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:
Oct. 06, 2020
Filed:
Aug. 22, 2017
Maurer Engineering Gmbh, Munich, DE;
Daniel Rill, Munich, DE;
MAURER ENGINEERING GMBH, Munich, DE;
Abstract
A bridging device for a construction joint between a first construction part and a second construction part with several lamellae and at least one hydraulic control device for controlling the gap width between the lamellae. The hydraulic control device has double-acting hydraulic cylinders each with a movable piston and a piston rod arranged on the piston, each hydraulic cylinder being arranged on a lamella. Each piston rod is connected to a different lamella, wherein the piston defines a first working volume and a second working volume of the corresponding hydraulic cylinder. The invention is wherein the hydraulic control device comprises at least three double-acting hydraulic cylinders connected to each other by a hydraulic connection whereby the first working volume of each hydraulic cylinder is hydraulically connected to the second working volume of another hydraulic cylinder so as to form a hydraulic loop between the at least three hydraulic cylinders.