Patents by Inventor James G. Winkel

James G. Winkel 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: 6448742
    Abstract: A transportable power source (P) for an image viewing device (D) includes a battery pack housing assembly (10) to internally hold a first battery pack (12). An electrical interface circuit (14) receives an input voltage level (16) and provides a resulting output voltage level (18) as an output therefrom to operate the viewer device (D). The interface circuit (14) receives a selected first input voltage level (20) from the first battery pack (12). Alternatively, the interface circuit (14) receives a selected second input voltage level (22) from a power supply source (S) external to the battery pack housing (10). The interface circuit (14) further includes a switch (24) for selecting between sources of input voltage levels from among at least the first input voltage level (20) and the second input voltage level (22). The switch (24) also selectively controls the source for the resulting output voltage level (18).
    Type: Grant
    Filed: February 15, 2001
    Date of Patent: September 10, 2002
    Assignee: Litton Systems, Inc.
    Inventors: Michael D. Waterman, David W. Buck, Terry D. Morris, James G. Winkel, David A. Crosby
  • Publication number: 20020109481
    Abstract: A transportable power source (P) for an image viewing device (D) includes a battery pack housing assembly (10) to internally hold a first battery pack (12). An electrical interface circuit (14) receives an input voltage level (16) and provides a resulting output voltage level (18) as an output therefrom to operate the viewer device (D). The interface circuit (14) receives a selected first input voltage level (20) from the first battery pack (12). Alternatively, the interface circuit (14) receives a selected second input voltage level (22) from a power supply source (S) external to the battery pack housing (10). The interface circuit (14) further includes a switch (24) for selecting between sources of input voltage levels from among at least the first input voltage level (20) and the second input voltage level (22). The switch (24) also selectively controls the source for the resulting output voltage level (18).
    Type: Application
    Filed: February 15, 2001
    Publication date: August 15, 2002
    Inventors: Michael D. Waterman, David W. Buck, Terry D. Morris, James G. Winkel, David A. Crosby