Patents by Inventor David Brian Kay

David Brian Kay 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).

  • Electrical conductive element
    Patent number: 8502077
    Abstract: A conductive element suitable for the transmission of an electrical operating signal to a detonator, which conductive element comprises a conductive filler homogeneously dispersed in a polymer matrix.
    Type: Grant
    Filed: July 12, 2007
    Date of Patent: August 6, 2013
    Assignee: Orica Explosives Technology Pty Ltd
    Inventors: David Brian Kay, Rodney Wayne Appleby, Richard John Goodridge, Dong Yang Wu, Stuart Arthur Bateman, Carmelo Dell'Olio
  • ELECTRICAL CONDUCTIVE ELEMENT
    Publication number: 20100162912
    Abstract: A conductive element suitable for the transmission of an electrical operating signal to a detonator, which conductive element comprises a conductive filler homogeneously dispersed in a polymer matrix.
    Type: Application
    Filed: July 12, 2007
    Publication date: July 1, 2010
    Applicants: Orica Explosives Technology Pty, Ltd., Commonwealth Scientific and Industrial Research Or ganisation
    Inventors: David Brian Kay, Rodney Wayne Appleby, Richard John Goodridge, Dong Yang Wu, Stuart Arthur Bateman, Carmelo Dell'Olio
  • Delivery of emulsion explosives
    Patent number: 6877432
    Abstract: Apparatus for delivering an emulsion explosives composition comprising unpressurized vessel (10) for storing or supplying the explosives composition to pressure chamber (1); sealable chamber inlet (2) for charging chamber (1) with emulsion explosives composition from vessel (10); and chamber outlet (4). Fluid pressure opening (6) applies a discharge pressure to chamber (1) for delivering emulsion explosives composition through outlet (4) to delivery hose (11) for charging blast holes. The apparatus is characterized by pressure chamber (1) having a maximum operating pressure and a volume such that the pressure volume (pV) value of chamber (1) is less than 10 MPaL.
    Type: Grant
    Filed: October 4, 2001
    Date of Patent: April 12, 2005
    Assignee: Orica Explosives Technology PTY LTD
    Inventors: Stephen Thomson, David Brian Kay
  • Delivery of emulsion explosives
    Publication number: 20030159610
    Abstract: Apparatus for delivering an emulsion explosives composition comprising unpressurised vessel (10) for storing or supplying the explosives composition to pressure chamber (1); sealable chamber inlet (2) for charging chamber (1) with emulsion explosives composition from vessel (10); and chamber outlet (4). Fluid pressure opening (6) applies a discharge pressure to chamber (1) for delivering emulsion explosives composition through outlet (4) to delivery hose (11) for charging blast holes. The apparatus is characterisedby pressure chamber (1) having a maximum operating pressure and a volume such that the pressure volume (pV) value of chamber (1) is less than 10 MPaL.
    Type: Application
    Filed: March 21, 2003
    Publication date: August 28, 2003
    Inventors: Stephen Thomson, David Brian Kay