Patents by Inventor Roy J. Krahn

Roy J. Krahn 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).

  • Quick disconnect for aerosol spray can
    Patent number: 4928859
    Abstract: A quick connect/disconnect assembly (10) comprises a male insert (50) secured to one end of a hose assembly (14), a separate female adapter (52) for attachment to an aerosol can (12), and dual seal arrangement (68, 70) within the adapter, and a releaseable latch (78) for positively interconnecting the insert and adapter. Upon insertion of the male insert (50), leakage of any fluid is contained within the female adapter (52).
    Type: Grant
    Filed: October 28, 1988
    Date of Patent: May 29, 1990
    Inventors: Roy J. Krahn, Brian J. Blenkush
  • Adjustable nozzle
    Patent number: 4850538
    Abstract: A nozzle for spraying rust proofing material onto automobile panels including an elongate inner tube having an inlet end and axially spaced radially extending slots positioned to provide portions of the slots entirely encircling the tube.
    Type: Grant
    Filed: October 19, 1987
    Date of Patent: July 25, 1989
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Roy J. Krahn