Patents by Inventor Kenneth M. Kroupa

Kenneth M. Kroupa 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).

  • Underwater optical fiber cable having optical fiber coupled to grooved metallic core member
    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
  • Underwater optical fiber cable having optical fiber coupled to grooved core member
    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
  • Method of hydrothermally growing quartz
    Patent number: 4030966
    Abstract: This invention relates to a method of growing a single quartz crystal stone. In particular, a method for hydrothermally growing a quartz stone from a quartz seed is disclosed. A substantially stress-free quartz stone is grown in an autoclave by clamping a quartz crystal seed plate in a clip so as to permit substantially unobstructed growth of the stone in the plane of the seed plate, and growing at least a portion of the stone through at least one aperture formed in the clip.
    Type: Grant
    Filed: June 27, 1975
    Date of Patent: June 21, 1977
    Assignee: Western Electric Company, Inc.
    Inventors: Carl F. Hornig, Kenneth M. Kroupa, Earle E. Simpson