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:
Aug. 21, 1990
Filed:
Dec. 27, 1988
Applicant:
Inventors:
Assignee:
Polyplastics Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29D / ; B29C / ;
U.S. Cl.
CPC ...
264 25 ; 264293 ;
Abstract
A rack of a thermoplastic resin is produced by heating a rod of a thermoplastic resin so that the temperature of at least the surface of said rod reaches a level within a range expressed by the equation, ##EQU1## (wherein T is a melting point of a resin forming a matrix for said rod), and thereafter forming a rack in one or both surfaces of said rod by a toothed roller and a grooved guide roller which are paired with each other, or a pair of opposed toothed rollers.
Tanimoto, Shigekazu. (1990). Method for manufacturing thermoplastic resin racks (U.S. Patent No. 4950442). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4950442
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile