Patents by Inventor Ronald E. Mac Donald

Ronald E. Mac Donald 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).

  • Manual sanding device
    Patent number: 5720654
    Abstract: A hand sanding block for use with an endless abrasive belt of the type normally used with power sanders. The block has a body and a slidable nose which is biased outwardly. A pin limits the outward travel of the nose relative to the body. A detent is provided so the nose may be temporarily secured in a retracted position for ease of loading and unloading sanding belts.
    Type: Grant
    Filed: November 15, 1996
    Date of Patent: February 24, 1998
    Inventor: Ronald E. Mac Donald