Patent information:

Patent:Utility 1,717,996
Patented:June 18, 1929
Applied:July 22, 1924
Title:Means for and Method of Making Insulators
Description:Press method of molding porcelain insulator with vibration improves quality (Hewlett)
Category:Press
Assigned to:Locke Insulator Corp.

Patentee Information:

MOORE, JR., Stewart L. Victor, NY

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: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:335MECHANICAL SHAPING OR MOLDING TO FORM OR REFORM SHAPED ARTICLE Shaping against forming surface (e.g., casting, die shaping, etc.) Article or material ejecting, core or mold stripping or separating By direct fluid pressure or pressure differential;
Class:264PLASTIC AND NONMETALLIC ARTICLE SHAPING OR TREATING: PROCESSES
Subclass:DIG78Processes of molding using vacuum;
Class:425PLASTIC ARTICLE OR EARTHENWARE SHAPING OR TREATING: APPARATUS
Subclass:352FEMALE MOLD AND OPPOSED COAXIAL DYNAMIC PRESS MEMBERS;
Class:425PLASTIC ARTICLE OR EARTHENWARE SHAPING OR TREATING: APPARATUS
Subclass:405.1MEANS TO CREATE A VACUUM OR APPLY FLUID PRESSURE WITHIN A PRESS FORMING MOLD;

Known specimens:

None known

Drawings:

Drawing page 1

Page 1