Patents by Inventor Melvin O. Hild

Melvin O. Hild 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).

  • Sun shield for a hard hat
    Patent number: 4316289
    Abstract: This invention relates to removable hat brims in general, and more specifically to a sunshield specifically designed to be used in the construction trades and adapted to frictionally and resiliently engage a hard hat to provide shade beyond that normally provided by the protective headgear.
    Type: Grant
    Filed: April 7, 1980
    Date of Patent: February 23, 1982
    Inventor: Melvin O. Hild
  • Apparatus for fine grading compacted earth
    Patent number: 4094362
    Abstract: A device for cutting, chipping and scraping compacted earth is disclosed. The apparatus is affixed to a prime mover for rotary engagement with the earth, whereby the compacted earth is selectively loosened and/or moved. The blade design disclosed is particularly useful for close accurate work around concrete forms and the like. Other embodiments are disclosed for large area grading.
    Type: Grant
    Filed: December 6, 1976
    Date of Patent: June 13, 1978
    Inventor: Melvin O. Hild