Abstract: A weapon delivery system includes a vertical structure defining an opening and a hidden compartment above the opening, and a delivery structure pivoted to a bottom of the vertical structure that when in a closed position generally covers the opening. The delivery structure includes a horizontal top member adapted to support a long gun in a known orientation in the hidden compartment and, when the delivery structure is moved to an open position, causes the long gun to be dropped onto the hands of the person in the known orientation. This allows the person to immediately grasp the long gun in a manner ready to deal with an intruder or danger. The illustrated system is a bed headboard positioned so that a person sleeping on the bed can reach up, press the delivery structure, and drop the long gun into their waiting hands.

Abstract: A cryogenic air separation method and apparatus in which first and second liquid streams are produced. The first liquid stream has a higher oxygen content than air and can consist of a higher pressure distillation column bottoms and the second liquid stream, for instance, air, has a lower oxygen content than the first liquid stream and an argon content no less than the air. The second liquid stream is subcooled through indirect heat exchange with the first liquid stream and both of such streams are introduced into the lower pressure column. The second liquid stream is introduced into the lower pressure column above that point at which the crude liquid oxygen column bottoms or any portion thereof is introduced into the lower pressure column to increase a liquid to vapor ratio below the introduction of the second liquid stream and therefore, reduce the oxygen present within the column overhead.

Abstract: A cryogenic air separation method and apparatus in which first and second liquid streams are produced. The first liquid stream has a higher oxygen content than air and can consist of a higher pressure distillation column bottoms and the second liquid stream, for instance, air, has a lower oxygen content than the first liquid stream and an argon content no less than the air. The second liquid stream is subcooled through indirect heat exchange with the first liquid stream and both of such streams are introduced into the lower pressure column. The second liquid stream is introduced into the lower pressure column above that point at which the crude liquid oxygen column bottoms or any portion thereof is introduced into the lower pressure column to increase a liquid to vapor ratio below the introduction of the second liquid stream and therefore, reduce the oxygen present within the column overhead.

Abstract: A cryogenic air separation method and apparatus in which first and second liquid streams are produced. The first liquid stream has a higher oxygen content than air and can consist of a higher pressure distillation column bottoms and the second liquid stream, for instance, air, has a lower oxygen content than the first liquid stream and an argon content no less than the air. The second liquid stream is subcooled through indirect heat exchange with the first liquid stream and both of such streams are introduced into the lower pressure column. The second liquid stream is introduced into the lower pressure column above that point at which the crude liquid oxygen column bottoms or any portion thereof is introduced into the lower pressure column to increase a liquid to vapor ratio below the introduction of the second liquid stream and therefore, reduce the oxygen present within the column overhead.

Abstract: A method and apparatus for separating air in which an argon refining column of a distillation column system is reboiled with a liquid air stream. The argon refining column further refines crude argon produced by a crude argon column connected to a lower pressure column of the distillation column system. At least one intermediate reflux stream is formed, at least indirectly, from at least part of the liquid air stream, and is introduced into the lower pressure column at a level thereof above where a crude liquid oxygen column bottoms of a higher pressure column of such system is further refined to increase a liquid to vapor ratio below said level and therefore, argon recovery from the argon refining column.

Abstract: A method and apparatus for separating air in which an argon refining column of a distillation column system is reboiled with a liquid air stream. The argon refining column further refines crude argon produced by a crude argon column connected to a lower pressure column of the distillation column system. At least one intermediate reflux stream is formed, at least indirectly, from at least part of the liquid air stream, and is introduced into the lower pressure column at a level thereof above where a crude liquid oxygen column bottoms of a higher pressure column of such system is further refined to increase a liquid to vapor ratio below said level and therefore, argon recovery from the argon refining column.

Abstract: Systems and methods for map-based lottery games are disclosed. According to one particular embodiment, a method for a map-based lottery game may comprise: establishing a game having a gameboard based on a map that includes a plurality of units; receiving from each of a plurality of players a selection of at least one available unit on the gameboard; uniquely associating each said player with the selected at least one unit such that each unit on the gameboard is associated with no more than one of the plurality of players; and conducting a lottery drawing to select at least one first unit from some or all of the plurality of units such that any player associated with said at least one first unit becomes a first winner of a prize.

Abstract: Separation method and apparatus for separating a gaseous mixture, for example, air, in a cryogenic rectification plant in which a compressed stream is divided into subsidiary streams that are extracted from a main heat exchanger of the plant at higher and lower temperatures. The two streams are then combined and expanded in a turboexpander to generate refrigeration for the plant. The flow rates of the two streams are adjusted to control inlet temperature of a turboexpander supplying plant refrigeration and to minimize potential deviation of the turboexpander exhaust from a saturated vapor state. Control of the expansion ratio can advantageously be applied to allow variable liquid production from the rectification plant.

Abstract: A method of calibrating the eye gaze direction of a user, the method including the steps of: (a) monitoring a user's eye gaze direction whilst carrying out a series of predetermined tasks, each of the tasks having an expected subject gaze direction; and (b) correlating the user's eye gaze direction with the expected direction for a statistically significant period of time; (c) calculating, from the correlating step, a series of likely eye gaze direction usage parameters associated with the user.

Abstract: A method and apparatus for separating air in which an argon refining column of a distillation column system is reboiled with a liquid air stream. The argon refining column further refines crude argon produced by a crude argon column connected to a lower pressure column of the distillation column system. At least one intermediate reflux stream is formed, at least indirectly, from at least part of the liquid air stream, and is introduced into the lower pressure column at a level thereof above where a crude liquid oxygen column bottoms of a higher pressure column of such system is further refined to increase a liquid to vapor ratio below said level and therefore, argon recovery from the argon refining column.

