Patents by Inventor Walter Hardy Piel

Walter Hardy Piel 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).

  • Patent number: 10267611
    Abstract: Wireless detonator systems present opportunities for controlled blasting of rock without the encumbrances of physical wired connections at the blast site. Disclosed herein are wireless detonator assemblies, which sense the state of environmental condition(s) of their immediate vicinity, and which are active to receive and/or process a command signal to FIRE only if the environmental condition(s) are deemed suitable or appropriate according to predetermined parameters. Also disclosed are improved methods of blasting involving such wireless detonator assemblies, as well as corresponding wireless electronic primers.
    Type: Grant
    Filed: April 27, 2012
    Date of Patent: April 23, 2019
    Assignee: ORICA INTERNATIONAL PTE LTD.
    Inventors: Charles Michael Lownds, Walter Hardy Piel
  • Publication number: 20140053750
    Abstract: Wireless detonator systems present opportunities for controlled blasting of rock without the encumbrances of physical wired connections at the blast site. Disclosed herein are wireless detonator assemblies, which sense the state of environmental condition(s) of their immediate vicinity, and which are active to receive and/or process a command signal to FIRE only if the environmental condition(s) are deemed suitable or appropriate according to predetermined parameters. Also disclosed are improved methods of blasting involving such wireless detonator assemblies, as well as corresponding wireless electronic primers.
    Type: Application
    Filed: April 27, 2012
    Publication date: February 27, 2014
    Applicant: ORICA INTERNATIONAL PTE LTD.
    Inventors: Charles Michael Lownds, Walter Hardy Piel