Patents by Inventor Fred W. Lurwig

Fred W. Lurwig 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).

  • Patent number: 5626007
    Abstract: A rotary cutter apparatus is provided for shredding vegetation in order to generally reduce the size of cut vegetation and more evenly distribute the vegetation once thus cut. Counterrotating, coaxial blade assemblies are provided. A multiple gear drive shaft has one drive gear for engaging and driving one blade assembly and another drive gear for engaging and driving the other blade assembly. The multiple gear drive shaft also has an interchangeability characteristic which determines the respective rotational directions of the counterrotating blade assemblies. Enhanced gear and bearing lubrication is also achieved.
    Type: Grant
    Filed: September 11, 1995
    Date of Patent: May 6, 1997
    Assignee: Allied Products Corporation
    Inventors: Jackie L. Harrington, Fred W. Lurwig
  • Patent number: 5450714
    Abstract: A rotary cutter apparatus is provided for shredding coarse vegetation in order to generally reduce the size of cut vegetation and more evenly distribute the vegetation once thus cut. Counterrotating, coaxial blade assemblies are provided. One blade assembly is driven by a central shaft rotatably mounted through a drive barrel, which drives the other blade assembly. The central shaft can be mounted by only two bearing assemblies. Easy assembly and disassembly arrangements are also provided. The rotary cutter apparatus is characterized by simplified and cost-reduced manufacturing and by enhanced serviceability.
    Type: Grant
    Filed: October 7, 1994
    Date of Patent: September 19, 1995
    Assignee: Allied Products Corporation
    Inventor: Fred W. Lurwig