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:
Sep. 18, 1984
Filed:
Mar. 25, 1983
Kabushiki Kaisha Kobe Seiko Sho, Kobe, JP;
Abstract
A method of manufacturing a blank for an oil drilling stabilizer, which includes the steps of hot-working a stock of non-magnetic steel into a rod-like shape work item with a bulging large-diameter portion at a median point between opposite ends thereof; subjecting the resulting rod-like work item to an ordinary heat treatment solution and a machining operation to obtain a semi-finished work item of a shape substantially conforming with the desired shape; and then subjecting the semi-finished work item to cold axial compressive working in a die cavity of a complementary shape and within a work hardening temperature range.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile