Patents Assigned to Heilmeier & Weinhlein Fabrik fur Oel-Hydraulik GmbH & Co. KG
  • Flow valve
    Patent number: 4503882
    Abstract: A flow valve with a flow passage which exhibits a working flow path (A) and backflow path (R), having a pressure relief valve (18, 20) which consists of a spring-loaded closing device and a valve seat located to shut off the backflow path below a certain pressure limit, and with a back-pressure valve comprising a closing device and a valve seat, this closing device being removable from the valve seat by means of the working pressure, thus clearing the working flow path.
    Type: Grant
    Filed: April 14, 1983
    Date of Patent: March 12, 1985
    Assignee: Heilmeier & Weinhlein Fabrik fur Oel-Hydraulik GmbH & Co. KG
    Inventor: Rudolf Brunner