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:
Apr. 21, 2015
Filed:
Sep. 03, 2013
Applicant:
Bochumer Eisenhütte Heintzmann Gmbh & Co. KG, Bochum, DE;
Inventor:
Rudi Podjadtke, Herne, DE;
Assignee:
Bochumer Eisenhütte Heintzmann GmbH & Co. KG, Bochum, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E04C 5/06 (2006.01); E21D 11/10 (2006.01); E04C 3/08 (2006.01); E04C 3/02 (2006.01); E04C 3/30 (2006.01); E04C 3/04 (2006.01);
U.S. Cl.
CPC ...
E04C 5/06 (2013.01); E04C 3/02 (2013.01); E04C 3/30 (2013.01); E21D 11/107 (2013.01); E04C 3/08 (2013.01); E04C 2003/0413 (2013.01); E04C 2003/0469 (2013.01); E04C 2003/0495 (2013.01);
Abstract
A lattice girder for support of a tunnel structure includes coupling elements arranged on ends of the lattice girder. Each coupling element has two sheet-metal strips having each an end formed with a loop. Extending between the coupling elements in a longitudinal direction of the lattice girder are two lower bars and an upper bar arranged to define corners of a triangle in cross section. A framework made of single braces connects the lower bars with the upper bar. Connectors are received in the loops of the sheet-metal strips.