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. 19, 2010
Filed:
Apr. 11, 2008
Applicants:
Harald Fielitz, Buchs, CH;
Walter Odoni, Planken, LI;
Robert Spasov, Schaan, LI;
Inventors:
Assignee:
Hilti Aktiengesellschaft, Schaan, LI;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B25C 5/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A hand-held drive-in tool for driving fastening elements in a workpiece and including a guide (), a drive-in ram () displaceable in the guide () for driving a fastening element in, a drive-in unit () for driving the drive-in ram () and including at least one first drive spring () and at least one second drive spring () having respectively, opposite first and a second expansion directions (), and a tensioning device for preloading the drive-in ram () and the first drive spring ().