Patents by Inventor Ronald John Herniman

Ronald John Herniman 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).

  • Device and process
    Patent number: 3952656
    Abstract: A stemming device for holes which device comprises at least one layer of a esilient material capable of forming a seal in conjunction with the wall of a hole, the seal being characterized in that it prevents, minimizes or substantially retards the flow of flowable, pourable or pumpable material from the hole. The device is used to stem a hole by positioning the same in the hole in a manner such that said stemming device forms a seal in conjunction with the wall of the hole capable of preventing, minimizing or substantially retarding the flow of flowable, pourable or pumpable material from the hole.
    Type: Grant
    Filed: September 5, 1973
    Date of Patent: April 27, 1976
    Assignee: Imperial Chemical Industries of Australia and New Zealand Limited
    Inventors: Richard Fox, David Gilbert Hay, Ronald John Herniman