Unitary hot sprue bushing

Description

FIG. 1 is a side elevational view of a unitary hot sprue bushing showing my new design;

FIG. 2 is a view of the unitary hot sprue bushing illustrated in FIG. 1 with the unitary hot sprue bushing rotated about its horizontal axis 180 degrees;

FIG. 3 is an end view thereof taken from the left of FIG. 1;

FIG. 4 is an end view thereof taken from the right of FIG. 1; and,

FIG. 5 has been drawn on an enlarged scale with respect to FIGS. 1-4.

Referenced Cited
U.S. Patent Documents
D255577 June 24, 1980 Dahlquist
4273525 June 16, 1981 Reitan
4492555 January 8, 1985 Schultz
4517453 May 14, 1985 Tsutsumi
4666396 May 19, 1987 Shaw
4740151 April 26, 1988 Schmidt et al.
Patent History
Patent number: D324870
Type: Grant
Filed: Oct 31, 1988
Date of Patent: Mar 24, 1992
Assignee: Fairchild Industries, Inc. (Chantilly, VA)
Inventor: Robert W. Dealey (Rochester Hills, MI)
Primary Examiner: Bruce W. Dunkins
Assistant Examiner: Antoine D. Davis
Attorney: Michael W. York
Application Number: 7/265,431
Classifications