Patents by Inventor Lester G. Lindell

Lester G. Lindell 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: 5239758
    Abstract: A sawing device is attachable to an electric hand drill. The hand drill can be operated by either alternating current or direct current, using a battery. The battery operated drill eliminates the need for electrical cords, so it can be used anywhere. The saw bar may be made of material such as plastic that requires no lubricating oil, is lighter and less abrasive than conventional metal saw bars. There is also a non-metallic insert that will attach to a metal saw bar. This insert may go into the conventional metal saw bars with the same advantages as above. The hand drill rotation is transferred through a connecting shaft to the sprocket that drives the cutting chain, which travels on a chain bar with a single sprocket.
    Type: Grant
    Filed: April 20, 1992
    Date of Patent: August 31, 1993
    Inventor: Lester G. Lindell