Abstract: Unison ring system includes first unison ring portion, second unison ring portion, and bearing. Second unison ring portion is co-axial with first unison ring portion. First unison ring portion includes first unison ring and first bearing location portion and second unison ring portion includes second unison ring and second bearing location portion. First bearing location portion is co-axial with first unison ring and projects axially from first unison ring, while second bearing location portion is co-axial with second unison ring and projects axially from second unison ring. First bearing location portion includes outwardly opening groove, and second bearing location portion includes inwardly opening groove. First unison ring portion and second unison ring portion positioned with first bearing location portion being concentric with second bearing location portion defining annular cavity there between.

Abstract: A method of detecting a flow blockage in a pipe includes: arranging a fluid flow along the pipe, the pipe in fluid communication with a pressure sensor; configuring the pressure sensor to measure a pressure within the pipe; recording plurality of measurements of pressure within the pipe; sampling ‘n’ successive values of pressure within the pipe; performing an analytical test on the ‘n’ successive values, the analytical test producing an output value, the output value representative of a variation in the individual ones of the ‘n’ successive values; comparing the output value to a pre-defined threshold value, the threshold value indicative of a lack of variation in the individual ones of the ‘n’ successive values; and if the output value is less than the threshold value, generating an alert to provide a user with an indication of the presence of flow blockage in the pipe.

Abstract: Unison ring system includes first unison ring portion, second unison ring portion, and bearing. Second unison ring portion is co-axial with first unison ring portion. First unison ring portion includes first unison ring and first bearing location portion and second unison ring portion includes second unison ring and second bearing location portion. First bearing location portion is co-axial with first unison ring and projects axially from first unison ring, while second bearing location portion is co-axial with second unison ring and projects axially from second unison ring. First bearing location portion includes outwardly opening groove, and second bearing location portion includes inwardly opening groove. First unison ring portion and second unison ring portion positioned with first bearing location portion being concentric with second bearing location portion defining annular cavity there between.

Abstract: A method of detecting a flow blockage in a pipe includes: arranging a fluid flow along the pipe, the pipe in fluid communication with a pressure sensor; configuring the pressure sensor to measure a pressure within the pipe; recording plurality of measurements of pressure within the pipe; sampling ‘n’ successive values of pressure within the pipe; performing an analytical test on the ‘n’ successive values, the analytical test producing an output value, the output value representative of a variation in the individual ones of the ‘n’ successive values; comparing the output value to a pre-defined threshold value, the threshold value indicative of a lack of variation in the individual ones of the ‘n’ successive values; and if the output value is less than the threshold value, generating an alert to provide a user with an indication of the presence of flow blockage in the pipe.

Abstract: An optical fiber termination apparatus includes a housing defining an optical fiber receiving chamber and having a connector adaptor receiving opening. A connector adaptor is positioned in the connector adaptor receiving opening. The connector adaptor has a connector opening therein extending from outside the housing to the optical fiber receiving chamber. The connector opening is configured to mate with a connector of a predetermined connector type. Methods of terminating optical fiber using optical fiber termination apparatus are also provided.