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:
Feb. 10, 1976
Filed:
Oct. 24, 1974
Applicant:
Inventor:
Shoichi Tanaka, Shizuoka, JA;
Assignee:
Toshiba Kikai Kabushiki Kaisha, Tokyo, JA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29D / ; B29D / ;
U.S. Cl.
CPC ...
264102 ; 264 85 ; 264328 ; 264329 ;
Abstract
In a method for injection moulding of the type wherein gas or vapor evolved from the resin being moulded is vent through a vent opening provided for a heated cylinder at an intermediate point thereof, the vent opening is maintained at a reduced pressure during metering and a small quantity of vaporizable liquid is admitted into the vent opening during injection for increasing the pressure therein.