Patents by Inventor Robert S. Kush

Robert S. Kush 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).

  • Bellows type hand-operated air sampling pump
    Patent number: 4858478
    Abstract: A hand-held air sampling pump can be operated with one hand to consistently sample an exact, predetermined volume of air by causing a bellows to compress and then elongate to form a vacuum inside of the bellows to draw an air sample through a detector tube and into the bellows.
    Type: Grant
    Filed: August 16, 1988
    Date of Patent: August 22, 1989
    Assignee: Mine Safety Appliances Company
    Inventors: Robert S. Kush, Clayton J. Bossart