Abstract: The present invention is a laser firearm sight apparatus that has a housing attachable onto the external threads of a firearm muzzle, a light source having at least two lasers emitting laser beams, and an activating mechanism for activating and powering the light source. The housing defines a longitudinal bore for universal attachment onto several different muzzles of different types of firearms of the same caliber barrel while keeping the laser sight accurate within an acceptable range without further adjustment. The lasers emit a beam that is concentric and parallel with the muzzle and bore of the firearm.

Abstract: A server comprises a holding chassis. The holding chassis comprises a front open end and a back open end. A cable interface area is disposed in the back open end. A fan is disposed in the front open end. The fan is configured to force air form the front open end to the back open end. The holding chassis also comprises a computer rack mounting system being configured to hold a plurality of computers. The server also comprises a blade tray being configured to be removably joined to the rack mounting system. The blade tray comprises a computer and a DC to DC power converter. The server also comprises a power supply shelf being configured to hold a power supply for the blade tray and a power supply for the fan. For alternate off-grid operation, the server may also comprises a DC power distribution box being configured to distribute DC power from external sources.

Abstract: A computer-implemented land planning system is designed to generate at least one conceptual fit solution to a user-defined land development problem. The system electronically creates at least one candidate solution to the land development problem. The candidate solution incorporates a number of engineering measurements applicable in development of an undeveloped land site. A fitness function quantitatively evaluates the candidate solution based on its fitness. A heuristic problem-solving strategy manipulates the engineering measurements of the candidate solution to achieve a more quantitatively fit solution to the land development problem. A computer output device outputs to a user documentation illustrating the fit solution to the land development problem.

Abstract: A duct for transporting air within an air handling system. The inventive device includes a plurality of panels coupled together to form a hollow duct. The panels are sealed along interior surfaces thereof by coextensive foil webs. The panels can be formed from a single blank and subsequently folded into an operative orientation for use in a heating and air conditioning installation.