Patents by Inventor MARCELL WELTERS

MARCELL WELTERS has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Lifting-device brake system
    Patent number: 9796573
    Abstract: A lifting-device brake system includes at least one brake assembly configured to be activated by a spring force. The at least one brake assembly is configured to achieve a braking effect. At least one piston/cylinder assembly is configured to be actuated by a hydraulic or pneumatic pressure via which the braking effect achieved by the at least one brake assembly can be reduced by at least partially overcoming the spring force. A hydraulic or pneumatic assembly is configured to provide the hydraulic or pneumatic pressure to actuate the at least one piston/cylinder assembly. The hydraulic or pneumatic assembly comprises an apparatus configured to maintain the hydraulic or pneumatic pressure applied to the at least one piston/cylinder assembly.
    Type: Grant
    Filed: July 2, 2014
    Date of Patent: October 24, 2017
    Assignee: MHWIRTH GMBH
    Inventors: Jochen Kueppers, Roland Moll, Marcell Welters
  • LIFTING-DEVICE BRAKE SYSTEM
    Publication number: 20160167937
    Abstract: A lifting-device brake system includes at least one brake assembly configured to be activated by a spring force. The at least one brake assembly is configured to achieve a braking effect. At least one piston/cylinder assembly is configured to be actuated by a hydraulic or pneumatic pressure via which the braking effect achieved by the at least one brake assembly can be reduced by at least partially overcoming the spring force. A hydraulic or pneumatic assembly is configured to provide the hydraulic or pneumatic pressure to actuate the at least one piston/cylinder assembly. The hydraulic or pneumatic assembly comprises an apparatus configured to maintain the hydraulic or pneumatic pressure applied to the at least one piston/cylinder assembly.
    Type: Application
    Filed: July 2, 2014
    Publication date: June 16, 2016
    Applicant: MHWIRTH GMBH
    Inventors: JOCHEN KUEPPERS, ROLAND MOLL, MARCELL WELTERS