Abstract:
A crystallized glass with negative coefficient of thermal expansion includes 38 wt % to 64 wt % of silica (SiO2); 30 wt % to 40 wt % of alumina (Al2O3); and 5 wt % to 12 wt % of lithium oxide (Li2O) as a basic component, and further includes more than one component selected from the group consisting of 0.5 wt % to 15 wt % of zirconia (ZrO2), 0.5 wt % to 6.5 wt % of titanium dioxide (TiO2), 0.5 wt % to 4 wt % of phosphorus pentoxide (P2O5), 2 wt % to 5 wt % of magnesium oxide (MgO), and 0 wt % to 5 wt % of magnesium fluoride (MgF2) in addition to the basic components. The crystallized glass may have a high negative coefficient of thermal expansion so that it has an advantage that it can be used as a thermal expansion compensation material according to the temperatures of all kinds of glasses and similar products thereof.
Abstract translation:具有负热膨胀系数的结晶玻璃包括二氧化硅(SiO 2)的38重量%至64重量%。 30重量%至40重量%的氧化铝(Al 2 O 3); 和5重量%〜12重量%的作为碱性成分的氧化锂(Li 2 O),还含有选自0.5重量%〜15重量%的氧化锆(ZrO 2),0.5重量%〜6.5重量% 重量百分比的二氧化钛(TiO 2),0.5重量%至4重量%的五氧化二磷(P 2 O 5),2重量%至5重量%的氧化镁(MgO)和0重量%至5重量%的氟化镁 )除了基本组件。 结晶化玻璃可以具有高的负的热膨胀系数,因此具有根据各种玻璃及其类似产品的温度可以用作热膨胀补偿材料的优点。
Abstract:
A mobile detection system for detecting a fire, gas leak, intruder, or other abnormal condition in a house or an office, and for alerting a central monitor, fire station, police station, or an occupant who is away from the house or office. The mobile detection system comprises a self-propelled movable robot having sensors located thereon. A monitor receives signals from the robot and alerts an authorized user accordingly. An automatic communication control unit includes a telephone transmitting unit for automatically calling an appropriate party in response to a signal from the robot and transmits commands to the robot from an authorized calling party. A radio frequency remote controller for remotely controls the robot. The robot is specifically capable of navigating throughout a house or an office while using its sensors to detect abnormal conditions. In the event that an abnormal condition is detected, the robot initiates communication control unit to alert an appropriate party of the existing abnormal condition. Commands can be provided to the robot either directly through a keyboard on the robot itself, or remotely by way of the radio frequency remote controller or the automatic communication control unit.
Abstract:
The present invention relates to a wiper blade packing case for packing a vehicle wiper blade. The wiper blade packing case comprises: a plate-type lower panel which has a pair of longer sides and a pair of shorter sides, and which is curved in a lateral direction with respect to the lengthwise direction of the surface thereof; a plate-type upper panel which is bendable along one longer side of the lower panel, which has a receiving portion for receiving the wiper blade in cooperation with the lower panel, which is curved in a lateral direction with respect to the lengthwise direction of the surface thereof such that the receiving portion has an elliptical cross-sectional surface, and which covers one side of the lower panel; and a pair of covers, each of which has an elliptical cross-sectional surface corresponding to the cross-sectional surface of the receiving portion, and each of which is bent and extends from each of the shorter sides of the upper panel to close openings formed at both sides of the receiving portion. The present invention simplifies a packing structure, reduces manufacturing costs as well as the volume when packed so as to reduce space in transporting, storage, and display.
Abstract:
A backpack assembly includes a luggage case having a first attachment interface and a backpack having a second attachment interface. The second attachment interface is configured to be mated with the first attachment interface to removably attach the backpack to the luggage case. The luggage case further includes a flap with a third attachment interface that is configured to be mated with the first attachment interface if the backpack is detached from the luggage case.
Abstract:
Disclosed is an orthodontic member, having a tube shape, a hollow polygonal prism shape, a hollow truncated polygonal pyramid shape, a hollow truncated cone shape, or a funnel shape, and including a water-soluble or biodegradable material, wherein the orthodontic member into which a wire is inserted is attached to the teeth, thereby making it simple to perform orthodontic treatment.
Abstract:
A self-propelled robot has a robot body on which a drive wheel is mounted. The drive wheel is connected to a member that can be turned about a vertical axis for steering the robot. A propulsion drive mechanism is mounted on that member for transmitting a propulsion drive to the drive wheel. The propulsion drive mechanism includes a clutch mechanism for disengaging the propulsion drive when the drive wheel encounters excessive resistance to travel. The clutch mechanism includes a spring biased clutch element mounted on an internal spline shaft of the drive wheel.
Abstract:
Disclosed is an orthodontic composite, comprising: an orthodontic member which has a tube shape, a hollow polygonal prism shape, a hollow truncated polygonal pyramid shape, a hollow truncated cone shape, or a funnel shape; and an orthodontic wire that is inserted into the hollow portion of the orthodontic member, wherein the orthodontic member includes a water-soluble or biodegradable material. Thereby, the orthodontic composite of the present invention making it simple to perform orthodontic treatment by attaching the orthodontic composite.
Abstract:
A wiper blade packing case including a plate-type lower panel; a plate-type upper panel; and a pair of covers, each of which has an elliptical cross-sectional surface corresponding to the cross-sectional surface of the receiving portion, and each of which is bent and extends from each of the shorter sides of the upper panel to close openings formed at both sides of the receiving portion.
Abstract:
The present invention relates to a cooking container for an electromagnetic induction heating, in which the cooking container includes: a cooking container main body formed of an aluminum alloy; and a magnetic metal plate attached to an outer bottom surface of the cooking container main body, wherein the magnetic metal plate is formed at a surface thereof with a plurality of grooves having a bowl shape formed by pressing the surface of the magnetic metal plate, in which the bowl-shape groove is formed at a bottom thereof with a boss through-hole, and the cooking container main body has a plurality of bosses passing through boss through-holes of the grooves of the magnetic metal plate, in which the bosses are pressed to fill the bowl-shape grooves, respectively, such that a side surface of the bowl-shape groove of the magnetic metal plate is buried in the cooking container main body.
Abstract:
A multi-purpose cooking vessel and a method of manufacturing the vessel are provided. The vessel includes: a body having a concave shape; and a handle attached to the body. The body includes: a flat bottom plate; and a sidewall formed on the circumference of the bottom plate. The sidewall includes: a lower sidewall which is formed from the circumference of the bottom plate and is extended upwardly and rounded externally; and an upper sidewall which is extended upwardly from the top of the lower sidewall and bent rounded internally toward inside of the body. The top edge is inclined such that the height of the upper sidewall gradually increases from a first side of the body toward a second side of the body located opposite to the first side. An opening portion of the top of the sidewall is formed to have a circle shape.