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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.:

US 11091137 B1

PDFFull Text
Date of Patent:
Aug. 17, 2021

Filed:

May. 07, 2018

Pneumatic braking device

Applicant:

Knorr-bremse Systeme Fuer Nutzfahrzeuge Gmbh, Munich, DE;

Inventors:

Karsten Schnittger, Munich, DE;

Christian Kuhlen, Aschheim, DE;

Fabian Griesser, Munich, DE;

Assignee:

KNORR-BREMSE Systeme fuer Nutzfahrzeuge GmbH, Munich, DE;

Attorney:

Crowell & Moring LLP

Primary Examiner:

Nicholas J Lane

Int. Cl.
CPC ...
B60T 7/20 (2006.01); B60T 13/26 (2006.01); B60T 11/32 (2006.01); B60T 13/22 (2006.01); B60T 13/38 (2006.01); B60T 15/04 (2006.01); B60T 13/66 (2006.01); B60T 13/68 (2006.01); B60T 17/00 (2006.01);
U.S. Cl.
CPC ...
B60T 13/263 (2013.01); B60T 11/326 (2013.01); B60T 13/22 (2013.01); B60T 13/261 (2013.01); B60T 13/385 (2013.01); B60T 13/662 (2013.01); B60T 13/683 (2013.01); B60T 15/041 (2013.01); B60T 17/004 (2013.01); B60T 2270/403 (2013.01);
Abstract

A pneumatic braking device for a utility vehicle includes at least one pneumatically controllable spring accumulator for a parking brake of the utility vehicle and an electronic parking brake device. The electronic parking brake device has at least one electronic control unit, at least one bistable valve unit, at least one first valve unit by which a parking brake of a trailer of the utility vehicle can be deactivated when activating the parking brake of the utility vehicle, at least one second valve device which can be connected in such a way that when there is a decrease in the system pressure for supplying the parking brake of the trailer, the parking brake of the trailer can be activated, and a traction vehicle protection valve.

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