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. 01, 2015
Filed:
Apr. 19, 2010
Ferdinand Kristen, Gilching, DE;
Stefan Hammerstingl, Munich, DE;
Erwin Manschitz, Germering, DE;
Markus Hartmann, Mauerstetten, DE;
Ferdinand Kristen, Gilching, DE;
Stefan Hammerstingl, Munich, DE;
Erwin Manschitz, Germering, DE;
Markus Hartmann, Mauerstetten, DE;
Hilti Aktiengesellschaft, Schaan, LI;
Abstract
A pneumatic striking mechanism includes a guide cylinder in which a freely moving piston and an exciter piston are arranged movably along a striking axis. The guide cylinder has a plastic. The striking mechanism includes a pneumatic chamber sealed off by the guide cylinder, by the freely moving piston and by the exciter piston, as well as a drive for periodically moving the exciter piston, as a result of which the freely moving piston is excited to execute a periodical movement between the striking surface and the exciter piston.