The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 26, 1982
Filed:
Aug. 13, 1979
Ulrich Oestreich, Munich, DE;
Guenter Zeidler, Unterpfaffenhofen, DE;
Siemens Aktiengesellschaft, Berlin & Munich, DE;
Abstract
An optical communication cable structure having a longitudinally gas-impermeable cable core surrounded by an inner sheath, an intermediate layer and an outer sheath with the intermediate layer being bonded to the inner and outer sheath. The intermediate layer is comprised of a simple or crossed spinning of yarn, such as an aramide yarn, which is wound about the cable core with a given length of lay approximately corresponding to the diameter of the cable core and at select spaced apart cable length intervals the yarn is wound with a substantially shortened length of web lay relative to the given length of cable lay, to define space-free pressure windings compressing the core at such select intervals. With this type of an arrangement, inflation of the inner sheath and occurrence of longitudinal gas channels extending along the length of the cable core is avoided.