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:
Oct. 16, 2018
Filed:
Mar. 31, 2015
Applicant:
Hilti Aktiengesellschaft, Schaan, LI;
Inventors:
Matteo Spampatti, Buchs, CH;
Huu Toan Nguyen, Wasserburg, DE;
Assignee:
Hilti Aktiengesellschaft, Schaan, LI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16B 39/02 (2006.01); F16B 39/22 (2006.01);
U.S. Cl.
CPC ...
F16B 39/225 (2013.01);
Abstract
A screw, especially a concrete screw, having a shank with a front end that is to be inserted into a hole drilled into a substrate, and a rear end as well as at least one thread arranged on the shank. It is provided that the screw has a squeezing piston that is situated in front of the front end of the shank, whereby a compound reservoir is provided between the squeezing piston and the shank.