Patents by Inventor Peter Eichelhardt

Peter Eichelhardt 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).

  • Method for regulating the speed of a clamping and lifting apparatus
    Patent number: 9696733
    Abstract: A method for regulating the speed of a clamping and lifting device (1) with at least one guide cylinder (2). A hydraulic fluid can flow in and out through in each case one opening in at least two cylinder chambers of the at least one guide cylinder (2) via at least one pump device and via at least one valve device per cylinder chamber for lifting and lowering loads (16). The degree of opening of the valve of the at least one valve device in each case can be changed as a function of the working direction of the device (1), a setpoint speed (10) and the current speed (11) of the at least one guide cylinder (2).
    Type: Grant
    Filed: April 25, 2014
    Date of Patent: July 4, 2017
    Assignee: SIEMAG TECBERG GmbH
    Inventors: Peter Eichelhardt, Viktor Refenius, Nico Stadtbaeumer
  • Method for regulating the speed of a clamping and lifting apparatus
    Publication number: 20160083227
    Abstract: A method for regulating the speed of a clamping and lifting device (1) with at least one guide cylinder (2). A hydraulic fluid can flow in and out through in each case one opening in at least two cylinder chambers of the at least one guide cylinder (2) via at least one pump device and via at least one valve device per cylinder chamber for lifting and lowering loads (16). The degree of opening of the valve of the at least one valve device in each case can be changed as a function of the working direction of the device (1), a setpoint speed (10) and the current speed (11) of the at least one guide cylinder (2).
    Type: Application
    Filed: April 26, 2014
    Publication date: March 24, 2016
    Applicant: SIEMAG TECBERG GmbH
    Inventors: Peter Eichelhardt, Viktor Refenius, Nico Stadtbaeumer