Patent information:

Patent:Utility 1,693,429
Patented:November 27, 1928
Applied:July 2, 1926
Title:Method of Casting
Description:Manufacturing method to cast bushings with a hollow core
Category:Manufacturing
Assigned to:The Ohio Brass Co.

Patentee Information:

AUSTIN, Arthur O. Barberton, OH

Class and subclass information:

Class:264PLASTIC AND NONMETALLIC ARTICLE SHAPING OR TREATING: PROCESSES
Subclass:69TREATMENT OF MATERIAL BY VIBRATING, JARRING, OR AGITATING DURING SHAPING;
Class:264PLASTIC AND NONMETALLIC ARTICLE SHAPING OR TREATING: PROCESSES
Subclass:86REMOVAL OF LIQUID COMPONENT OR CARRIER THROUGH POROUS MOLD SURFACE;
Class:264PLASTIC AND NONMETALLIC ARTICLE SHAPING OR TREATING: PROCESSES
Subclass:87REMOVAL OF LIQUID COMPONENT OR CARRIER THROUGH POROUS MOLD SURFACE By direct application of vacuum or pneumatic pressure;
Class:264PLASTIC AND NONMETALLIC ARTICLE SHAPING OR TREATING: PROCESSES
Subclass:302MECHANICAL SHAPING OR MOLDING TO FORM OR REFORM SHAPED ARTICLE Shaping against forming surface (e.g., casting, die shaping, etc.) Accretion from bulk Slush casting type;
Class:425PLASTIC ARTICLE OR EARTHENWARE SHAPING OR TREATING: APPARATUS
Subclass:562FEMALE MOLD AND CHARGER TO SUPPLY FLUENT STOCK UNDER PRESSURE THERETO IN FLUID-TIGHT RELATIONSHIP (E.G., INJECTION MOLD, ETC.) With means between charger and mold to cut off flow of fluent stock (e.g., needle valve, baffle, etc.);

Known specimens:

None known

Drawings:

Drawing page 1

Page 1