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:
May. 29, 2018
Filed:
Jun. 23, 2016
Kazutomi Oka, Hiratsuka, JP;
Kazutomi Oka, Hiratsuka, JP;
Other;
Abstract
Internally threaded deviceincludes a main bodyhaving an internal thread portionand a ring-like seat portiondisposed between the main bodyand a member to be fastened. The main bodyhas a convex portionand the ring-like seat portionhas a concave portion, the convex portionand the concave portionhave a spherical zone with a center on an axis line. The radius of the spherical shape is set to allow the convex portionand the concave portionto slide earlier than the internal thread portionwhen a load is applied between the main partand the memberin a direction crossing the axial line L. Externally threaded deviceand washer devicein similar structures prevent loosening of the engaged portion easily.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile