Glass manufacturing – Processes – Forming product or preform from molten glass
65 2, 65 111, C03B 37023
The present invention provides a fiber coupler manufacturing apparatus comprising a pair of fiber holding portions and a fiber clamp disposed on each of the fiber holding portions for holding at least two optical fibers. A weight and pulley system is arranged wherein a first weight is coupled to each of the fiber holding portions to pull the fiber holding portions away from each other to apply tension to the optical fibers. A heating unit is disposed between the fiber holding portions and proximate to the optical fibers to heat the optical fibers. A second weight is coupled to either the fiber holding portions or the first weight and rests on a movable platform. As the movable platform descends in a vertical direction, the second weight applies additional force to the fiber holding portions and thus applies additional tension to the optical fibers.
patent: 4736632 (1988-04-01), Case
patent: 4765816 (1988-08-01), Bjornlie et al.
Lindsay Robert L.
Sumiden Opcom Ltd.
Sumitomo Electric Industries Ltd.
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