Importance

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Abstract

An inspection system in which a fiber optic borescope has an elongated flexible body extending between a control head at a proximal end and an objective assembly at a distal end. The distal end is slidably inserted through a tubular elongated flexible guide member which has an operating head at a near end and a distal collar at a remote end capable of deflecting in four discrete directions. The objective assembly of the borescope is capable of deflecting in two discrete directions. A telescoping rigid support member connects the control head to the operating head and slidably receives the flexible body of the borescope. When the support member is retracted, the control head is proximate to the operating head and the objective assembly extends far beyond the distal collar. When the support member is extended, the control head is distant from the operating head and the objective assembly lies proximate to the distal collar. Cables for operating the distal collar extend between the near end and the remote end and each cable is operatively connected to the distal collar at one end and at the other end to an actuating element on the operating head for manual operation of the distal collar. A coil spring coaxial with the guide member extends between the operating head and the distal collar and firmly holds the operating cables against an inner surface of the guide member.

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First Claim