Abstract: A method and apparatus for separating air in which an argon refining column of a distillation column system is reboiled with a liquid air stream. The argon refining column further refines crude argon produced by a crude argon column connected to a lower pressure column of the distillation column system. At least one intermediate reflux stream is formed, at least indirectly, from at least part of the liquid air stream, and is introduced into the lower pressure column at a level thereof above where a crude liquid oxygen column bottoms of a higher pressure column of such system is further refined to increase a liquid to vapor ratio below said level and therefore, argon recovery from the argon refining column.

Abstract: A method and apparatus for separating air in which an argon refining column of a distillation column system is reboiled with a liquid air stream. The argon refining column further refines crude argon produced by a crude argon column connected to a lower pressure column of the distillation column system. At least one intermediate reflux stream is formed, at least indirectly, from at least part of the liquid air stream, and is introduced into the lower pressure column at a level thereof above where a crude liquid oxygen column bottoms of a higher pressure column of such system is further refined to increase a liquid to vapor ratio below said level and therefore, argon recovery from the argon refining column.

Abstract: Systems and methods for map-based prize discovery game are disclosed. In one embodiment, a computer-implemented method for map-based prize discovery games may comprise: establishing an online game based on a map that includes a plurality of grid units; placing at least one object in hidden association with one or more predetermined grid units in the map; receiving from a first player at least one token and a selection of at least one available first grid unit; associating the selected at least one first grid unit with the first player; determining whether the first player wins a prize based on the selection of the at least one first grid unit and the placement of the at least one object in hidden association with the one or more predetermined grid units in the map. In another exemplary embodiment, it may be determined whether the first player wins based on a probability algorithm.

Abstract: A method and apparatus for producing an oxygen product in which air is separated in an installation including air separation units having higher and lower pressure columns. A pumped liquid stream generated within the installation, that can be a pumped liquid oxygen stream, is warmed within a main heat exchanger through indirect heat exchange with a compressed air stream to produce a liquid air stream. An impure oxygen stream is rectified within an auxiliary column to produce an oxygen containing stream that is introduced into the lower pressure column of each of the air separation units and intermediate liquid streams, composed of the liquid air stream or another air-like stream, reflux the lower pressure columns and the auxiliary column and optionally the higher pressure column of each of the air separation units.

Abstract: Systems and methods for map-based prize discovery game are disclosed. In one embodiment, a computer-implemented method for map-based prize discovery games may comprise: establishing an online game based on a map that includes a plurality of grid units; placing at least one object in hidden association with one or more predetermined grid units in the map; receiving from a first player at least one token and a selection of at least one available first grid unit; associating the selected at least one first grid unit with the first player; determining whether the first player wins a prize based on the selection of the at least one first grid unit and the placement of the at least one object in hidden association with the one or more predetermined grid units in the map. In another exemplary embodiment, it may be determined whether the first player wins based on a probability algorithm.

Abstract: The rocket launcher includes a launching tube that extends vertically from a flat base. The launching tube is of an undefined length and includes an opening adjacent to the bottom distal end where the flat base attaches. The flat opening includes a hinged door that opens to enable insertion of a rocket or firework therein. The door includes a plurality of small holes thereon so as to enable air to pass there through along with a fuse if applicable. A handle is also attached to and extends from the exterior surface of the launching tube, and enables the rocket launcher to be carried between uses.

Abstract: Air separation method in which air is separated within cryogenic rectification processes conducted in first and second cryogenic air separation plants. The first cryogenic air separation plant is designed to produce an oxygen-rich product stream and the second cryogenic air separation plant is designed to produce an impure oxygen vapor stream. At least part of the impure oxygen vapor stream is introduced into a lower pressure column of the first cryogenic air separation plant and oxygen contained in such stream along with air separated within the first air separation plant is used in producing the oxygen-rich product stream.

Abstract: Systems and methods for second chance games are disclosed. According to one particular embodiment, a computer-implemented method may comprise: receiving information of a first chance game established on a first medium, wherein a play of the first chance game provides an access mechanism for a second chance game; establishing the second chance game on a second medium based at least in part on the information of the first chance game; predetermining, by at least one processor, an outcome of the second chance game by a associating predetermined results with a plurality of game sessions; receiving from a player a request to access the second chance game submitted based on the access mechanism; assigning to the player one of the plurality of game sessions having a predetermined result; and facilitating the player's play of the second chance game to reveal to the player the predetermined result of the assigned game session.

Abstract: Systems and methods for map-based prize discovery game are disclosed. In one embodiment, a computer-implemented method for map-based prize discovery games may comprise: establishing an online game based on a map that includes a plurality of grid units; placing at least one object in hidden association with one or more predetermined grid units in the map; receiving from a first player at least one token and a selection of at least one available first grid unit; associating the selected at least one first grid unit with the first player; determining whether the first player wins a prize based on the selection of the at least one first grid unit and the placement of the at least one object in hidden association with the one or more predetermined grid units in the map. In another exemplary embodiment, it may be determined whether the first player wins based on a probability algorithm.

Abstract: A method of producing a liquid product stream, for example, a liquid nitrogen product stream, at a production rate that is selectively varied. This variation is produced in either a waste expansion or air expansion process by increasing the pressure and flow rate of the feed stream during periods in which a high rate of liquid production is desired without substantially increasing the pressure of the exhaust stream produced by a variable speed turboexpander. This increases the expansion ratio across the turboexpander and therefore the refrigeration supplied to increase liquid production. At the same time, the increase in flow rate prevents a decrease in the performance of the variable speed turboexpander.