Claims
- 1. A guided vehicle system which includes:
- a control station;
- a vehicle which is adapted to be controlled by said control station; and
- a package of optical fiber which is disposed in said vehicle, and from which optical fiber is adapted to be payed out, said package of optical fiber including:
- a bobbin;
- a plurality of convolutions of optical fiber which are wound on said bobbin; and
- a curable adhesive material which has been applied to outwardly facing surface portions of each of said convolutions, said adhesive material including a silicone material having a modulus variation which is relatively stable with respect to time throughout a relatively wide operating temperature range at payout speeds which may be as high as about 300 meters per second and a solvent system which includes an aromatic solvent constituent and which is effective to prevent premature precipitation or premature curing of said adhesive material, and wherein said package is such that the optical fiber may be payed off an end of the bobbin without rotational motion of the bobbin about a longitudinal axis thereof.
- 2. The system of claim 1, wherein said adhesive material covers portions of said turns which are contiguous to portions of adjacent convolutions.
- 3. The system of claim 1, wherein the surfaces of the adhesive material which covers the optical fiber convolutions are substantially uniform.
- 4. The system of claim 1, wherein said adhesive material comprises a reaction product of a reaction mixture which has been applied to the convolutions of each layer of said package, and wherein said mixture also comprises a catalyst and wetting agent.
- 5. The system of claim 1, wherein said solvent system comprises an aromatic solvent.
- 6. The system of claim 1, wherein said solvent system comprises an aromatic solvent which has a boiling point and a vapor pressure similar to that of methyl ethyl ketone.
- 7. The system of claim 1, wherein said solvent system is selected from the group consisting of toluene and xylene.
- 8. The system of claim 1, wherein the modulus of adhesive silicone material varies between about 10.sup.8.4 and 10.sup.9.8 dynes/cm.sup.2 within a temperature range about -30.degree. C. to 60.degree. C. over a time which extends from about 1 second to about 10.sup.-8 seconds.
Parent Case Info
This is a division of application Ser. No. 07/328,930, filed Mar. 27, 1989, now U.S. Pat. No. 4,955,688.
US Referenced Citations (24)
Divisions (1)
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Number |
Date |
Country |
Parent |
328930 |
Mar 1989 |
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