Patents by Inventor Douglas R. Barnes

Douglas R. Barnes 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: 5885174
    Abstract: A new adjustable golf tee setter for consistently positioning a golf ball at a correct height for a tee shot. The inventive device includes an outer cylinder having a closed upper end, an open lower end, and a cylindrical side wall therebetween. The open lower end has a flange disposed around a periphery thereof. A cup portion is slidably received within the open lower end of the outer cylinder. The cup portion has a cylindrical configuration. The cup portion has a closed upper end and an open lower end. The open lower end is dimensioned for receiving an upper end of a golf tee therein.
    Type: Grant
    Filed: January 15, 1998
    Date of Patent: March 23, 1999
    Inventor: Douglas R. Barnes
  • Patent number: 4139990
    Abstract: An attenuator, for use in a fluid system for reducing pulsations and transients, having a vortex chamber with a plurality of tangential inlets and one or more outlets with converging nozzles being provided in the inlets to increase the inlet flow velocity and to provide diode action. At least one elbow is provided in the outlet line adjacent the vortex chamber outlet with a second elbow being provided at a distance from the elbow adjacent the vortex outlet, approximately equal to the radius of the vortex chamber. The second elbow is not needed when outlet line discharges to a sump or to the atmosphere.
    Type: Grant
    Filed: April 17, 1978
    Date of Patent: February 20, 1979
    Inventor: Douglas R. Barnes
  • Patent number: 4126156
    Abstract: An attenuator, for use in a fluid system for reducing pulsations and transients, having a vortex chamber with a plurality of tangential inlets and one or more outlets with converging nozzles being provided in the inlets to increase the inlet flow velocity and to provide diode action. At least one elbow is provided in the outlet line adjacent the vortex chamber outlet with a second elbow being provided at a distance from the elbow adjacent the vortex outlet, approximately equal to the radius of the vortex chamber. The second elbow is not needed when outlet line discharges to a sump or to the atmosphere.
    Type: Grant
    Filed: March 24, 1977
    Date of Patent: November 21, 1978
    Inventor: Douglas R. Barnes
  • Patent number: H529
    Abstract: A separator for removing frozen or condensed water from an air stream, such as to aircraft environmental and avionics cooling systems, is described which comprises a generally tubular housing having an inlet and outlet, one or more flexible disks and baffle plates disposed in preselected spacing within the housing to define a tortuous air path therethrough, a motor, such as in the form of a magnetic pulse solenoid, operatively connected to each disk for controllably flexing each disk whereby moisture deposited on the disk is removed, and a conduit operatively connected to the housing for draining moisture therefrom.
    Type: Grant
    Filed: October 21, 1987
    Date of Patent: October 4, 1988
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventors: Bharatan R. Patel, Richard G. Sam, F. Miguel Joos, Douglas R. Barnes
  • Patent number: H535
    Abstract: A separator for removing frozen or condensed water from an air stream, such as to aircraft environmental and avionics cooling systems, is described which comprises a generally tubular housing having an inlet and outlet, one or more screens of selected mesh size disposed in preselected spacing generally transverse of a direction of air flow within the housing, a brush or wiper disposed against each screen for removing moisture from each screen, either the screen or contacting brush being rotatable relative to the other, a motor operatively connected to the rotatable screen or brush for rotating one against the other to remove moisture from the screen, and a conduit operatively connected to the housing for draining moisture therefrom.
    Type: Grant
    Filed: October 21, 1987
    Date of Patent: October 4, 1988
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventors: Richard G. Sam, Bharatan R. Patel, F. Miguel Joos, Douglas R. Barnes