Abstract: Methods, systems, and devices for constructing an assembly are disclosed. A construction element with a machine-readable code thereon is provided. A robotic assembler is provided. The robotic assembler includes a code reader, a device for manipulating the construction element, and a controller that receives input from the code reader and provides instructions to the device. The machine-readable code is read on the construction element with the code reader. Instructions are provided to the device derived from the machine-readable code. The construction element is manipulated by the device based on the instructions.

Abstract: The present invention is directed towards a navigation device (12) for receiving navigation data from a portable computing device (11). The navigation device (12) comprises a display (21) and at least one sensor (22, 23, 24) configured to determine a reference direction, the reference direction being a direction relative to the display (21). The navigation device (12) further comprises wireless communication means (25) for wirelessly receiving data relating to a desired bearing from a portable computing device (11) and a processing unit connected to the display (21), the at least one sensor (22, 23, 24) and the wireless communication means (25).

Abstract: The present invention comprises a piston-flush toilet system that may use appreciably less water than commonly used toilets today. Such a piston-flush toilet system may comprise a bowl to accept waste and a chamber comprising a waste inlet connected to the bowl and a waste outlet connected to a sewer system or the like. A piston may be disposed within the chamber capable of sealing the waste inlet.

Abstract: A door release system for a tactical armored vehicle having a vehicle door frame with a receptacle and a vehicle door hinged to the frame is disclosed comprising a pair of releasable hinge bodies carried by the door. The hinge bodies include a head portion for abutting an area of the door frame surrounding the receptacle. A plug portion fits within the frame receptacle, and a lock portion follows the plug portion. An end portion follows the lock portion and is dimensioned smaller than the frame receptacle. A hinge release assembly includes a latch means for locking the hinge bodies in place in the receptacles to prevent removal of the hinge bodies in a locked position. An actuator disengages said means to release said hinge bodies for removal from said door frame and vehicle in a hazardous situation.

Abstract: A door release system for a tactical armored vehicle having a vehicle door frame with a receptacle and a vehicle door hinged to the frame is disclosed comprising a pair of releasable hinge bodies carried by the door. The hinge bodies include a head portion for abutting an area of the door frame surrounding the receptacle. A plug portion fits within the frame receptacle, and a lock portion follows the plug portion. An end portion follows the lock portion and is dimensioned smaller than the frame receptacle. A hinge release assembly includes a latch means for locking the hinge bodies in place in the receptacles to prevent removal of the hinge bodies in a locked position. An actuator disengages said means to release said hinge bodies for removal from said door frame and vehicle in a hazardous situation.

Abstract: The present invention comprises a piston-flush toilet system that may use appreciably less water than commonly used toilets today. Such a piston-flush toilet system may comprise a bowl to accept waste and a chamber comprising a waste inlet connected to the bowl and a waste outlet connected to a sewer system or the like. A piston may be disposed within the chamber capable of sealing the waste inlet.

Abstract: A method for converting lipids to alkyl esters may include receiving a reactant comprising one or more lipids. In some cases, the reactant may include substantial amounts of polar lipids and/or free fatty acids. Some reactants may be derived from photosynthetic organisms, such as algae and/or diatoms. The reactant may be mixed with an alcohol and a catalyst to form a mixture. The mixture may be heated, for example, to a temperature between 50 and 350 degrees Celsius, including between 80 and 220 degrees Celsius. Pressure may be controlled to be between 1 and 200 bar, including between 10 and 100 bar. At least a portion of the reactant may be converted to one or more alkyl esters. A biofuel may include alkyl esters made from lipids according to various methods.