Abstract: A system and methods through which pictorial views of an object's configuration, arranged in a hierarchical fashion, are navigated by a person to establish a visual context within the configuration. The visual context is automatically translated by the system into a set of search parameters driving retrieval of structured data and content (images, documents, multimedia, etc.) associated with the specific context. The system places “hot spots”, or actionable regions, on various portions of the pictorials representing the object. When a user interacts with an actionable region, a more detailed pictorial from the hierarchy is presented representing that portion of the object, along with real-time feedback in the form of a popup pane containing information about that region, and counts-by-type reflecting the number of items that are available within the system associated with the specific context and search filters established at that point in time.

Abstract: A system and methods through which pictorial views of an object's configuration, arranged in a hierarchical fashion, are navigated by a person to establish a visual context within the configuration. The visual context is automatically translated by the system into a set of search parameters driving retrieval of structured data and content (images, documents, multimedia, etc.) associated with the specific context. The system places “hot spots”, or actionable regions, on various portions of the pictorials representing the object. When a user interacts with an actionable region, a more detailed pictorial from the hierarchy is presented representing that portion of the object, along with real-time feedback in the form of a popup pane containing information about that region, and counts-by-type reflecting the number of items that are available within the system associated with the specific context and search filters established at that point in time.

Abstract: A tubing hanger lands in a tubular outer wellhead member and supports a string of production tubing. The tubing hanger has a production passage for communicating with the interior of the production tubing and an annulus passage for communicating with a tubing annulus on the exterior of the production tubing. An access port leads from the annulus passage to an exterior portion of the body for communicating the tubing annulus with the annulus passage. A valve stem is movable along an axis of the annulus passage between a closed position, blocking the access port, and an open position, exposing the annulus port. A pressure equalizing passage extends from the annulus passage above the valve stem to the annulus passage below the valve stem.

Abstract: A gate valve has downstream shear and seal capabilities in which the gate will stroke far enough to cover the downstream seat interface, and has a single shearing surface for shearing of a wireline. The gate has an inlay of a hard ductile material such as Stellite® along the shearing edge of the gate. The gate also has a coating of an extremely hard material such as tungsten carbide on the sealing surface of the gate. The seat also has an inlay of a hard ductile material such as Stellite® along its shearing edge. The gate fully covers and seals the upstream seat interface after the shear media has fallen below the upstream gate/seat interface. An upstream lip seal for the upstream seat ring is energized to seal on upstream pressure.

Abstract: A piezoelectric transducer comprising a casing having an opening in one face and a piezoelectric element extending across the opening has a casing containing a backing material in direct contact with the piezoelectric element. The backing material comprises a polymeric composition which may contain a heavy metal oxide, e.g. BiO, or a metal, e.g. Ni, in particulate form, and/or may contain particles of a material of lower specific gravity than the surrounding composition, the distribution of said particles being such that they are most concentrated in a region remote from the piezoelectric element and are least concentrated or essentially absent in the region immediately adjacent the piezoelectric element.

Abstract: A multichannel particle separator for use in cleaning engine inlet air is disclosed. The separator uses a plurality of channel assemblies arranged in parallel side-by-side fashion within a substantially rectangular housing. Separation of undesired particles is achieved by accelerating the incoming airstream to a high velocity and turning it such that inertia carries the dirt particles into a particle collection chamber. A small percentage of the incoming air is used to induce particulate matter to proceed into the particle collection chambers. Heated air from a source within the adjacent engine is passed along passages within the interior of each channel assembly to heat the surface thereof and prevent ice formation thereon when operating under adverse meteorological conditions.

Abstract: This invention relates to apparatus which harmlessly purges all fluids which leak from the fittings of a turbofan aircraft engine. Purging is achieved by passing a low speed flow of ventilating air along the exterior walls of the engine combustor section. This is accomplished by enshrouding the engine core with a cylindrical cowl. A space between the cowl and the engine combustor makes an annular shaped cavity. Ports in the cowl allow air to be brought into the cavity from the bypass ducting of the engine. The rapidly moving volume of air thus brought in vaporizes any fuel which leaks into the cavity. The vaporized air/fuel mixture is then exhausted into the hot gas plume emitted from the rear of the core engine.