Abstract: A first duct segment may include a first flange including a first planar mating face and a first recess. A second duct segment may include a second flange including a second planar mating face and a second recess. The first duct segment and the second duct segment may be installed in a gas turbine engine. A first E-seal may be inserted in the first recess, and a second E-seal may be inserted in the second recess. A gap may be measured between the first flange and the second flange. A flat shim may be selected based on the size of the gap. The flat shim may be inserted between the first flange and the second flange. A plurality of bolts may be inserted through the first flange, the flat shim, and the second flange to seal the first duct segment to the second duct segment.

Abstract: A first duct segment may include a first flange including a first planar mating face and a first recess. A second duct segment may include a second flange including a second planar mating face and a second recess. The first duct segment and the second duct segment may be installed in a gas turbine engine. A first E-seal may be inserted in the first recess, and a second E-seal may be inserted in the second recess. A gap may be measured between the first flange and the second flange. A flat shim may be selected based on the size of the gap. The flat shim may be inserted between the first flange and the second flange. A plurality of bolts may be inserted through the first flange, the flat shim, and the second flange to seal the first duct segment to the second duct segment.

Abstract: A first duct segment may include a first flange including a first planar mating face and a first recess. A second duct segment may include a second flange including a second planar mating face and a second recess. The first duct segment and the second duct segment may be installed in a gas turbine engine. A first E-seal may be inserted in the first recess, and a second E-seal may be inserted in the second recess. A gap may be measured between the first flange and the second flange. A flat shim may be selected based on the size of the gap. The flat shim may be inserted between the first flange and the second flange. A plurality of bolts may be inserted through the first flange, the flat shim, and the second flange to seal the first duct segment to the second-duct segment.

Abstract: Switch apparatus for enclosures having environmental protection are disclosed. In one example, an apparatus includes a housing having a first cavity and a second cavity, and a mounting plate coupled to the housing. The mounting plate is to cover the first and second cavities. An indicator light is coupled to the mounting plate adjacent the first cavity, and a hand-operated switch coupled to the mounting plate adjacent the second cavity.

Abstract: Switch apparatus for enclosures having environmental protection are disclosed. An example apparatus includes a hand-operated switch actuator spaced apart from a first side of a wall of an enclosure having environmental protection. The apparatus also includes a magnet attached to the switch actuator and a magnetically-responsive switch disposed adjacent a second side of the wall. Movement of the switch actuator is to change a position of the magnet to operate the magnetically-responsive switch.

Abstract: A first duct segment may include a first flange including a first planar mating face and a first recess. A second duct segment may include a second flange including a second planar mating face and a second recess. The first duct segment and the second duct segment may be installed in a gas turbine engine. A first E-seal may be inserted in the first recess, and a second E-seal may be inserted in the second recess. A gap may be measured between the first flange and the second flange. A flat shim may be selected based on the size of the gap. The flat shim may be inserted between the first flange and the second flange. A plurality of bolts may be inserted through the first flange, the flat shim, and the second flange to seal the first duct segment to the second-duct segment.

Abstract: A method and apparatus for analyzing passenger flow. A three-dimensional model of a passenger cabin is received. Features in the three-dimensional model of the passenger cabin are identified in response to receiving the three-dimensional model. A first plurality of objects is generated for the features in the passenger cabin. User input identifying a number of characteristics for passengers is received. A second plurality of objects for the passengers is generated using the number of characteristics. The second plurality of objects is assigned to seats within the passenger cabin. Each of the second plurality of objects is assigned a destination location and has a behavior when encountering an obstacle while moving from a current location to the destination location. A movement of the passengers to a number of locations relative to the seats assigned to the passengers is simulated using the second plurality of objects.

Abstract: A sputter ion pump including an evacuateable envelope having a chamber, first and second cathodes and an anode disposed in the chamber. The anode can have an outer layer of a non-evaporable getter (NEG) material so as to permit NEG pumping of gases by the anode. In another aspect of the invention, the anode can be formed with spaced-apart first and second sheet portions disposed in juxtaposition to each other and having a plurality of holes extending through the sheets for forming a plurality of anode cells.

Abstract: A sputter ion pump including an evacuateable envelope having a chamber, first and second cathodes and an anode disposed in the chamber. The anode can have an outer layer of a non-evaporable getter (NEG) material so as to permit NEG pumping of gases by the anode. In another aspect of the invention, the anode can be formed with spaced-apart first and second sheet portions disposed in juxtaposition to each other and having a plurality of holes extending through the sheets for forming a plurality of anode cells.

Abstract: A fishing chair mounts directly in the sandy bottom of a relatively shallow surf. A vacuum pump pulls a base pole down into the sand to form a sturdy foundation, even in rough surf conditions. A seat assembly is mounted at the upper end of the base pole. The chair mount may be fabricated from composite materials or plastic, such as PVC, to prevent corrosion. The chair mount is also provided with a foot rest or step that is braced against the base pole. The surf fishing chair is positioned above the waves under normal surf conditions, but also withstands larger wave impacts while safely supporting a fisherman in the seat structure. Other features include adjustable fishing pole holders, a tackle box, a bait box, a bait cutting surface, a fish net holder, and a fish stringer and basket.

Abstract: Ad-hoc timing signals are transferred from a first circuit to a second circuit by determining a system transit delay, detecting an edge of an ad-hoc signal and the frame and timeslot that correspond with the edge, and regenerating the ad-hoc timing signal based on the system transit delay and the frame and timeslot that correspond with the edge.

Abstract: A crew systems module for providing normal ingress to and egress from an aircraft cockpit flight station includes a seat assembly for supporting a crew member and a shell which supports the seat assembly and is pivotally attached to the aircraft adjacent the cockpit. The shell is pivotal from a closed position placing the crew member in a flight-ready position to an ingress/egress position placing the crew member in a generally standing position. The shell in the ingress/egress position extends downward from the cockpit toward the ground. The shell preferably extends downward through the aircraft's wheel well which houses a folding or collapsible landing gear during flight. The crew systems module may be incorporated in a capsule which is separable from the aircraft in an emergency.