Patents by Inventor Hubert Lichtenberg

Hubert Lichtenberg 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).

  • Apparatus for transporting and charging uncartridged explosives, more particularly plastic explosives
    Patent number: 3996836
    Abstract: A hollow container having two chambers separated by a diaphragm. A flowable explosive is carried in one chamber and an incompressible fluid is forced into the other chamber as needed, thereby flexing the diaphragm and forcing out the explosive into a dispensing hose. The dispensing hose includes a nozzle with a seal for placing the explosive in a bore hole. The explosive being dispensed can be accurately metered.
    Type: Grant
    Filed: May 5, 1975
    Date of Patent: December 14, 1976
    Assignee: Dynamit Nobel Aktiengesellschaft
    Inventor: Hubert Lichtenberg