Patents by Inventor Douglas R. Swarts

Douglas R. Swarts 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).

  • Universal sewer inlet fitting
    Patent number: 9845062
    Abstract: A nozzle is configured for interaction with a sewer inlet fitting. The sewer inlet fitting is configured for connection to a sewer inlet of a sewer system or sewage receptacle. The sewer inlet fitting includes a cover operable between open and closed conditions by action of the nozzle being inserted thereinto and withdrawn therefrom.
    Type: Grant
    Filed: October 21, 2015
    Date of Patent: December 19, 2017
    Assignee: Lippert Components Manufacturing, Inc.
    Inventor: Douglas R. Swarts
  • Waste evacuation system for a vehicle
    Patent number: 8616241
    Abstract: A waste evacuation system for a vehicle having an extendible and retractable hose for transferring the waste has been described.
    Type: Grant
    Filed: October 24, 2003
    Date of Patent: December 31, 2013
    Inventor: Douglas R. Swarts
  • Method and apparatus for waste evacuation
    Publication number: 20040112432
    Abstract: A method and apparatus for waste evacuation using an extendible and retractable hose for transferring the waste have been described.
    Type: Application
    Filed: October 24, 2003
    Publication date: June 17, 2004
    Applicant: Phase Four Industries, Inc.
    Inventor: Douglas R. Swarts
  • Waste evacuation system for a vehicle
    Publication number: 20040084098
    Abstract: A waste evacuation system for a vehicle having an extendible and retractable hose for transferring the waste has been described.
    Type: Application
    Filed: October 24, 2003
    Publication date: May 6, 2004
    Applicant: Phase Four Industries, Inc.
    Inventor: Douglas R. Swarts