Patents by Inventor Richard N. Wurzbach

Richard N. Wurzbach 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 of evaluating grease and extrusion die for the method
    Patent number: 8549930
    Abstract: A method of measuring a characteristic property of grease includes pushing a constant volumetric flow of grease through an extrusion die and measuring the force needed to extrude the grease from the die. The die includes a flow restriction that increases the force required to flow the grease.
    Type: Grant
    Filed: May 15, 2009
    Date of Patent: October 8, 2013
    Inventors: Richard N. Wurzbach, Andreas Retzlaff
  • Method of Evaluating Grease amd Extrusion Die for the Method
    Publication number: 20120055266
    Abstract: A method of measuring a characteristic property of grease includes pushing a constant volumetric flow of grease through an extrusion die and measuring the force needed to extrude the grease from the die. The die includes a flow restriction that increases the force required to flow the grease.
    Type: Application
    Filed: May 15, 2009
    Publication date: March 8, 2012
    Inventors: Richard N. Wurzbach, Andreas Retzlaff
  • Grease sampling kit, grease sampling devices made from the kit, and related methods
    Patent number: 7984661
    Abstract: A kit of component parts for forming at least first and second grease sampling devices includes a number of housings, piston bodies, and piston shafts. A first grease sampling device has a piston movable in the barrel and vent holes that resists the buildup of back pressure when the device is filled with a grease sample. A second grease sampling device includes a push rod extending from the piston that enables a representative grease sample to be obtained from a bearing, gear or other lubricated part that is not easily accessible.
    Type: Grant
    Filed: April 23, 2008
    Date of Patent: July 26, 2011
    Inventor: Richard N. Wurzbach
  • Grease Sampling Kit, Grease Sampling Devices Made from the Kit, and Related Methods
    Publication number: 20090183580
    Abstract: A kit of component parts for forming at least first and second grease sampling devices includes a number of housings, piston bodies, and piston shafts. A first grease sampling device has a piston movable in the barrel and vent holes that resists the buildup of back pressure when the device is filled with a grease sample. A second grease sampling device includes a push rod extending from the piston that enables a representative grease sample to be obtained from a bearing, gear or other lubricated part that is not easily accessible.
    Type: Application
    Filed: April 23, 2008
    Publication date: July 23, 2009
    Inventor: Richard N. Wurzbach