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:
Jan. 03, 2023
Filed:
Jun. 06, 2018
Applicant:
Plasser & Theurer Export Von Bahnbaumaschinen Gesellschaft Mbh, Vienna, AT;
Inventor:
Thomas Philipp, Leonding, AT;
Assignee:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E01B 27/16 (2006.01);
U.S. Cl.
CPC ...
E01B 27/16 (2013.01); E01B 2203/12 (2013.01);
Abstract
A method performs compaction of a track ballast bed by use of a tamping unit having two oppositely positioned tamping tools which, actuated with a vibration, are lowered into the track ballast bed during a tamping operation and moved towards one another with a squeezing motion. In this, it is provided that at least one variable vibration parameter is specified in dependence on a duration of penetration into the track ballast bed, until a required penetration depth of the tamping tools has been reached.