Cecil Gaines Montgomery

US Patent:

50951769, Mar 10, 1992

Filed:

Jun 12, 1990

Appl. No.:

7/536816

Inventors:

Paul W. Harbrecht - Roswell GA
Frederick L. Henklein - Lawrenceville GA
David M. Mitchell - Scottsdale AZ
Cecil G. Montgomery - Cumming GA
Francis J. Mullin - Chamblee GA
James J. Riordan - Alpharetta GA

Assignee:

AT&T Bell Laboratories - Murray Hill NJ

International Classification:

H01B 718
H01B 728

US Classification:

174 23R

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. A portion (62) of the jacket which encloses the supporting portion is connected by a relatively thick web (66) to a portion which encloses the transmission portion.

US Patent:

52492486, Sep 28, 1993

Filed:

Nov 27, 1991

Appl. No.:

7/799491

Inventors:

Candido J. Arroyo - Lithonia GA
David S. Hancock - Roswell GA
Cecil G. Montgomery - Cumming GA
Wayne M. Newton - Lilburn GA

Assignee:

AT&T Bell Laboratories - Murray Hill NJ

International Classification:

G02B 644

US Classification:

385113

Abstract:

A communication cable (20) includes a core (22) comprising a plurality of transmission media having a relatively supple layer (26) of a plastic material wrapped thereabout. Disposed about the layer of plastic material and in engagement therewith is a relatively rigid inner plastic jacket (28). Disposed about the inner jacket are additional components of a sheath system such as metallic shields and one or more additional plastic jackets. Interposed between the relatively supple layer of plastic material and the jacket is a water-blocking system which comprises two elongated strand materials (42, 44) such as yarns. The two elongated strand materials are wrapped helically about the layer of plastic material in opposite helical directions. The elongated strand materials are characterized by being yarn blends which comprise a portion of water-blocking filaments and a portion of relatively high strength filaments. The elongated strand materials are effective to intercept water which may travel along the cable between the relatively supple layer of plastic material and the jacket which is contiguous hereto.