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. 21, 2025
Filed:
Oct. 26, 2020
Sandvik Mining and Construction Tools Ab, Sandviken, SE;
Sandvik Mining and Construction Australia Pty Ltd, Milton, AU;
Steven Weaver, Heatherbrae, AU;
Mieczyslaw Rataj, Heatherbrae, AU;
Osvaldo Vallati, Heatherbrae, AU;
Sandvik Mining and Construction Tools AB, Sandviken, SE;
Sandvik Mining and Construction Australia Pty Ltd, Milton, AU;
Abstract
A rotation indication device for a rock bolt including a central rod with a threaded trailing portion. The rotation indication device includes a blind nut having a threaded central recess for engaging the threaded trailing portion and a visual indication means provided at a bottom portion of the central recess and configured such that upon movement of the threaded trailing portion of the central rod into the bottom portion of the central recess, the central rod forces at least a portion of the visual indication means to move through a passage in the blind nut between the bottom portion of the central recess and the outside of the blind nut.