Patents by Inventor Dwight V. Call

Dwight V. Call 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 visual emergency signal device
    Patent number: 5831522
    Abstract: A portable visual emergency signal device for generally indicating caution and for providing a beacon to guide emergency vehicles or personnel to an emergency site. The emergency signal device is sectioned into a plurality of wedges, each wedge having a translucent faceted face and a distinct color. The emergency signal device also contains a plurality of sequentially fired lamps and at least one reflective surface cooperating with the lamps to facilitate propagation of light energy. The emergency signal device further includes a battery and an alarm cooperating with the battery to indicate a low battery.
    Type: Grant
    Filed: January 6, 1997
    Date of Patent: November 3, 1998
    Inventors: Leonard E. Weed, Ronald J. Weed, Dwight V. Call
  • Portable visual emergency signal device
    Patent number: 5627513
    Abstract: A portable visual emergency signal device for generally indicating caution and for providing a beacon to guide emergency vehicles or personnel to an emergency site. The emergency signal device is sectioned into a plurality of wedges, each wedge having a translucent faceted face and a distinct color. The emergency signal device also contains a plurality of sequentially fired lamps and at least one reflective surface cooperating with the lamps to facilitate propagation of light energy. The emergency signal device further includes a battery and an alarm cooperating with the battery to indicate a low battery.
    Type: Grant
    Filed: April 25, 1995
    Date of Patent: May 6, 1997
    Inventors: Leonard E. Weed, Ronald J. Weed, Dwight V. Call