Abstract: An optical fiber coupler and manufacturing apparatus and method thereof aim to provide a loading fixture and a clamping device to fabricate 1×4, 2×4 and 4×4 optical fiber couplers, and also improve driving mechanisms and operation of the packaging station and the entire manufacturing equipment. The 1×4 optical fiber coupler fabricated by means of the invention can split an optical signal more evenly and has a higher production yield. The total size of the equipment is smaller and the structure is less complicated, and the construction cost is lower.

Abstract: A torch device and method for optical fiber couplers is provided to generate a high temperature flame. The apparatus includes air inlets to channel air, and a Venturi tube structure to increase the flow speed of a fuel gas to generate negative pressure to draw in air and accelerate mixing, so that the gas fuel and air are pre-mixed at a desired ratio to produce a high temperature flame. The bare portion of optical fibers may thus be heated rapidly to reach the desired fusion temperature.

Abstract: A retractable drawbar device is disposed in a suitcase. The retractable drawbar device has a hollow positioning seat, a grip disposed in the hollow positioning seat, a pair of outer pipes connected to the hollow positioning seat, a pair of first tubes inserted in the outer pipes, a pair of second tubes inserted in the outer pipes and connected to the first tubes, and a pair of base seats disposed on the outer pipes.

Abstract: A universal angle wheel assembly has a wheel holder plate, a main seat disposed on the wheel holder plate, a cover plate disposed on the main seat, a shaft extending from a top portion of the wheel holder plate, and a pivot pin fastening a wheel in the wheel holder plate. A positioning block is disposed in the main seat defining an upper hollow interior and a lower hollow interior. A guide hole is formed on the positioning block. A through hole is formed on a bottom of the main seat. A coiled spring, a bearing, and a cushion ring are inserted in the lower hollow interior. The shaft passes through the through hole, the cushion ring, the bearing, the coiled spring, and the guide hole. A round hole is formed on the shaft. A first positioning pin passes through the cushion ring and the round hole.

Abstract: An extensible handle assembly has a base seat, two outer pipes, two inner pipes, a press button, a grip, a cover plate, a positioning seat, two inner seats, two gears, two springs, two slide blocks, and two racks. Two sleeves are disposed in the positioning seat. Each sleeve receives the inner pipe. Each inner pipes is inserted in the outer pipe. Two link plate are disposed in the grip. The cover plate is disposed on the grip. A connection rod is inserted in the inner pipe. The connection rod has an upper end hooks the link plate. Each inner pipe has a lower through hole and a bottom slot. Each inner seat is inserted in the inner pipe to receive the gear, and the slide block. Each inner seat has a recess and a channel. Each gear has a center shaft inserted in the recess. Each slide block has a bottom notch engaging with the gear and an upper end hooked by a lower end of the connection rod. Each slide block receives a spring. Each rack is disposed between the inner pipe and the outer pipe.

Abstract: A retractable handle comprises a first half grip, a second half grip coupled with the first half grip, a push button disposed beneath the first half grip and the second half grip, a base seat, first and second outer pipes disposed between the base seat and the first and second half grips, first and second inner pipes inserted in the corresponding first and second outer pipes respectively, a first positioning device disposed in a lower portion of the first inner pipe, a first rod inserted in the first inner pipe to connect the first portioning device and the push button, a second positioning device disposed in a lower portion of the second inner pipe, and a second rod inserted in the second inner pipe to connect the second positioning device and the push button.

Abstract: An extensible drawbar device comprises a grip, a draw plate disposed under the grip transversely, two parallel drawbars connected by the draw plate, two fixed plates receiving the drawbars, and two link plates abutting the drawbars. The grip is connected to two upper ends of the drawbars. A groove is formed on the upper portion of each drawbar. Two ends of the draw plate are inserted in the grooves and connected to the upper ends of the link plates. Two compression springs are disposed between the grip and the draw plate. Caging recesses are formed on the draw plate. A through hole is formed on the grip to receive a push button. The lower end of the push button stably connects a caging block. The lower end of the link plate has a generally ladder-shaped plate which has a first and second steps, a bevel, and a slot. A caging hole is formed at the lower portion of the drawbar. Positioning holes are formed on the upper portion of the fixed plate.

Abstract: A retractable handle assembly for a suitcase and includes a handlebar which has a bar disposed to a top thereof with a spring disposed therebetween, two connecting elements each having one end thereof fixedly to the bar and the other end extending through the handlebar, two second tubes each having one end fixedly to a base in the suitcase and having a plurality of fifth holes defined in an inner side thereof, two first tubes respectively retractably received in the first tube corresponding thereto, a first end of each of the first tubes fixedly to the handlebar and the connecting element received in the first tube corresponding thereto wherein the second end of the connecting element having two bosses extending therefrom and a slot defined between the two bosses, the second end of each of the first tube having a lower hole defined in an inner side thereof and a locking member urgedly extending through the slot, the lower hole of the first tube and one of the fifth holes of the second tube by a resilient elem

Abstract: A drawbar device comprises a first sectional handle, a second sectional handle coupling with the first sectional handle, an upper seat disposed under the sectional handles, a push button disposed in the first and second sectional handles, a first and second control plates connecting two ends of the push button respectively, the upper ends of the first and second control rods connecting the first and second control plates respectively, the lower ends of the first and second control rods connecting a first and second positioning blocks respectively, the first and second positioning blocks inserted in a first and second drawbars respectively to engage with a first and second pinions therein, a first and second outer pipes encasing the first and second drawbars respectively, and a lower seat having two recess holes to receive the lower ends of the corresponding first and second outer pipes respectively.

Abstract: The present invention relates to an adjustable towing handle for a trunk to provide a towing structure that is convenient and practical to use and to increase the convenience for the use of the trunk. The adjustable handle has a support seat, two fixed rods, two adjustable ends, a fixed rod seat, and a control tube, with two pins. The control tube with springs and two pins are attached in the support seat and sealed with a coverplate. The fixed rod extends between the fixing rod seat and the support seat on the back of a trunk or case body. A handle is mounted on the adjustable ends and they are inserted into the two fixed rods. The pins are rotated by the motion of a body on the control tube to retain or release the adjustable rods to effect the adjusting and positioning of the adjustable handle.