Abstract: A flexible, multiple passage conduit assembly for use in fiber optic systems comprises an outer elongated housing formed from circumferentially corrugated flexible plastic conduit of cylindrical configuration. A separate rigid end fitting member of generally cylindrical configuration is joined to each end of the conduit to close the ends and allow for joining the assembly to associated multiple passage conduits. A plurality of lengths of hollow flexible plastic tubing are located within the conduit housing to extend the length thereof. The lengths of tubing terminate in open ends adjacent the end fittings. The open ends of the tubing are connected to the end fitting members by connections which permit relative axial movement between the lengths of tubing and at least one of the end fitting members.

Abstract: Provided is a flexible reinforced hose (50) having an inner core tube (2) for conveying fluids surrounded by two layers of tensioned fibrous reinforcement layer (4, 8) between which is disposed a spirally wound flexible polymeric tape (6) which is unbonded to either of the reinforcement layers and free to move relative thereto under flexing and pressure pulsing conditions and which is adapted to prevent moisture from pentrating core tube (2) from outside of hose (50). Other preferred embodiments include hose (60) in which a flexible polymeric tape (12) is applied longitudinally and hose (70) where the tape is a flexible polymeric metal composite tape (20) as well as hose (32) in which the reinforcement layers (32, 36) are oppositely helically wound.

Abstract: A flexible hose for conveying fluids under pressure and suited for high temperature environments wherein the hose includes an elastomeric core tube, a thermal barrier over the core tube, a single ply of wire reinforcement and a rubber cover. Preferably the thermal barrier is a nonwoven fiberglass strip, but it may as well be an asbestos impregnated rubber compound.