Abstract: A cart and track arrangement includes a track unit having a straight track and a curved track, the straight track having an oblique bearing portion, the curved track having a horizontal bearing portion, and a cart having a cart frame and a wheel set, the wheel set having a wheel axle arranged in parallel to the oblique bearing portion of the straight track and a wheel pivotally mounted on the wheel axle, the wheel having a first tread disposed in parallel to the wheel axle for rotatably supporting on the oblique bearing portion of the straight track and a second tread for rotatably supporting on the horizontal bearing portion of the curved track.

Abstract: A steering column assembly for a vehicle comprising an intermediate assembly which is slideably disposed within a lower assembly so that the intermediate assembly may be moved between an extended and a retracted position. Further, the steering column assembly contains an upper assembly which is pivotally coupled to one end of the intermediate assembly so as to permit the upper assembly to move about a pivot point. The upper assembly further contains a locking assembly which is interconnected between the lower assembly, the intermediate assembly and the upper assembly so that the lower, intermediate and upper assemblies may be locked relative to each other in a selected position when the locking assembly is placed and retained in a first position and permitted to move when said locking assembly is placed and retained in a second position.

Abstract: A wheel covering system for attachment to a vehicle axle, in which the axle has a plurality of externally threaded lugs for attaching a wheel. The system includes a mounting member configured to be removably attached to the axle. A plurality of combination nuts, each nut including a bore with internal threads configured to mate with external threads on one of the lugs, being configured to attach the wheel to the axle; an external hexagonal portion for torquing the combination nut; an external threaded portion configured to pass through one of the holes in the mounting member, and also configured to receive a nut for attaching the mounting member to the combination nut.

Abstract: A wheel covering system is disclosed having a first external cover element and a second internal cover element screwed to the first element. The wheel covering system is connected to an hub of a large vehicle such as a truck without relying on lugs provided on the hub for connecting the wheel to the hub. The connection is achieved by relying on bolts used to attach a hub cap (or axle cover) to the axle, without eliminating the hub cap (or axle cover), and at the same time providing a sturdy and robust connection capable of withstanding forces expected to be applied to a wheel cover during its lifetime.

Abstract: A high-power LED package includes a thermally conductive substrate, a plurality of electric contact pins, and at least one high-power LED. The thermally conductive substrate has a circuit board, a metal plate, and a connecting member connected between the circuit board and the metal plate. The substrate is provided with a plurality of through holes running through the circuit board and the metal plate. The electric contact pins are received in the respective through holes and partially extending out of the through holes. The high-power LED is mounted on the metal plate and electrically connected to the circuit board by means of a plurality of metal wires. Therefore, the metal plate having preferable thermal conductivity can effectively dissipate the heat generated by the high-power LED.

Abstract: A wheel covering system is disclosed having a first external cover element and a second internal cover element screwed to the first element. The wheel covering system is connected to an hub of a large vehicle such as a truck without relying on lugs provided on the hub for connecting the wheel to the hub. The connection is achieved by relying on bolts used to attach a hub cap (or axle cover) to the axle, without eliminating the hub cap (or axle cover). Provision is made for adjusting the length of the connector or mounting member.

Abstract: An LED lamp assembly includes a reflection cup, a lamp holder and an LED lamp. The reflection cup has a bottom wall with two through holes for insertion of electric wires and at least one locating hole, and a periphery wall defined with the bottom wall a recessed chamber. The lamp holder is mounted on the bottom wall of the reflection cup and located inside the recessed chamber. The lamp holder has a top wall, a peripheral wall extending from the top wall, and at least one mounting leg extending from the periphery wall of the lamp holder and coupled to the at least one locating hole of the reflection cup. The LED lamp is disposed between the top and periphery walls of the lamp holder and provided with two exposed conducting terminals corresponding to the two through holes of the reflection cup for connection with the electric wires.