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. 17, 1989
Filed:
Jun. 18, 1987
Michihiro Yokoyama, Anjyo, JP;
Kabushiki Kaisha Yokoyama Seisakusho, Anjo, JP;
Abstract
The present invention discloses a manufacturing process whereby a spur gear is cold-press molded. By means of the invention a pre-punched workpiece is loaded on a counter which is admitted to a bore in a female die having a chamfer at its inlet, pressure is applied on the workpiece through the bore in the female die by means of a punch when pressure is increased from below so as to lift the counter from the counter plate, a primary product is formed by means of causing said workpiece to descend so as to transit the chamfer, extracting said primary product from the female die and reversing its orientation top to bottom, and repeating the identical process once again.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile