Abstract: A roller skate has a frame formed of a short length of sturdy, generally rectangular channel material having two opposed side walls and a sole plate or floor extending therebetween. A large diameter wheel is secured to each end of each side wall, to define a widely spaced rectangular wheel array providing a stable skate platform. The high attachment of the large diameter wheels places the sole plate immediately adjacent the underlying surface when the wheels are resting on that surface, for greater stability. Instep and heel straps extended from single central attachment points along each side wall, with the present skate being essentially longitudinally and laterally symmetrical. Provision may be made for vertical and/or lateral adjustment of the wheels relative to the skate frame, if so desired.

Abstract: A light source arrangement includes an electric input adapter for electrically connecting with a power source and a light head including a supporting frame and a luminary unit. The supporting frame has a dissipating end and a peripheral surface provided thereon. The luminary unit includes a circuit board provided on the peripheral surface of the supporting frame and electrically connected with the electric input adapter, and at least a luminary element, having two terminal electrodes, which is supported by the supporting frame and electrically connected to the circuit board for emitting light when the terminal electrodes are electrified. Therefore, the heat generated by the luminary element directly dissipates at the dissipating end of the supporting frame so as to prevent the light head from overheating.

Abstract: An electrical twist vehicle includes a transmission system which enables a rider to selectively switch between electrically operated mode and manually operated mode for two rear wheels of the electrical twist vehicle by shifting a control member into a predefined position. In electrically operated mode, the two rear wheels of the electrical twist vehicle are driven by an electrical driving device whereas in manually operated mode, the two rear wheels of the electrical twist vehicle are set to free rotating. The transmission system includes a driving wheel connected to an electrical driving device, a driven wheel connected to a rear wheels axle, a transmission belt connecting the driving and driven wheel, and a biasing wheel wherein in electrically operated mode.

Abstract: A hygiene device includes two cleansing arrangements for carrying two different kinds of cleansing solutions. Each of the cleansing arrangements includes a container body having a liquid reservoir for receiving the corresponding cleansing solution therein and an opening for communicating the liquid reservoir with outside, a pumping unit, having a dispensing nozzle, detachably attached to the container body to sealedly cover the opening and arranged to pump the cleansing solution from the liquid reservoir towards the dispensing nozzle, and a first hands-free actuating unit arranged to actuate the pumping unit for dispensing a predetermined amount of the corresponding cleansing solution on a wiping medium via the dispensing nozzle. Therefore, the user is able to dispense the cleansing solution from the cleansing arrangement to moisture the wiping medium without hand contacting operation, so as to prevent the cleansing solution from being polluted by the user's hand.

Abstract: A foldable furniture incorporates with a foldable side support arrangement which includes a pair of side supporting units pivotally connected to two side frame of a foldable frame of the foldable furniture and a pair of retaining units coupling with the side supporting units respectively to reinforce the side supporting units pivotally extended to retain the first and second side frame legs of the side frame in position when the foldable frame is unfolded to stretch out wherein two side edge portions of a tension fabric are substantially supported by the two side supporting units respectively. Therefore, the foldable side supporting arrangement is capable of substantially increasing the supporting area of tension fabric to more evenly distribute and support the downward force and stress applied on the tension fabric.

Abstract: A photoelectric structure for surface mounting on a circuit board having a plurality of insertion holes includes at least a pair of fixation pins integrally extended downwards from a periphery of the mounting photoelectric element, and a pair of bended connections integrally extended downwards from a periphery of the mounting photoelectric element such that they are connected with the circuit board by welding, so as to facilitate the other pair of fixation pins to be inserted into the insertion holes of the circuit board for locating securely the photoelectric element for use in Surface Mount Device, SMD, and for enhancing effectively the position of the detection point as well as the degree of precision of the light emitting signal.

Abstract: A system for universal guidance and control of automated machines incorporates with an IMU (Initial Measuring Unit) installed at an end effector of a motion element of an automated machine, fast-response feedback control for both position and angle servo-loops (for the end effector) greatly decreases the operational time needed to complete a preplanned trajectory. In addition, the closed-control loop design provides stabilization and isolation of the end effector from external disturbances. This unique navigation solution is based upon the uses of a set of equations performing an open loop computation with the inertial data as its input. This formulation of equations requires a periodic update of the open loop solution in order to bind the growth of system errors. The source of this update is the automated machine position measurement derived from the mechanical sensors in the system.

Abstract: A foldable frame includes a supporting frame, which is adapted for supporting a boundary shelter thereto, including a pair of first supporting arms in a parallel manner and a pair of second supporting arms connected to the first supporting arms end to end respectively, a pair of U-shaped folding arms each having two upper ends pivotally connected to the two first supporting arms respectively, and a securing device attached between each bottom portion of the folding arms and each of the second supporting arms of the supporting frame to retain an unfolded distance between the two bottom portions of the folding arms.

