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:
Nov. 09, 2004
Filed:
May. 12, 2003
Josef Theurer, Vienna, AT;
Friedrich Peitl, Linz, AT;
Abstract
Adaptation to varying distances between successive ties is facilitated with a ballast tamping unit for tamping ballast under successive ties of a railroad track, which comprises a frame extending in a longitudinal direction, and tamping tool arms mounted on the frame for pivoting about an axis extending perpendicularly to the longitudinal direction, the tamping tool arms having at least one recess at a lower end thereof for receiving and affixing a tamping pick arranged to be immersed in the ballast between two adjacent ties, and at least one of the tamping tool arms having two such recesses arranged successively in the longitudinal direction for selectively receiving and affixing the tamping pick. A reciprocating drive is connected to an upper end of each tamping tool arm for pivoting the tamping tool arm about the axis in the longitudinal direction.