Patents by Inventor Carl R. Rhoads

Carl R. Rhoads 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).

  • Portable D.C. power electro-chemical etching tool and method
    Patent number: 5896653
    Abstract: A low voltage, low current power supply and chemical etching tool includes a container and a D.C. voltage source sealed within the container. The D.C. voltage source may be one or more batteries that together generate less than 18 volts and 1.7 amps. Electrical leads are connected to the D.C voltage source, and lead from the container through openings in the container cap. The electrical leads have no splices external to the container. The openings through which the electrical leads pass are sealed. One of the electrical leads is connected to an electro-chemical etching head. The other electrical lead is connected to a connecting clip to be attached to the part to be marked by the etching process.
    Type: Grant
    Filed: July 15, 1997
    Date of Patent: April 27, 1999
    Assignee: Northrop Grumman Corporation
    Inventors: Carl R. Rhoads, Michael H. Granneman, Kelly G. Ralston