Spacer for optical fiber cable and optical fiber cable using the spacer
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 21, 2004
Grant Date -
N/A
app pub date -
Feb 5, 2001
filing date -
Jun 3, 1999
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A polyethylene spacer for optical fiber cable including a central tensile member, an intermediate coating layer arranged on an outer periphery of the central tensile member and being compatible with polyethylene and a main coating arranged on an outer periphery of the intermediate coating layer and having continuous spiral grooves for accommodating optical fibers and which are inverted periodically in a lengthwise direction. The main coating is formed from polyethylene resin. The spacer includes ribs defining the spiral grooves. A minimum thickness of the ribs is 1.0 mm or less, the groove inclination angle .alpha. of a cross section of the spacer at inversion part is 18.degree. or less. A resin density of a root part of each rib is the lowest in comparison to a resin density at a tip part of the rib and central parts of the rib between the root part and the tip part.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully