Patents by Inventor Lloyd M. Wetzig

Lloyd M. Wetzig 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).

  • Stave machine and method of stave manufacture
    Patent number: 5396939
    Abstract: A machine for making staves includes a first section and a second section with each section including components for cutting one side of a blank in a manner inclined to the blank's lengthwise axis. Conveyors on each section are equipped with lugs for propelling the blanks with each lug having a foot to support a lug engaged end of the blank against laterally applied loads imparted by wheel members. Additionally supporting each of the conveyed blanks on each section is a fence on each section with the lug foot and the fence serving to maintain the blank in a skewed position to present a displaced side edge to a cutter head. The fence on the second section additionally supports the blank against lateral loads applied in an opposite direction by wheels biasing the blank into fence and lug engagement to skew in an opposition direction. A cutter head on the second section of the machine completes shaping of the blank by cutting a second side edge inclined to the stave's lengthwise axis.
    Type: Grant
    Filed: September 21, 1993
    Date of Patent: March 14, 1995
    Inventors: John J. Dean, Lloyd M. Wetzig
  • Fuel pellets and process for producing fuel pellets from botanical materials
    Patent number: 4211740
    Abstract: A process for pelletizing tree bark and other botanical material for use as an industrial fuel. A dryer burning fines from the final product is used to heat bark or other botanical material which is typically a waste product from lumbering or agricultural production. Once dried, the material is finely ground, preheated and forced through a pelletizing mill to create a pelletized product having a diameter of approximately 0.635 cm. The pellets are then cooled and leave the process. Several pelletizing mills are disclosed which are situated to trap the dried material against at least one die such that there will be a continuous, positive feed of material into the die. The resulting product may be substituted for coal as a heating source.
    Type: Grant
    Filed: February 22, 1977
    Date of Patent: July 8, 1980
    Inventors: John J. Dean, Lloyd M. Wetzig
  • Vehicle air and electrical connector
    Patent number: 4183599
    Abstract: A coupling for air and electrical connections between a vehicle and a trailer having two telescopically connected cupped sections with concentric sealed air passages when the sections are interconnected. Both the electrical and pneumatic connections are made simultaneously with the telescopic interconnection.
    Type: Grant
    Filed: March 23, 1978
    Date of Patent: January 15, 1980
    Inventor: Lloyd M. Wetzig