Patents by Inventor Ralph B. Mack

Ralph B. Mack 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: 4488395
    Abstract: This invention relates to an improved lawn mower construction adapted for cutting vegetation into pieces and delivering the cut vegetation pieces into a disposable flexible air impervious baglike receptacle for disposal of the cut vegetation pieces. The lawn mower includes a housing having a plurality of wheels movably supporting the housing. A prime mover, such as, a gasoline internal combustion engine is mounted on the housing. The prime mover has a drive shaft drivingly connected thereto. A cutting blade is connected to the shaft. The cutting blade is mounted in the housing for cutting vegetation under the housing and throwing the cut vegetation pieces toward the outer periphery of the housing. A blower impeller is mounted on the drive shaft within the housing for blowing air out of the housing. A junction is a part of the housing for receiving air and cut vegetation pieces propelled by the blade and air blown by the impeller for moving the cut vegetation pieces.
    Type: Grant
    Filed: April 28, 1983
    Date of Patent: December 18, 1984
    Inventor: Ralph B. Mack