltd. (Kyoto)
Inventors: Yasuharu Hakamatsuka (Tokyo), Kazuhiro Watanabe (Tokyo), Mamoru Aihara (Tokyo), Manabu Takahashi (Tokyo), Toshio Shimizu (Kyoto)
Primary Examiner: Wallace R. Burke
Assistant Examiner: M. H. Tung
Attorney: Carroll F. Palmer
Application Number: 7/645,010
Classifications
Current U.S. Class: Dental (46) (D24/176)