Patents by Inventor David Robert Percival

David Robert Percival 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).

  • Swirl Spray Nozzle and Insert Thereof
    Publication number: 20090194611
    Abstract: A spray nozzle swirl element (24) is described which includes a swirl chamber 38 and an integral retaining portion (26). Retainer means (28) are provided on the retaining portion (26) to allow the swirl element (24) to be retained, in use, in a nozzle body (10) of the associated spray nozzle.
    Type: Application
    Filed: January 17, 2006
    Publication date: August 6, 2009
    Inventors: Frank Whittaker, David Robert Percival
  • Spray Nozzle
    Publication number: 20070262173
    Abstract: A spray nozzle comprises a cap 38 having an outlet orifice 41 formed therein for producing an atomised spray, the cap 38 having an outer surface 62, and further fluid outlet means 70 whereby a curtain of fluid can be directed over at least part of the outer surface 62.
    Type: Application
    Filed: May 11, 2007
    Publication date: November 15, 2007
    Inventors: David Robert Percival, Frank Whittaker, Robert McCarthy
  • Spray Nozzle
    Publication number: 20070257135
    Abstract: A spray nozzle comprises a nozzle body having a gas inlet connected to a gas supply line and a liquid inlet connected to a liquid supply line, and an orifice body controlling the rate at which liquid can flow, in use, from the liquid inlet to a mixing zone, wherein the orifice body is removable from the nozzle body without requiring disconnection of the nozzle body from the liquid supply line.
    Type: Application
    Filed: April 18, 2007
    Publication date: November 8, 2007
    Inventor: David Robert Percival