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:
Apr. 07, 2026
Filed:
Jul. 28, 2022
Fci Holdings Delaware, Inc., Wilmington, DE (US);
Anthony Dodds, New South Wales, AU;
FCI Holdings Delaware, LLC, Wilmington, DE (US);
Abstract
A friction bolt () includes a first generally circular tube () having an internal diameter and defining a longitudinal split, the tube being radially expandable. The bolt has a first leading end () for insertion into a borehole (), a second end defining a head (), and a second generally circular tube defining a longitudinal split and having an external diameter which is substantially the same as or larger than the internal diameter of the first generally circular tube. The second tube is located inside the first tube () with an exterior of the second tube in contact with the interior of the first tube (). The friction bolt () is installed in a rock face () using standard friction bolt () installation equipment and methods.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile