Patents by Inventor David A. Krygowski

David A. Krygowski 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).

  • Portable pressurized sprayer
    Patent number: 10532370
    Abstract: A tank holding a quantity of liquid releasably connects to a portable pump assembly through a connector to provide a portable sprayer. The tank connects to a feed line that supplies spray nozzle with the liquid. The connector combines a quick disconnect connector with a pressure relief valve. The portable pump assembly includes an electric pump, a switch assembly, and a check valve. The portable pump assembly directs gas through the check valve into the connector to increase the gas pressure in the tank and force the liquid in the tank to flow through the feed line and out the spray nozzle. The switch assembly turns off the electric pump when the gas pressure in the tank exceeds a predetermined limit while maintaining the flow of liquid through the spray nozzle.
    Type: Grant
    Filed: October 20, 2016
    Date of Patent: January 14, 2020
    Inventors: Phillip B. Schrum, Mark A. Verosky, David A. Krygowski
  • PORTABLE PRESSURIZED SPRAYER
    Publication number: 20170106385
    Abstract: A tank holding a quantity of liquid releasably connects to a portable pump assembly through a connector to provide a portable sprayer. The tank connects to a feed line that supplies spray nozzle with the liquid. The connector combines a quick disconnect connector with a pressure relief valve. The portable pump assembly includes an electric pump, a switch assembly, and a check valve. The portable pump assembly directs gas through the check valve into the connector to increase the gas pressure in the tank and force the liquid in the tank to flow through the feed line and out the spray nozzle. The switch assembly turns off the electric pump when the gas pressure in the tank exceeds a predetermined limit while maintaining the flow of liquid through the spray nozzle.
    Type: Application
    Filed: October 20, 2016
    Publication date: April 20, 2017
    Applicant: FOREFRONT PRODUCT DESIGN, LLC
    Inventors: Phillip B. Schrum, Mark A. Verosky, David A. Krygowski