Abstract: An in-line inspection tool comprising primary and secondary sensor suites is disclosed. The primary sensor suite may detect both interior and exterior defects. The secondary sensor suite may comprise a plurality of housings distributed in the circumferential direction around the body of the tool. Each housing may contain at least one flux sensor and at least one flux concentrator. The flux concentrator may increase the flux delivered to the flux sensor, thereby increasing the sensitivity of the secondary sensor suite while reducing the number of flux sensors required. The secondary sensor suite may detect substantially exclusively interior defects. By comparing the outputs of the primary and secondary sensor suites, a user may determine whether a defect is located on the interior or exterior of a pipeline being inspected.

Abstract: An in-line inspection tool comprising sensors mounted on inspection assemblies is disclosed. Each inspection assembly may be connected to the rest of the in-line inspection tool by two linkages. A first linkage may pivotally connect at one end thereof to a first end of an inspection assembly and pivotally connect at the other end thereof to the rest of the in-line inspection assembly. A second linkage may pivotally connect at one end thereof to a second end of the inspection assembly and pivotally connect at the other end thereof to the rest of the in-line inspection tool. The second linkage may comprise a first section and a second section pivotally connected to one another. Accordingly, the first and second linkages may support, exclusively through pivoting, both translational and rotational movement of the inspection assembly within a radial plane containing the central axis of the in-line inspection tool.

Abstract: An in-line inspection tool comprising a sensor suite, a processor processing the signal generated by at least one sensor of the sensor suite, and a canister housing the processor is disclosed. The canister may comprise a canister body formed as a hollow cylinder extending along a central axis from a first end to a second end. The canister may further comprise a canister lid inserted within the first end of the canister body. An alignment mechanism may prevent rotation of the canister lid with respect to the canister body about the central axis. A retaining ring may threadedly engage the first end of the canister body to maintain the canister lid within the first end of the canister body.

Abstract: A double hammock configured to accommodate two persons, while providing independent stability to both persons occupying the hammock. The hammock includes a first elongate hammock base, a second elongate hammock base, and an elongate divider member attached to both hammock bases so that the divider separates at least the head sections of the hammock bases and extends between them. Each hammock base includes a head section at one longitudinal end, a foot section at an opposite longitudinal end, an outer side section at one side between the head and foot sections, and an inner side section at an opposite side between the head and foot sections. The divider member includes a first side attached to the inner side section of the first hammock base and an opposite second side attached to the inner side section of the second hammock base.