Abstract: A method to increase the accuracy of the interpolation of railroad mileposts is disclosed. Based upon image data and data provided in customer track charts, reference points are selected along the track, and their location is verified using GPS data. Once verified, the locations of various points between the reference points are determined using mathematical interpolation.

Abstract: A subsea cementing system that includes a first wiper plug having a central bore releasably connected to a launching mandrel, and a second wiper plug having a central bore releasably connected to the first wiper plug. The system includes a first dart that is adapted to seal the central bore of the second wiper plug. A first increase in pressure releases the second wiper plug from the first wiper plug and a second increase in pressure breaks a burst disc of the first dart allowing cement to flow past the second wiper plug. A second wiper dart is adapted to seal the central bore of the first wiper plug. A third increase in pressure releases the first wiper plug from the launching mandrel. A fourth increase in pressure releases a sealing member from the second dart, which is adapted to seal the central bore of the second wiper plug.

Abstract: An electric brake system for an aircraft as described herein is capable of operating in a normal full power mode, a low power mode, and a sleep mode. The full power mode is supported by the active power supply of the aircraft, while the low power and sleep modes are supported by the backup power supply (e.g., a battery) of the aircraft. The low power mode is activated in response to the detection of certain conditions or operating states where full braking performance is not required. For example, the low power mode can be utilized in connection with towing operations and parking brake adjustment operations. The sleep mode is activated in response to the absence of braking commands for an extended period of time. Various parameters and/or settings of the electric brake system are adjusted, controlled, or regulated during the low power and sleep modes to achieve reduced power consumption relative to the full power mode.

Abstract: A modular magazine for a firearm is disclosed. The magazine has a tower and a magazine body. The tower and magazine body are modular and can be disconnected from each other. When disconnected, the tower can be paired with other magazine bodies. Also, the magazine body may be connected to other suitable towers. Different towers may allow a magazine to connect with a plurality of styles of firearm. Also, a plurality of styles of magazine may be used with a single firearm when connected to a suitable modular tower.

Abstract: A system is provided for collecting data during vacuum molding of a composite part using a mold including an air tight, flexible membrane sealed to a tool. The system comprises a plurality of MEMS sensors coupled with the interior of the mold at different locations over the part. Each of the sensors produces signals related to a process parameter, such as pressure within the bag, that is sensed at the location of the sensor.

Abstract: A virtual sphere provided by an enhanced vision system includes synthetic imagery filling said virtual sphere and a common view window mapped to a dedicated position within the synthetic imagery. Imagery of the line of sight of a user is displayed in the common view window. By providing the common view window, visual communication between all users may be possible. By connecting a virtual user to the enhanced vision system and by displaying the imagery for the line of sight of the virtual user in the common view window, the workload of a human operator may be reduced and the time line of actions may be shortened. The enhanced vision system of the present invention may be used, but is not limited to, in a military aircraft to enhance the situational awareness of the flight crew.

Abstract: The present disclosure is directed to a method comprising: mixing (i) a zwitterionic polymer prepared by inverse emulsion polymerization of at least one monomer Ab comprising a betaine group and optionally one or more nonionic monomers Ba, (ii) a surfactant and (iii) produced water to form a well servicing fluid. The resulting well servicing fluid is introduced into a hydrocarbon well.

Abstract: A seat track assembly an illustrative embodiment of the seat track assembly includes a seat track having an elongated track plate and a pair of generally elongated, parallel, spaced-apart track flanges extending from the track plate. Each of the track flanges is variable in depth. A method of fabricating a seat track assembly is also disclosed.

Abstract: Apparatuses and methods to communicate with a zone below a subsurface safety valve (104, 204) independent of the position of a closure member (106) of the safety valve are disclosed. The apparatuses and methods include deploying a subsurface safety valve (104, 204) to a profile located within a string of production tubing. The subsurface safety valve (104, 204) is in communication with a surface station through an injection conduit (150,152; 250,252) and includes a bypass pathway (144, 244) to inject various fluids to a zone below.

Abstract: A chemical injection system for controlling injection of an injection fluid from an injection fluid supply at a surface location into a production tubing assembly having an upper flow path, a first flow zone, and a second flow zone. The chemical injection system comprises a first fluid injection line configured to inject the injection fluid into the first flow zone and a second fluid injection line configured to inject the injection fluid into the second flow zone. A main fluid supply line is configured to fluidly connect both the first fluid injection line and the second fluid injection line to the injection fluid supply.

Abstract: An umbilical field connect assembly comprising: a first umbilical portion comprising two or more first bundled members chosen from electrical cables, fluid conduits, and optical fibers; a second umbilical portion comprising two or more second bundled members chosen from electrical cables, fluid conduits, and optical fibers; a first housing assembly having a first end coupled to the first umbilical portion and a second end comprising a first coupling plate having a plurality of first couplings chosen from male and female couplings positioned therein, one of the plurality of first couplings being positioned at an end of each of the first bundled members; a second housing assembly having a third end coupled to the second umbilical portion and a fourth end comprising a second coupling plate having a plurality of second couplings chosen from male and female couplings positioned therein, one of the second couplings being positioned at an end of each of the second bundled members.

