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:
Apr. 21, 2009
Filed:
Dec. 10, 2007
Matthias Blessing, Frastanz, AT;
Hans Gschwend, Buchs, CH;
Ulrich Schiestl, Feldkirch, AT;
Robert Spasov, Schaan, LI;
Matthias Blessing, Frastanz, AT;
Hans Gschwend, Buchs, CH;
Ulrich Schiestl, Feldkirch, AT;
Robert Spasov, Schaan, LI;
Hilti Aktiengesellschaft, Schaan, LI;
Abstract
A hand-held drive-in tool for driving fastening elements () in a workpiece (U) includes a drive-in ram () displaceable in a guide (), a spring () for driving the drive-in ram (), a tensioning device () for loading the driving spring (), a locking device () for retaining, in its locking position (), the driving spring () in its loaded position thereof (), and a sliding nut () supported on a threaded spindle (), which is rotatable by the motor () of the tensioning device (), without a possibility of rotation thereabout but with a possibility of an axial displacement therealong, the sliding nut () being axially displaceable, upon actuation of the motor () of the tensioning device () by a control unit () of the drive-in tool (), from the first end position () to the second end position () for displacing the driving spring () into the loading position () of the driving spring (), and being subsequently displaceable from its second end position () into the first end position () to provide for displacement of the driving spring () to its release position.