Patents by Inventor Robert E. Stumm

Robert E. Stumm 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).

  • Patent number: 7492052
    Abstract: An electrical generator for use in conjunction with a heat exchange system having an evaporator and a condenser is presented. The electrical generator may include a control circuit, a moderator and a working spool. The moderator may include a moderator cylinder having a moderator chamber and three moderator ports in fluid communication with the moderator chamber. The three moderator ports are respectively in fluid communication with the evaporator, the condenser and the working spool. The moderator and working spool each may include a coil surrounding at least a portion of a cylinder having a piston slidably disposed therein. The working spool coil is configured for generating current upon movement of the working spool piston. Movement of the working spool piston is achieved through the selective admission of the working fluid to the working spool as controlled by the moderator and the control circuit.
    Type: Grant
    Filed: November 21, 2006
    Date of Patent: February 17, 2009
    Assignee: Northrop Grumman Corporation
    Inventor: Robert E. Stumm
  • Publication number: 20080116693
    Abstract: An electrical generator for use in conjunction with a heat exchange system having an evaporator and a condenser is presented. The electrical generator comprises a control circuit, a moderator and a working spool. The moderator comprises a moderator cylinder having a moderator chamber and three moderator ports in fluid communication with the moderator chamber. The three moderator ports are respectively in fluid communication with the evaporator, the condenser and the working spool. The moderator and working spool each comprise a coil surrounding at least a portion of a cylinder having a piston slidably disposed therein. The working spool coil is configured for generating current upon movement of the working spool piston. Movement of the working spool piston is achieved through the selective admission of the working fluid to the working spool as controlled by the moderator and the control circuit.
    Type: Application
    Filed: November 21, 2006
    Publication date: May 22, 2008
    Inventor: Robert E. Stumm