Abstract: A parallel spacer for a linear guideway comprises a plurality of parting portions, connecting portions and a retaining portion. Each of the parting portions is a thin member disposed between each pair of neighboring rollers. The connecting portions are employed to connect the parting portions and the retaining portion, and the retaining portion is arranged at a side of the respective rollers and located in an axial direction thereof, the retaining portion is an integral structure for connection with the respective connecting portions.

Abstract: A parallel spacer for a linear guideway comprises a plurality of parting portions, connecting portions and a retaining portion. Each of the parting portions is a thin member disposed between each pair of neighboring rollers. The connecting portions are employed to connect the parting portions and the retaining portion, and the retaining portion is arranged at a side of the respective rollers and located in an axial direction thereof, the retaining portion is an integral structure for connection with the respective connecting portions.

Abstract: A linear motion guide device includes a slider and two end caps attached to side portions of the slider, and two holding assemblies attached to two side legs of the slider and the end caps for forming four endless ball guiding channels and for smoothly receiving four chains of rolling members, the holding assemblies each include two L-shaped holding devices and a retaining device attached to the leg of the slider and the end caps, and the holding devices each include two detachable halves for allowing the holding devices to be easily and quickly molded and for allowing the holding devices to be easily disengaged from the mold devices.

Abstract: A linear motion guide device includes a housing having a chamber formed by two side walls, a casing engaged in the chamber of the housing and having a space formed by two side fences, for slidably receiving an elongate track rail, the casing includes one or more channels formed in each of the side fences and faced toward the side walls of the housing and one or more channels faced toward the track rail. A number of rolling members are received in the channels of the casing, and the casing includes a ball retaining structure having one or more ribs extended into each of the channels for engaging with and for stably retaining the rolling members in the channels of the casing respectively.

Abstract: A linear motion guide device includes a slide having a housing, and two end caps secured to sides of the housing and each including a space aligned with a chamber of the housing, for slidably receiving an elongate track rail. One or more dust shields each includes one end detachably anchored to one of the end caps with such as one or more catches, and the other end detachably anchored to the other end cap with such as one or more latches or fingers, for detachably securing the dust shield to the end caps and the housing without additional fasteners. The end caps and the housing each includes a recess for receiving and seating the dust shield.

Abstract: A parallel spacer for a linear guideway comprises a plurality of parting portions, connecting portions and a retaining portion. Each of the parting portions is a thin member disposed between each pair of neighboring rollers. The connecting portions are employed to connect the parting portions and the retaining portion, and the retaining portion is arranged at a side of the respective rollers and located in an axial direction thereof, the retaining is integrally formed with the respective connecting portions and the parting portions.

Abstract: An automatic compression release mechanism for in an internal combustion engine, includes a camshaft assembly including a cam gear, a cam lobe with a notch positioned along a first side of the gear, a tube passing through the cam gear and aligned with the notch, and a support on a second side of the cam gear. An actuator assembly includes a contoured shaft that extends through the tube and resides in the notch. The actuator assembly is rotatable between two operating orientations and a step formed in the surface of the notch prevents the actuator from becoming disabled during engine shut down.

Abstract: A supportive walker includes a front frame, a rear frame, a pair of limitation plates, and at least one safety lock. The limitation plates are adapted to support relative movement of the front frame and the rear frame between an extended position and a folded position. The safety lock is adapted to selectively lock the front frame and the rear frame. The limitation plates are connected to the front frame and each has a passage defined therethrough to accommodate movement of the rear frame. The safety lock includes a mounting unit and a control unit such that the action of a spring force set outwardly pulls the control unit to move an inner protruding block along sliding slots at side wings of the mounting unit, and to further unlock the front frame and the rear frame so as to extend or fold the front frame and the rear frame.

Abstract: A supportive walker includes a front frame, a rear frame, a pair of limitation plates, and at least one safety means. The limitation plates are adapted to support relative movement of the front frame and the rear frame between an extended position and a folded position. The safety means is adapted to selectively lock the front frame and the rear frame. The limitation plates are connected to the front frame and each has a passage defined therethrough to accommodate movement of the rear frame. The safety lock includes a mounting unit and a control unit such that the action of a spring force set outwardly pulls the control unit to move an inner protruding block along sliding slots at side wings of the mounting unit, and to further unlock the front frame and the rear frame so as to extend or fold the front frame and the rear frame.

Abstract: A thermally enhanced face-up BGA substrate consists of a metal (copper) core, layers, dielectric layers, conductive through-core and build-up vias. It is a new and simple structure with better thermal performance, resulting in lower cost and better reliability. Moreover, high degree of flexibility in choice of material and layer counts as well as layer thickness allows for a wide range of applications in packaging and high density printed circuit board.

Abstract: This invention incorporates a new process and structure for manufacturing castellation via in plastic chip carrier. It allows the creation of uniform side wall contacts in the shape of half-cylinders, devoid of any burrs and power dust particles, which when present in a plastic chip carrier, would prevent reliable electrical contacts by causing either short or open circuits. Thus the invention enables plastic chip carrier as a practical way of replacing traditional ceramic chip carriers.

Abstract: A method of making a thermally enhanced BGA substrate in which a metal (copper) core, has dielectric layers applied to each side thereof and conductive through-core build-up vias are provided. Rigidifying non-conductive dielectric sheets are laminated to the oppositely facing surfaces and then conductive layers are applied to at least one of the rigidifying non-conductive sheets and via connections are made through the dielectric layer(s) to the core conductive layer.

Abstract: A process for forming a burrless castellation for a plastic chip carrier comprising forming one or more through holes in a substrate, plating the through holes with a metal to a thickness ranging from about 2 microns to about 6 microns, routing slots along the line extending through the through holes to produce half cylinder-shaped side-contact surfaces, and plating the half cylinder-shaped side-contact surfaces to a thickness in the range of 15 to 25 microns.

Abstract: A supportive walker includes a front frame, a rear frame with a connection bar connected thereto and a pair of retaining frames connected to the front frame so that the connection bar extends through the two passages of the two retaining frames. A safety device has an engaging portion and an urging device which is biased between the retaining frame and the engaging portion. The engaging portion is releasably engaged with the connection bar by operating the urging device. Therefore, the front frame and the rear frame are expanded or folded securely when the urging device is released. The connection bar of the rear frame is movable in the passages of the retaining frames when the urging device is pressed.

Abstract: A hand brake control mechanism includes a hollow mounting base for coupling to the apparatus with which the hand brake control mechanism is to be used, an operation handle pivoted to the mounting base, an actuating bar pivoted to the mounting base and driven by the operation handle to pull a brake cable being connected thereto, and a link pivoted to the mounting base and acted with the operation handle, wherein the operation handle is turned relative to the mounting base between at least three different positions, and the link controls the relative action between the operation handle and the actuating bar, enabling the brake cable to be controlled by the operation handle to achieve a temporary braking function or a continuous braking function, or to be released from braking operation when the operation handle is not in the state of the aforesaid temporary braking or continuous braking function.

Abstract: A lightly device including a mounting band, on which are bored one or more separate semi-circular grooves, lamp-string sets corresponding to the number of grooves and a plastic cover. The mounting band is made of flexible material so that the respective lamp-string device is shapeable into different patterns, words or the like and the lamp-string device is conveniently cut as required. Further, a flash controlling unit is connected to the lamp-string device to control the flashing of the lamp-string.