The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 18, 2000
Filed:
Nov. 07, 1997
Applicant:
Inventor:
Hisaaki Koseko, Atsugi, JP;
Assignee:
Ricoh Company, Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
B29C / ; B29C / ;
U.S. Cl.
CPC ...
264 401 ; 264-22 ; 2643287 ; 26432816 ; 264336 ;
Abstract
An apparatus and method of producing molded plastic products provides the molded plastic products of high accuracy and with short molding cycle. A resin is placed in a cavity of a mold for forming the product therein. When the resin cools in the cavity of the mold to a temperature lower than the softening temperature of the resin, air gaps are forcibly formed between the resin and the plural cavity pieces, by slidably moving the cavity pieces so as to part the cavity pieces from the resin. The mechanism for forming the air gaps is included as part of the apparatus, and the method includes the step of forceably forming the air gaps.