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US 4,952,021 AGranted
Pressure transporting system
AssigneeSumitomo Electric Industries, Ltd.
InventorsTetsuji Aoki, Bang Lin, Yoshiaki Terasawa
Life of this patent
Estimating the term…
Abstract
An optical fiber cable incorporating either a lubricant or an antistatic agent or both in the outermost layer of the optical fiber unit; incorporating a lubricant or an antistatic agent or both in the pipe; and incorporating a lubricant or an antistatic agent or both in both the outermost layer of the optical fiber unit and the pipe.
Claims44
A pressure transporting system, comprising:
- at least one optical fiber unit;
- a pipe within which said at least one optical fiber unit can be transported by blowing with a pressurized gas;
- and
- means reducing friction between said at least one optical fiber unit and said pipe, said friction reducing means being provided on at least one of said at least one optical fiber unit and said pipe, said friction reducing means comprising an organic lubricant.
1 more element
A pressure tranporting system, comprising:
- at least one optical fiber unit;
- a pipe within which said at least one optical fiber unit can be transported by blowing with a pressurized gas;
- and
- means for reducing friction between said at least one optical fiber unit and said pipe, said friction reducing means being provided on at least one of said at least one optical fiber unit and said pipe, said friction reducing means comprising a fluorine resin based solid lubricant.
1 more element
A pressure transporting system, comprising:
- at least one optical fiber unit;
- a pipe within which said at least one optical fiber unit can be transported by blowing with a pressurized gas;
- and
- means for reducing friction between said at least one optical fiber unit and said pipe, said friction reducing means being provided on at least one of said at least one optical fiber unit and said pipe, said friction reducing means comprising a lubricant and an antistatic agent.
1 more element
A pressure transporting system, comprising:
- at least one optical fiber unit;
- a pipe within which said at least one optical fiber unit can be transported by blowing with a pressurized gas;
- and
- means for reducing friction between said at least one optical fiber unit and said pipe, said friction reducing means being provided on at least one of said at least one optical fiber unit and said pipe, said friction reducing means comprising an inorganic solid lubricant.
1 more element
a pressure transporting system, comprising:
- at least one optical fiber unit;
- a pipe within which said at least one optical fiber unit can be transported by blowing with a pressurized gas;
- and
- means for reducing friction between said at least one optical fiber unit and said pipe, said friction reducing means being provided on at least one of said at least one optical fiber unit and said pipe, said friction reducing means comprising and antistatic agent.
1 more element
An optical fiber cable, comprising:
- an optical fiber unit comprising one or more optical fibers, a filled layer surrounding said optical fiber, and a foamed coating layer surrounding said filled layer;
- a pipe formed of polymer, within which said optical fiber unit is confined and transported by blowing with a pressurized gas;
- and
- means for reducing friction between said optical fiber unit and said pipe, said friction reducing means being provided on at least one of said optical fiber unit and said pipe, said friction reducing means comprising a lubricant and an antistatic agent.
1 more element
Dependencies are inferred from the claim text.