Patent information:

Patent:Utility 3,155,479
Patented:November 3, 1964
Applied:May 25, 1960
Title:Centrifugal Molds and Method of Forming Hollow Articles
Description:Glass TV Tube Molds
Category:OI
Assigned to:Owens-Illinois Glass Co.

Patentee Information:

ZIMMERMAN, George Muncie, IN

Class and subclass information:

Class:65GLASS MANUFACTURING
Subclass:70PROCESSES Forming product or preform from molten glass Initial forming of hollow product or preform in mold cavity With severing of formed product;
Class:65GLASS MANUFACTURING
Subclass:71PROCESSES Forming product or preform from molten glass Initial forming of hollow product or preform in mold cavity Spreading of molten glass by rotation;
Class:65GLASS MANUFACTURING
Subclass:302ARTICLE FORMING MEANS UTILIZING MOLD MOTION (E.G., CENTRIFUGAL CASTING);
Class:249STATIC MOLDS
Subclass:137CONTAINER-TYPE MOLDING DEVICE Having means enabling rotation of molding device, e.g., rocker, pivot, etc.;
Class:264PLASTIC AND NONMETALLIC ARTICLE SHAPING OR TREATING: PROCESSES
Subclass:311MECHANICAL SHAPING OR MOLDING TO FORM OR REFORM SHAPED ARTICLE Shaping against forming surface (e.g., casting, die shaping, etc.) By rotation of material or material shaping member Utilizing centrifugal force;
Class:425PLASTIC ARTICLE OR EARTHENWARE SHAPING OR TREATING: APPARATUS
Subclass:289PREFORM SEVERING MEANS;
Class:425PLASTIC ARTICLE OR EARTHENWARE SHAPING OR TREATING: APPARATUS
Subclass:425FEMALE MOLD INCLUDING TAMPING MEANS OR MEANS UTILIZING MOLD MOTION TO DISTRIBUTE OR COMPACT STOCK THEREIN;

Known specimens:

None known

Drawings:

Drawing page 1

Page 1

Drawing page 2

Page 2