Patents by Inventor Craig R. Cummins

Craig R. Cummins 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).

  • Patent number: 5109568
    Abstract: A handle assembly for securing a vacuum hose to an intake nozzle of a vacuum cleaner system. A handle housing having first and second mating handle housing sections and a plurality of oppositely facing ridges and oppositely facing grooved portions protruding from inner surfaces of the housing sections is adapted to house a ribbed end portion of a vacuum hose and an elbow section having a shoulder portion protruding therefrom. The ridges and grooved portions are adapted to abuttingly engage the ribbed end portion of the vacuum hose and the shoulder portion of the elbow section respectively when the first and second handle housing sections are matingly engaged, to thereby prevent clockwise or counter-clockwise rotation of the vacuum hose as the handle assembly is articulated into various positions during use. The vacuum hose further includes a relatively smooth inner surface which is operable to slide over a portion of the elbow section housed within the handle assembly housing.
    Type: Grant
    Filed: June 15, 1990
    Date of Patent: May 5, 1992
    Assignee: Rexair, Inc.
    Inventors: Dean R. Rohn, Steven R. Selewski, Stephen J. Wood, Craig R. Cummins
  • Patent number: 5096475
    Abstract: A separator for use in connection with a liquid bath-type vacuum cleaner system. The separator includes an annular, cup-like housing adapted to rotate axially about its vertical axis for generating a centrifugal force to be applied to intake air therein; and a plurality of intake/exhaust slots particulates entrained in the intake air and liquid particulates from a liquid bath to be drawn into an interior area of the housing and coalesce therein, whereby the coalesced particulates are subjected to centrifugal force and are thereby separated from the intake air. The intake/exhaust slots further enable the coalesced particulates to be forcibly expelled from the interior area of the housing therethrough as they are forced radially outwards by the centrifugal force generated by the rapid, axial rotation of the housing.
    Type: Grant
    Filed: August 24, 1990
    Date of Patent: March 17, 1992
    Assignee: Rexair, Inc.
    Inventors: Gary A. Kasper, Roy O. Erickson, Dean R. Rohn, Steven R. Selewski, Craig R. Cummins
  • Patent number: 5090974
    Abstract: A separator for use in connection with a liquid bath type vacuum cleaner system. The separator includes an annular, cup-like housing adapted to rotate axially about its vertical axis for generating a centrifugal force to be applied to intake air therein; a plurality of slots on the housing for allowing dust and dirt particulates entrained in the intake air and liquid particulates from a liquid bath to be drawn into an interior area of the housing and coalesce therein, whereby the coalesced particulates will be subjected to centrifugal force and will thereby be separated from the intake air; and a plurality of exhaust slots for allowing the coalesced particulates to be forcibly expelled from the interior area of the housing as they are forced radially outwards by the centrifugal force towards and through the exhaust slots by rapid, axial rotation of the housing.In one preferred embodiment a plurality of elongated slots in the housing provides both an intake and an exhaust function.
    Type: Grant
    Filed: March 18, 1991
    Date of Patent: February 25, 1992
    Assignee: Rexair, Inc.
    Inventors: Gary A. Kasper, Roy O. Erickson, Dean R. Rohn, Steven R. Selewski, Craig R. Cummins
  • Patent number: 5030257
    Abstract: A separator for use in connection with a liquid bath-type vacuum cleaner system. The separator includes an annular, cup-like housing adapted to rotate axially about its vertical axis for generating a centrifugal force to be applied to intake air therein; and a plurality of intake/exhaust slots formed in the housing for enabling dust and dirt particulates entrained in the intake air and liquid particulates from a liquid bath to be drawn into an interior area of the housing and coalesce therein, whereby the coalesced particulates are subjected to centrifugal force and are thereby separated from the intake air. The intake/exhaust slots further enable the coalesced particulates to be forcibly expelled from the interior area of the housing therethrough as they are forced radially outwards by the centrifugal force generated by the rapid, axial rotation of the housing.
    Type: Grant
    Filed: October 18, 1989
    Date of Patent: July 9, 1991
    Assignee: Rexair, Inc.
    Inventors: Gary A. Kasper, Roy O. Erickson, Dean R. Rohn, Steven R. Selewski, Craig R. Cummins