Abstract: A ruggedized optical rearrangement device is provided. The device includes an input side having multiple separate flexible input light guide arrays, each of the arrays including multiple light guides. The device also includes an output side in which the light guides are repositioned to form multiple flexible output light guide arrays. A tube positioned between the input and output sides protects a transition region of the plurality of light guides. Adapters are positioned at each end of the tube, and at least one flexible strength element associated with the light guide arrays is connected to the adapters to prevent damage to the light guides. A method for ruggedizing an optical rearrangement device is also provided.

Abstract: A ruggedized optical rearrangement device is provided. The device includes an input side having multiple separate flexible input light guide arrays, each of the arrays including multiple light guides. The device also includes an output side in which the light guides are repositioned to form multiple flexible output light guide arrays. A tube positioned between the input and output sides protects a transition region of the plurality of light guides. Adapters are positioned at each end of the tube, and at least one flexible strength element associated with the light guide arrays is connected to the adapters to prevent damage to the light guides. A method for ruggedizing an optical rearrangement device is also provided.

Abstract: A pressure surge relief system for a liquid transporting pipeline, comprising a surge relief line adapted to be tapped from the pipeline. The relief line includes a valve which is conditioned to open quickly to substantial flow when the pressure in the line exceeds a predetermined safe limit, which is well above the normal pipeline pressure. When the valve opens, it diverts to a closed receptacle, that quantity of liquid which is necessary to prevent the pressure from exceeding said predetermined limit. Hence, in the event of the surge, much of the pressure is absorbed in the liquid and pipe, and just that quantity of liquid which is necessary to relieve pressures of unsafe proportions is discharged to the closed receptacle. The receptacle is pre-charged with a gas to cushion the impact of the surge and also includes means to dissipate energy of the liquid surge and to bring the liquid to a state of quiescence as quickly as possible.