Patents by Inventor Charles J. Welnack

Charles J. Welnack 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).

  • Microduct cable system having reduced thermal expansion force
    Patent number: 7242830
    Abstract: A cable system and method including a cable or a microduct provided within the groove extending vertically into, but not through, a pavement. The cable has a central strength member, at least one buffer tube stranded around the central strength member, an outerjacket surrounding the buffer tube and central strength member, and at least one transmission element provided within said at least one buffer tube. Provided within the microduct is a microduct cable including at least one transmission element. A cable including a central strength member, at least one buffer tube stranded around the central strength member, an outer jacket surrounding the buffer tube and central strength member, and at least one transmission element provided within said at least one buffer tube. The cable has a longitudinal thermal expansion force due to a change in temperature from 20° C. to 70° C. of less than 305 lbs when constrained.
    Type: Grant
    Filed: June 29, 2006
    Date of Patent: July 10, 2007
    Assignee: Draka Comteo B.V.
    Inventors: Olaf Storaasli, Ray Lovie, Bob J. Overton, Jeff Barker, Charles J. Welnack, Terry Holshouser, Sr.
  • Groove cable having a predetermined longitudinal thermal expansion force
    Patent number: 7197216
    Abstract: A cable system and method including a cable or a microduct provided within the groove extending vertically into, but not through, a pavement. The cable has a central strength member, at least one buffer tube stranded around the central strength member, an outer jacket surrounding the buffer tube and central strength member, and at least one transmission element provided within said at least one buffer tube. Provided within the microduct is a microduct cable including at least one transmission element. A cable including a central strength member, at least one buffer tube stranded around the central strength member, an outer jacket surrounding the buffer tube and central strength member, and at least one transmission element provided within said at least one buffer tube. The cable has a longitudinal thermal expansion force due to a change in temperature from 20° C. to 70° C. of less than 305 lbs when constrained.
    Type: Grant
    Filed: June 29, 2006
    Date of Patent: March 27, 2007
    Assignee: Draka Comteq B.V.
    Inventors: Olaf Storaasli, Ray Lovie, Bob J. Overton, Jeff Barker, Charles J. Welnack, Terry Holshouser, Sr.
  • Groove cable
    Patent number: 7095930
    Abstract: A cable system and method including a cable or a microduct provided within the groove extending vertically into, but not through, a pavement. The cable has a central strength member, at least one buffer tube stranded around the central strength member, an outer jacket surrounding the buffer tube and central strength member, and at least one transmission element provided within said at least one buffer tube. Provided within the microduct is a microduct cable including at least one transmission element. A cable including a central strength member, at least one buffer tube stranded around the central strength member, an outer jacket surrounding the buffer tube and central strength member, and at least one transmission element provided within said at least one buffer tube. The cable has a longitudinal thermal expansion force due to a change in temperature from 20° C. to 70° C. of less than 305 lbs when constrained.
    Type: Grant
    Filed: May 24, 2004
    Date of Patent: August 22, 2006
    Assignee: Draka Comteq B.V.
    Inventors: Olaf Storaasli, Ray Lovie, Bob J. Overton, Jeff Barker, Charles J. Welnack, Terry Holshouser, Sr.