Patents by Inventor Wilhelmus J. C. Heemskerk

Wilhelmus J. C. Heemskerk 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).

  • Method for causing sitting poultry to stand up and apparatus for carrying out this method
    Patent number: 5088959
    Abstract: For causing sitting poultry to stand up its abdomen is brought into contact with a liquid or is a gas stream blown against the abdomen. An apparatus for carrying out this method comprises a spraying unit for the liquid or a blowing nozzle for the gas stream.
    Type: Grant
    Filed: July 10, 1989
    Date of Patent: February 18, 1992
    Assignee: Meyn Machinefabriek B.V.
    Inventor: Wilhelmus J. C. Heemskerk