Abstract: An apparatus includes a display body having a three-dimensionally contoured exterior shape and an interior, hand-receiving cavity extending within the display body. An optional display cover may be mounted on a selected portion of the display body or included in an unassembled kit. The display cover bears a communication attribute and is configured for repeated removal from and replacement on the display body. The apparatus may be configured for use by a person as a hand-mounted display.

Abstract: A compact point of use water purifier intended for both urban and rural areas of developing countries. The purifier is a spigot with an integrated UV radiation source 18 adjacent to an outlet orifice 19 to selectively on demand expose untreated water when the spigot valve 15 is activated to dispense water for consumption. The valve includes a user-activated handle 154 and is configured such that upon initial movement of the handle the ultraviolet radiation source is activated and upon continued movement of the handle the valve is opened. The water purifier is connectable to an electric power source, either 110V/220V AC or 12VDC, via a transformer unit to deliver the appropriate voltage to the spigot unit.

Abstract: A system used to remove multiple isolation plugs from a wellbore. The system is efficient in fluidizing and circulating proppant located below an upper plug resting on top of proppant settled above a lower plug. The system uses a central port of the mill that is in communication with coiled tubing to fluidize and circulate the proppant around the perimeter of the upper plug. Once the proppant has been circulated from underneath the upper plug, the upper plug may mate and rotationally lock with a lower plug set within the wellbore. Upon locking, the system is able to rapidly mill out the upper plug and the lower plug until the lower plug is no longer set within the wellbore. The system provides for the rapid removal of multiple plugs positioned within a wellbore where an amount of proppant is present between the plugs.

Abstract: A shotgun forearm-stock shot shell carrier, for storing multiples of shotgun shells and quickly releasing the same for hand loading into a shotgun magazine or chamber. Improved efficiency and speed of loading shotgun shells may be achieved by a shotgun forearm-stock shot shell carrier, which may comprise one or multiple spring-and-follower-tensioned carrier cavities, integrated into a forearm stock having, in one embodiment, a spring steel shell retainer, such that shot shells inserted into a carrier are securely stacked end-to-end and held until the retainer is physically displaced. In one embodiment, manually displacing a thumb tab, such that it is relieved of providing counter pressure to the spring-and-follower assembly, allows the spring-and-follower assembly to force shot shells out of a carrier's cavity for loading into a shotgun or evacuating the carrier.

Abstract: A dynamic latch to selectively retain a magazine within the magazine port of a long gun. The dynamic latch permits the magazine to be inserted into the magazine port by movement in a single direction eliminating the need to rotate the magazine in order to secure it within the magazine port. The dynamic latch may also eliminate the need to add a magazine well to the receiver of a shotgun or long gun. The dynamic latch may include an outer housing, a piston positioned within the housing, and a spring positioned within the piston. A latch profile on the end of the piston may extend out of an opening in the end of the housing when the spring is in an uncompressed state. The dynamic latch may also be used to connect a tube, such as a magazine tube, to the receiver.

Abstract: A dynamic latch to selectively retain a magazine within the magazine port of a long gun. The dynamic latch permits the magazine to be inserted into the magazine port by movement in a single direction eliminating the need to rotate the magazine in order to secure it within the magazine port. The dynamic latch may include an outer housing, a piston positioned within the housing, and a spring positioned between the outer housing and the piston. A latch profile on the end of the piston may extend out of an opening in the end of a magazine well when the spring is in an uncompressed state.

Abstract: A system for laterally transporting a load. The system uses a sprocket and an integrally formed rack combination. The crowns of the teeth of the rack are rounded so as to engage the lower most troughs of the space between the teeth of the sprocket so that a vertical load may be placed on the system and yet allow lateral translating of the load as the sprocket is rotated.

Abstract: A data recorder includes a first memory element including read/write capability, a second memory element including non-volatile memory and a controller for realizing memory management functions. The controller responds to a predetermined triggering event by writing selected data from the first memory element to the second memory element. The selected data include data units that have been modified after a prior triggering event.

Abstract: A locking tree cap for use on a subsea tree. The tree cap may be installed and retrieved using a remote operated vehicle. The tree cap may include deflectable collet fingers that lock the tree cap to a tree spool. The deflectable collet fingers may be adapted, such as with enlarged heads, to extend into recesses of the tree spool when the tree cap has been landed on the tree spool. The tree cap may be locked onto a tree spool before energizing sealing members within the bores of the subsea tree, thereby protecting the sealing members from damage during the installation of the tree cap onto the tree spool. The tree cap may include soft landing means such as a plastic cap, on the end of stabs to protect the sealing members as the tree cap is landed. The tree cap may include a secondary locking mechanism used to further secure the tree cap to the tree spool.