Patents by Inventor Douglas C. Alcumbrack

Douglas C. Alcumbrack 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).

  • Air lockout device
    Patent number: 5638857
    Abstract: An air lockout device for an air driven fixture. The lockout device includes a body defining a pair of axially offset intersecting bores. The first bore is fitted over a conventional male air fitting and the second bore extends through the body in alignment with the bearing seat of the male air fitting. A conventional padlock is fitted through the second bore and the bearing seat to secure the lockout device in place.
    Type: Grant
    Filed: September 5, 1995
    Date of Patent: June 17, 1997
    Inventor: Douglas C. Alcumbrack