Patents by Inventor Patrick Koetzel

Patrick Koetzel 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).

  • Publication number: 20020134079
    Abstract: Hydraulic circuit for actuating multiple hydraulic receivers comprising: a multiple distribution device (1) with several valves (22-24) having functions for detecting the highest pressure load, anti-saturation and flow-splitting irrespective of the load (DDIC); a specific valve (21) for a specific receiver (12) being a major consumer of the flow from a hydraulic source (S), this receiver (12) also being of the DDIC type and connected in series with the other distributors; and a control circuit between the source (S) and the control port of the specific valve (21), having a pressure reducer (14) to lower the pressure of the fluid issuing from the source until a control value is reached, said pressure reducer (14) being adjustable so that the operation speed of said specific receiver can be pre-set.
    Type: Application
    Filed: March 26, 2001
    Publication date: September 26, 2002
    Inventors: Phillipe Fillon, Patrick Koetzel