Patents by Inventor Paul W. Harbrecht

Paul W. Harbrecht 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).

  • Aerial metallic shielded cable having waterblocking provisions
    Patent number: 5095176
    Abstract: An aerial cable (20) includes a transmission portion and a supporting portion. The transmission portion includes a core (21) comprising at least one transmission medium enclosed in a relatively flexible dielectric wrapping material (23). The wrapping material is enclosed by two metallic shields (31, 40) between which is interposed a layer (42) of a waterblocking material. An outer one (40) of the shields is formed with overlapping longitudinal edge portions at least one of which is turned inwardly toward the core. A cavity (44) between those edge portions is provided with a waterblocking material which inhibits the longitudinal flow of water. The supporting portion includes a longitudinally extending strand material (60) capable of supporting a length of the cable which is supported by poles, for example, at ends of the length. A plastic jacket (45) encloses the supporting portion and the transmission portion.
    Type: Grant
    Filed: June 12, 1990
    Date of Patent: March 10, 1992
    Assignee: AT&T Bell Laboratories
    Inventors: Paul W. Harbrecht, Frederick L. Henklein, David M. Mitchell, Cecil G. Montgomery, Francis J. Mullin, James J. Riordan