Foundry riser sleeve

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Description

FIG. 1 is a perspective view of the foundry riser sleeve of my new design;

FIG. 2 is a side elevation view thereof;

FIG. 3 is a front elevation view thereof; and

FIG. 4 is a bottom plan view thereof.

Referenced Cited
U.S. Patent Documents
3602292 August 1971 Baur
Foreign Patent Documents
1,433,938 October 1968 DEX
Patent History
Patent number: D248480
Type: Grant
Filed: Sep 7, 1976
Date of Patent: Jul 11, 1978
Assignee: Foseco International Limited
Inventor: Tony William Bastock (Sandbach)
Primary Examiner: Alan P. Douglas
Attorney: John W. Malley
Application Number: 5/720,655
Classifications
Current U.S. Class: Molding Or Casting (D15/135)
International Classification: D1509;