Patents by Inventor Tek-Che Chu

Tek-Che Chu 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: 6778743
    Abstract: A cable termination arrangement is used to terminate cables, such as armored fiber optic cables, to a connecting structure, such as a cable joint or coupling. Strength members, such as aramid rods, extending along the cable are terminated with radial termination members, such as crimping ferrules. The radial termination members extend into a termination cavity within the connecting structure and are spaced substantially equally, for example, using separators. An epoxy or other suitable retaining material encases the radial termination members, strength members, and separators.
    Type: Grant
    Filed: November 22, 2000
    Date of Patent: August 17, 2004
    Assignee: Tyco Telecommunications (US) Inc.
    Inventors: Maurice Kordahi, David Giordano, Tek-Che Chu, Tony S. Fong
  • Patent number: 5463711
    Abstract: A submarine optical fiber cable adapted for use in shallow-water submarine applications having the economy of non-armored cables with the robustness of armored cables is disclosed. The optical fiber cable comprises a plurality of longitudinally extending strength members arranged in a single layer around a single longitudinally extending central tube in a substantially close fitting manner. Disposed within the central tube is at least one optical fiber. In an illustrative example of the invention, six galvanized steel strength members are arranged in a close fitting manner around a hermetically sealed central steel tube, where the tube and the strength members have substantially identical outside diameters, so as to form a strong and stable shell. Plastic water-blocking material is disposed in the interstices between the strength members and the tube. Insulated conductors are disposed in grooves formed between adjacent strength members.
    Type: Grant
    Filed: July 29, 1994
    Date of Patent: October 31, 1995
    Assignee: AT&T IPM Corp.
    Inventor: Tek-Che Chu
  • Patent number: 5224190
    Abstract: An optical fiber cable (20) includes a longitudinally extending copper core member (34). The core member is formed with at least one groove (36) in which is disposed at least one optical fiber. The optical fiber is coupled sufficiently to the core member preferably by an ultraviolet light energy cured material to substantially inhibit relative movement between the optical fiber and the core member when forces are applied to the cable. A sheath system which includes a plastic jacket (112) is disposed about the core member. The sheath system includes a strength member system which includes longitudinally extending copper wires (105, 105) and steel wires (101, 107). Disposed about the steel and copper wires is a steel shield (110) which provides hermetic protection for the optical fibers.
    Type: Grant
    Filed: March 31, 1992
    Date of Patent: June 29, 1993
    Assignee: AT&T Bell Laboratories
    Inventors: Tek-Che Chu, Kenneth M. Kroupa, Clyde J. Lever, Jr., Parbhubhai D. Patel, Seymour Shapiro, Marsha S. Stix, Roger A. Willby
  • Patent number: 5222177
    Abstract: An optical fiber cable (20) includes a longitudinally extending core member (34) which may be made of a plastic material. The core member is formed with at least one groove (36) in which is disposed at least one optical fiber (28). The optical fiber is coupled sufficiently to the core member, preferably by an ultraviolet light energy cured material, to inhibit substantially relative movement between the core member and the optical fiber when forces are applied to the cable. A sheath system which includes wire-like strength members and a plastic jacket (112) is disposed about the core member. A waterblocking material (108) disposed within interstices among the wire-like strength members and between an inner layer of the strength members and the core member causes coupling between the wire-like strength members and the core member.
    Type: Grant
    Filed: March 31, 1992
    Date of Patent: June 22, 1993
    Assignee: AT&T Bell Laboratories
    Inventors: Tek-Che Chu, Kenneth M. Kroupa, Clyde J. Lever, Jr., Parbhubhai D. Patel