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.

Date of Patent:
Aug. 23, 2016

Filed:

Jan. 26, 2015
Applicant:

Wirtgen Gmbh, Windhagen, DE;

Inventors:

Dirk Franzmann, Hennef, DE;

Christian Berning, Brühl, DE;

Herbert Ley, St. Katharinen, DE;

Cyrus Barimani, Königswinter, DE;

Günter Hähn, Königswinter, DE;

Assignee:

Wirtgen GmbH, , DE;

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E01C 23/088 (2006.01); E01C 23/12 (2006.01);
U.S. Cl.
CPC ...
E01C 23/088 (2013.01); E01C 23/127 (2013.01);
Abstract

A self-propelling construction machine has a machine frame, an operating drum and a drum housing enclosing the operating drum. The drum housing is closed off by a front and/or rear sealing element and/or lateral sealing element. The construction machine has a mechanism for raising and lowering the at least one sealing element. A measuring unit is configured so that the measuring unit measures the forces acting on the sealing element when the sealing element encounters an obstacle. A control unit generates a control signal for raising the sealing element when the force measured by the measuring unit is larger than a predetermined limit value, so that the sealing element is raised.


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