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:
Nov. 16, 2021
Filed:
Aug. 08, 2019
Masterpiece Hardware Industrial Co., Ltd., Lukang Township, Changhua County, TW;
I-fang Wang, Lukang Township, Changhua County, TW;
I-Fang Wang, Lukang Township, TW;
Masterpiece Hardware Industrial Co., Ltd., Lukang Township, TW;
Other;
Abstract
An expansion screw structure contains an anchor for mating with a screw. The anchor includes a first segment and a second segment which have a central axis, and a shank. The anchor further includes a head which has a slot. The shank includes a first threaded section, multiple cutouts, a decreasingly conical tip, a second threaded section, a slit, a first support foot, a second support foot. The slit has a first part, a second part, and a third part. The second part has a first raised portion, the second part has a second raised portion, and the third part has a connection section and a thin coupling strap. The thin coupling strap has a first thickness, the connection section has a second thickness, and the first thickness of the coupling strap is ⅓ of the second thickness of the connection section.