Patents by Inventor Eric C. Gerst

Eric C. Gerst 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).

  • Rigid reactive cord and methods of use and manufacture
    Patent number: 6694886
    Abstract: The present invention provides a rigid reactive cord such as a detonating cord (10) that includes a core (38) of an energetic material and a rigid non-metal sheath (40) disposed about the core. The cord (10) is sufficiently rigid so that it can be inserted through a material to be fractured or through passages formed therein. A method of using the rigid reactive cord for the removal of combustion residue from boiler tubes is also presented.
    Type: Grant
    Filed: August 24, 2000
    Date of Patent: February 24, 2004
    Assignee: The Ensign-Bickford Company
    Inventors: Mark E. Woodall, Dennis P. Johnson, Eric C. Gerst