Abstract: An earplug type earphone without impulse noise and surroundings blockade includes an earphone housing having a sound chamber inside thereof and a loudspeaker mounted therein, wherein a plurality of sound outlet meshes is provided on the front end of the earphone housing. A proper distance is given between the front end of the earphone housing and the loudspeaker mounted therein. A plurality of sound inlet meshes is provided on and encircled the earphone housing within the proper distance. The lower impulse noise output end with respect to two output ends of the loudspeaker is arranged to face to the sound outlet meshes. Therefore, the earphone can prevent not only the impulse noise directly impact to the middle ear but also the damage of the middle ear and the cause of conductive hearing loss.

Abstract: A high frequency super regenerative direct detector includes a power supply and a signal detecting circuit arrangement electrically connected thereto. The signal detecting circuit arrangement, which is a transistor control system, includes a high frequency by-pass circuit, a LC tank circuit configured to be tuned at a pre-tuned frequency to receive an incoming signal to generate an oscillator frequency, ranging from 850 MHz to 960 MHz, a quenching circuit generating a quenching frequency, and a transistor circuit device configured to incorporate oscillator frequency into the quenching frequency in such a manner that when the incoming signal matches the pre-tuned frequency, a timing to achieve a saturated level of the quenching frequency is faster than no signal period, and a modulation frequency of the incoming signal is detected out from the signal detecting circuit arrangement.

Abstract: A foldable chair includes a foldable chair frame, a seat frame, and a detachable seat arrangement. The seat frame includes a fabric supporting frame and a seat fabric supported thereon. The fabric supporting frame includes a pair of semi-circular seat supporting bars pivotally and foldably connected together to form a complete fabric supporting frame. The detachable seat arrangement includes a pair of fabric frame holders securely mounted on the upper attaching portions of the rear supporting legs respectively, and a pair of securing members provided at the seat portion of the seat fabric for detachably mounting the fabric supporting frame onto the front supporting frame. Moreover, each of the fabric frame holders has an engaging slot formed on an upper portion thereof for engaging with the frame connecting portions of the fabric supporting frame.

Abstract: A method of transmitting position data via cellular communication system includes the steps of receiving position data from a position data producer such as a GPS, an INS, or a GPS/INS integrated system, attaching the position data to a location registration data stream, and sending the position data along with the location registration data to a base station. This method takes advantages of the existing location updating procedure in a cellular network system to transmit precision position data of a mobile station. It does not need a dialing up to transmit position data. By utilizing this method, the position data of the mobile station can be delivered to the base station or cellular network whenever the mobile station is powered on.

Abstract: A stroller, which incorporates with a car seat fastening arrangement, includes a stroller frame for substantially supporting a car seat thereon. The car seat fastening arrangement includes a holding belt extended from the stroller frame and a connecting unit securely locked up the two ends of the holding belt to form a holding loop, having a predetermined length, for encirclingly holding the car seat on the stroller frame through the fastening slot. Therefore, the car seat is securely supported on the stroller frame and firmly fastened by the two ends of the holding belt connecting with each other through the fastening slot of the car seat.

Abstract: A speaker spider arrangement includes a speaker spider and an integral lead wire arrangement which includes at least a pair of lead wires and an attachment member for attaching attachment portions of the lead wires on one side surface of the speaker spider so as to ensure the attachment portions of the lead wires being spacedly extended between an inner rim and an outer rim of the speaker spider and to integrate with the speaker spider to move simultaneously. Thereby, the integral lead wire arrangement provides the speaker spider with an enhanced durability, higher sound quality and improved safety, so as to enable a speaker to be manufactured by less steps in a lower cost while achieving a higher quality in comparison with the conventional speaker structure.

Abstract: A detachable mounting arrangement, for a stroller front guard adapted to transversely extend from a seat frame of the stroller to form a front boundary thereof, includes two joint members provided at two ends of the front guard for detachably mounting on the seat frame, wherein each of the joint members has a base joint having two supporting walls to mounted on the seat frame. Each joint member further has at least a locking slot provided on one of the supporting walls and has an opening formed at an edge of the respective supporting wall. Two locking shanks, which are provided on two sides of the seat frame, each has a neck portion protruded from the seat frame and arranged to slide into the locking slot so as to lock up the joint member on the seat frame.

Abstract: A piezoelectric lighter includes a gas emission arrangement including a pair of jet nozzles and a gas emitting tube communicating with a liquefied gas storage respectively, a gas releasable valve extended from the liquefied gas storage for controlling a flow of gas to the gas emission arrangement, a pair of gas ejecting conduits connected from the gas releasable valve to the two jet nozzles respectively, and a gas ejecting duct connected from the gas releasable valve to the gas emitting tube. Therefore, the piezoelectric lighter is adapted for selectively producing either a pair of jet flames at the same time when the gas discharged to the two jet nozzles through the gas ejecting conduits or producing a visible flame when the gas discharged to the gas emitting tube through the gas ejecting duct.

Abstract: A positioning and navigation method and system thereof can substantially solve the problems encountered in global positioning system-only and inertial navigation system-only, such as loss of global positioning satellite signal, sensibility to jamming and spoofing, and inertial solution's drift over time, in which the velocity and acceleration from an inertial navigation processor and an attitude and heading solution from an AHRS processor are used to aid the code and carrier phase tracking of the global positioning system satellite signals, so as to enhance the performance of the global positioning and inertial integration system, even in heavy jamming and high dynamic environments and when the GPS satellite signals are not available.