Patents by Inventor Roy Oliver Erickson, deceased

Roy Oliver Erickson, deceased 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).

  • Filter for vacuum cleaner
    Patent number: 6162287
    Abstract: A vacuum cleaner assembly (10) is disclosed that includes a main housing (12) having an inlet (14) and an outlet (16). A motor (17a) is disposed within the main housing (12) between the inlet (14) and the outlet (16) for providing motive force to a cooling fan (17b), a blower (17c), and a separator (22). The cooling fan (17b) is mounted within the main housing (12) above the motor (17a) to circulate cooling air around the motor (17a). The blower (17c) is mounted within the main housing (12) below the motor (17a) for drawing air into the inlet (14) and exhausting air outwardly through the outlet (16). The separator (22) is mounted below the blower (17c) for circulating the air and water bath (20) within a water bath pan (36) and providing, in combination with the water bath (20), a primary filter for filtering the air prior to exhausting the air outwardly through the outlet (16).
    Type: Grant
    Filed: April 23, 1999
    Date of Patent: December 19, 2000
    Assignee: Rexair, Inc.
    Inventors: Dean Rohn, John J. Alberts, III, Alan Joseph Krebs, Roy Oliver Erickson, deceased