Patents by Inventor Robert Shawn Petersen

Robert Shawn Petersen 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).

  • DRAIN CLEARING DEVICE
    Publication number: 20150232317
    Abstract: The disclosed drain clearing devices have a housing that has a gas reservoir and a pressurization mechanism, such as hand pump and/or gas cartridge that compresses and/or maintains compressed gas in a gas reservoir. A nozzle and a pressure release actuator also attached to the housing. The pressure release actuator, when activated, causes compressed gas to be released from the gas reservoir through the nozzle and into a drain to clear an obstruction.
    Type: Application
    Filed: April 30, 2015
    Publication date: August 20, 2015
    Inventors: Sean Michael Donohue, Robert Shawn Petersen