Patents by Inventor Robert Stephen Douglass

Robert Stephen Douglass 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: 6157287
    Abstract: A fuse system includes a fuse holder having an outer surface; a pair of fuse clips mounted inside the fuse holder, the pair of fuse clips being recessed from the outer surface of the fuse holder a predetermined distance; an insulative fuse housing; a fuse element mounted within the insulative fuse housing; blade terminals electrically connected to the fuse element and extending from the fuse housing; and an insulative sleeve on each of the blade terminals, the insulative sleeves extending from the fuse housing and covering a portion of each of the respective blade terminals and leaving a remaining portion of the blade terminals exposed; wherein the exposed portions of the blade terminals are less than the predetermined distance so that when the blade terminals make an electrical contact with the fuse clips, the exposed portions of the blade terminals are within the fuse holder and only the insulative sleeves are exposed.
    Type: Grant
    Filed: March 3, 1999
    Date of Patent: December 5, 2000
    Assignee: Cooper Technologies Company
    Inventors: Robert Stephen Douglass, Matthew Rain Darr, Daniel Eugene Rowton
  • Patent number: 5841337
    Abstract: A safety fuse system includes a safety fuse including a fuse casing having a bottom surface and opposing end surfaces at each end of the bottom surface; a fuse element inside the fuse casing; a pair of electrical contacts connected to the fuse element, the electrical contacts extending through openings in the bottom surface of the fuse casing to an exterior of the fuse casing; the openings being located at a distance from the opposing end surfaces so that the electrical contacts are remote from the opposing ends; a fuse holder including a fuse holder casing having a top surface, the top surface including apertures for receiving the electrical contacts of the safety fuse, the apertures being in alignment with the safety fuse openings when the safety fuse is engaged with the fuse holder; metal contacts within the fuse holder casing for receiving the electrical contacts.
    Type: Grant
    Filed: January 17, 1997
    Date of Patent: November 24, 1998
    Assignee: Cooper Technologies Company
    Inventor: Robert Stephen Douglass
  • Patent number: D427569
    Type: Grant
    Filed: August 18, 1999
    Date of Patent: July 4, 2000
    Assignee: Cooper Technologies Company
    Inventors: Robert Stephen Douglass, Matthew Rain Darr
  • Patent number: D427976
    Type: Grant
    Filed: August 18, 1999
    Date of Patent: July 11, 2000
    Assignee: Cooper Technologies Company
    Inventors: Robert Stephen Douglass, Matthew Rain Darr
  • Patent number: D429223
    Type: Grant
    Filed: August 18, 1999
    Date of Patent: August 8, 2000
    Assignee: Cooper Technologies Company
    Inventors: Robert Stephen Douglass, Matthew Rain Darr