Patents by Inventor Johnathan S. Colvin

Johnathan S. Colvin 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).

  • Discharge vacuum relief valve for safety vacuum release system
    Patent number: 9243413
    Abstract: Embodiments of the invention provide a pumping system and a discharge vacuum relief valve for use in a hydraulic system including a safety vacuum release system pump to circulate water in a swimming pool and/or a spa. The hydraulic system includes one or more check valves located on a discharge side of the safety vacuum release system pump. The discharge vacuum relief valve is capable of venting a vacuum at the discharge side of the safety vacuum release system pump during a vacuum event at a suction side of the safety vacuum release system pump.
    Type: Grant
    Filed: December 8, 2011
    Date of Patent: January 26, 2016
    Assignee: Pentair Water Pool and Spa, Inc.
    Inventors: Ronald B. Robol, Daniel J. Hruby, Johnathan S. Colvin
  • Discharge Vacuum Relief Valve for Safety Vacuum Release System
    Publication number: 20120145251
    Abstract: Embodiments of the invention provide a pumping system and a discharge vacuum relief valve for use in a hydraulic system including a safety vacuum release system pump to circulate water in a swimming pool and/or a spa. The hydraulic system includes one or more check valves located on a discharge side of the safety vacuum release system pump. The discharge vacuum relief valve is capable of venting a vacuum at the discharge side of the safety vacuum release system pump during a vacuum event at a suction side of the safety vacuum release system pump.
    Type: Application
    Filed: December 8, 2011
    Publication date: June 14, 2012
    Inventors: Ronald B. Robol, Daniel J. Hruby, Johnathan S. Colvin