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:
Dec. 03, 1991
Filed:
Sep. 13, 1990
Applicant:
Inventors:
Syed R Hasan, Palatine, IL (US);
Mark A Packard, Rockford, IL (US);
Michael P Ditka, Deerfield, IL (US);
Assignee:
Illinois Tool Works Inc., Glenview, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16B / ;
U.S. Cl.
CPC ...
411439 ; 411447 ; 411451 ;
Abstract
An anchoring device having a head and a shank to be forcibly driven into a hole defined within concrete or is disclosed. The shank has proximal, transitional, and distal portions defining respective axes that do not coincide when the shank is unstressed and further defining proximal and distal elbows. Notches enhancing frictional engagement between the shank and the hole wall are formed along convex surfaces of the elbows, as well as long substantially cylindrical surfaces of the proximal, transitional, and distal portions of the shank.