Abstract: A sensor frame assembly that includes a plurality of extrusion members removeably attached to each other defining a walk through frame assembly. The extrusion members have an outer profile and a hollow interior space. The extrusion members include a top portion coupled to separated side portions. Each of the plurality of extrusion members includes a length that is less than four feet when disassembled. Each of the plurality of extrusion members includes a rectangular sectional outer profile wherein one corner of the rectangular profile is truncated at an angle forming a mounting surface. The mounting surface is angled relative to an orthogonal side of the outer profile.

Abstract: A client device wirelessly receives data including (i) a remaining lifetime and (ii) a charge state of a battery. The data is determined by a battery diagnostic device including a battery gauge, operatively connected to the battery, which measures a stored energy in the battery, and at least one transceiver operatively connected to the battery gauge through a microcontroller. The client device wirelessly relays the received data to a computer system connected to a network to enable the computer system, executing a battery analysis program, to determine an expected charge state of the battery at a future time.

Abstract: Apparatus 10 for a skateboard deck 14 connected to a skateboard carriage 22 by means of a rotative mechanism 24 positioned between the deck and carriage. The carriage 22 is comprised of a platform having the trucks and wheels 18 mounted thereunder with fasteners fixedly positioning a bearing insert 34 and carriage retaining ring 32 to the top side of the platform. The deck 14 has a friction ring 30 fixed to the underside with fasteners 28 passing through the deck and friction ring into the carriage retaining ring thereby enabling the deck to rotate relative to the carriage 22. Additionally fastened to the underside of the deck 14 are pivot brakes or segments 16 positioned on opposing ends of the deck 14 and within the perimeter of the carriage platform. Once the carriage platform 22 and deck 14 are relatively aligned, a user 12 shifts their weight causing the segments 16 to engage the carriage ending or preventing any further rotation of the deck relative to the carriage.