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:
Jul. 19, 2011
Filed:
Mar. 31, 2009
Applicants:
Christian Hahn, Uebersaxen, AT;
Rolf Erhardt, Buchs, CH;
Inventors:
Christian Hahn, Uebersaxen, AT;
Rolf Erhardt, Buchs, CH;
Assignee:
Hilti Aktiengesellschaft, Schaan, LI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B25C 1/12 (2006.01);
U.S. Cl.
CPC ...
Abstract
A combustion-engined setting tool () for driving fastening elements in a workpiece includes a combustion chamber (), a drive piston () displaceable in a piston guide () and driven by expanding gases produced in the combustion chamber (), and a device for returning the drive piston () in its initial position as a result of pressure difference between chambers formed on opposite axial sides of the piston head (), and including a pump ().