Patents by Inventor Jos Dottermans

Jos Dottermans 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 filter assembly and method of putting filter element in same
    Patent number: 4950317
    Abstract: A two-piece, snap-together air filter support arrangement is provided for suspending an air filter element in a filter housing. The air filter support arrangement includes an upper-pot member, an under-pot member and an engagement mechanism for releasably engaging the upper-pot member, to the under-pot member. In use, an air filter element is disposed in an annular passage between the upper-pot member and the under-pot member. The air filter support arrangement is secured within the filter housing, during use.
    Type: Grant
    Filed: January 9, 1989
    Date of Patent: August 21, 1990
    Assignee: Donaldson Company, Inc.
    Inventor: Jos Dottermans