Patents by Inventor Frank M. Amundson

Frank M. Amundson 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: 4663995
    Abstract: A device for removing material, preferably roofing material, consisting of a baseplate; a shaft member secured at one end to a guide handle and at the other end to the baseplate; a lifting plate including a blade-like leading section and a trailing section; an opening located in the trailing section of the lifting plate to permit the lower end of the shaft member to pass therethrough; a fulcrum means operatively connected to the baseplate and the lifting plate; an actuating means located on a guide handle and connected to a drive means; and a drive means to depress the trailing section of the lifting plate thereby rotating the lifting plate about the fulcrum means to move the blade-like leading section of the lifting plate into a generally parallel spaced-apart position with respect to the baseplate.
    Type: Grant
    Filed: April 2, 1986
    Date of Patent: May 12, 1987
    Assignee: Femco Machine Co.
    Inventors: Frank M. Amundson, Herbert C. Manners, Paul M. Jeffries