Patents by Inventor David Richard Hirst

David Richard Hirst 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).

  • Parachute ripcord pins
    Publication number: 20060038078
    Abstract: Ripcord pins secure a parachute pack and, on removal, allow the parachute to be deployed from the pack. Such pins are provided with indicating means that provide an indication, such as a visual indication, that the pin has been bent. This avoids the re-use of straightened pins that may break in use.
    Type: Application
    Filed: July 21, 2005
    Publication date: February 23, 2006
    Inventors: David Richard Hirst, Adrian Jones