Investment casting apparatus for jewelers

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Description

FIG. 1 is a perspective view of the investment casting apparatus for jewelers, showing my new design;

FIG. 2 is a top view of the apparatus, with the hose (of indefinite length) which is connected to an external source of vacuum being shown as broken off adjacent the apparatus;

FIG. 3 is a bottom view of the apparatus;

FIG. 4 is a front view of the apparatus;

FIG. 5 is a back view of the apparatus;

FIG. 6 is a right side view of the apparatus; and

FIG. 7 is a left side view of the apparatus.

Referenced Cited
U.S. Patent Documents
D194194 December 1962 Antoine
3635446 January 1972 Kurosawa
Patent History
Patent number: D246979
Type: Grant
Filed: May 17, 1976
Date of Patent: Jan 17, 1978
Inventor: David V. Estes (Fort Worth, TX)
Primary Examiner: Alan P. Douglas
Attorney: Charles W. McHugh
Application Number: 5/686,784
Classifications
Current U.S. Class: Molding Or Casting (D15/135)
International Classification: D1509;