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:
Aug. 07, 2001
Filed:
Mar. 16, 1999
Applicant:
Inventors:
Alain Gauthier, Saint Jean de Muzols, FR;
Jean-Paul Barthomeuf, Bourg de Peage, FR;
Assignee:
Societe de Prospection et d'Inventions Techniques Spit, Bourg-les-Valence, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16B 1/306 ;
U.S. Cl.
CPC ...
F16B 1/306 ;
Abstract
An anchor bolt comprises a fixing rod (,), an expandable sleeve (,) and an expansion core (,) integral in translation with the fixing rod (,), intended to expand the sleeve (,). The sleeve (,) has a plurality of slots (,′) widening towards the free end of the sleeve (,), forming a plurality of expansion teeth (,) cooperating with the expansion core (,). The inner wall of the edge of the teeth (,) is blunt and the thickness of each tooth is bevelled to decrease towards the free end of the sleeve.