Glass manufacturing – Processes – Forming product or preform from molten glass
Patent
1976-06-30
1978-09-26
Lindsay, Jr., Robert L.
Glass manufacturing
Processes
Forming product or preform from molten glass
65DIG7, 156180, 156296, 350 9622, C03B 2320
Patent
active
041166558
ABSTRACT:
An improved fibre-optic cable termination which substantially reduces light losses and also facilitates cable termination in the field as opposed to the factory.
According to this method the fibres are compressed by pushing the bundle, preferably sheathed in a thin glass ferrule, into a heated tool having a tapered hole. A protective metal coupling may be incorporated by heating a metal sheath with a tapered bore and pushing the glass sheathed bundle into the metal sheath. The metal sheath may then constitute a pin of a pin and socket optical coupling.
In all cases the temperature and pressure are adjusted so that the individual fibres are squeezed into approximately hexagonal form so as to eliminate the interstices to a substantial extent. The temperature and pressure are, however, limited to prevent any substantial fusion and coalescing of fibres and consequent loss of the optical barrier between them.
REFERENCES:
patent: 3556636 (1971-01-01), Roberts et al.
patent: 3912362 (1975-10-01), Hudson
patent: 3999837 (1976-12-01), Bowen et al.
Elliott Brothers (London) Limited
Lindsay, Jr. Robert L.
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