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:
Aug. 30, 2011
Filed:
Jun. 03, 2010
Harry-werner Kraus, München, DE;
Armin Ostler, München, DE;
Erich Fuderer, Fürstenfeldbruck, DE;
Michael Mathieu, Puchheim, DE;
Christian Ebner, Augsburg, DE;
Harry-Werner Kraus, München, DE;
Armin Ostler, München, DE;
Erich Fuderer, Fürstenfeldbruck, DE;
Michael Mathieu, Puchheim, DE;
Christian Ebner, Augsburg, DE;
Knorr-Bremse Systeme fur Schienenfahrzeuge GmbH, Munich, DE;
Abstract
The invention relates to a combination cylinder including a service brake cylinder as an active service brake with at least one pressure-medium-actuated service brake piston which actuates a brake mechanism via a service brake piston rod, and a spring store brake cylinder as a passive parking brake with a spring store brake piston which is actuated by pressure medium counter to the action of at least one store spring, with the spring store brake piston transmitting the force of the at least one store spring to the service brake piston rod by a force-transmitting gearing in the parking braking situation. The invention provides for the gearing to be designed such that the movements of the spring store brake piston and of the service brake piston rod are coaxial and the force transmission ratio becomes greater with progressive stroke of the spring store brake piston.