Patent information:

Patent:Utility 2,915,801
Patented:December 8, 1959
Applied:December 5, 1957
Title:Apparatus for Forming Plastic Clay Bodies
Description:Mold and pressing operation to eliminate the need to plunge and trim a suspension disk
Category:Mold
Assigned to:McGraw-Edison Co.

Patentee Information:

HARRY, William R. Hartland, WI

Class and subclass information:

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;
Class:264PLASTIC AND NONMETALLIC ARTICLE SHAPING OR TREATING: PROCESSES
Subclass:325MECHANICAL SHAPING OR MOLDING TO FORM OR REFORM SHAPED ARTICLE Shaping against forming surface (e.g., casting, die shaping, etc.) Applying heat or pressure Reshaping solid work or introducing solid work into mold cavity Utilizing closed mold cavity;
Class:264PLASTIC AND NONMETALLIC ARTICLE SHAPING OR TREATING: PROCESSES
Subclass:500DIRECT APPLICATION OF FLUID PRESSURE DIFFERENTIAL TO PERMANENTLY SHAPE, DISTORT, OR SUSTAIN WORK;
Class:425PLASTIC ARTICLE OR EARTHENWARE SHAPING OR TREATING: APPARATUS
Subclass:436RSHAPING SURFACE INCLUDING MEANS TO RELEASE OR REMOVE PRODUCT FROM SHAPING SURFACE;
Class:425PLASTIC ARTICLE OR EARTHENWARE SHAPING OR TREATING: APPARATUS
Subclass:84WITH FORAMINOUS OR ABSORBENT MEANS FOR REMOVAL OF VEHICLE OR COMPONENT IN LIQUID FORM DURING OR AFTER SHAPING;

Known specimens:

None known

Drawings:

Drawing page 1

Page 1

Drawing page 2

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