Abstract: An over-current protection device includes a first metal layer, a second metal layer and a heat-sensitive layer laminated therebetween. The heat-sensitive layer exhibits a positive temperature coefficient (PTC) characteristic and includes a first polymer and a conductive filler. The first polymer consists of polyvinylidene difluoride (PVDF), and PVDF exists in different phases such as ?-PVDF, ?-PVDF and ?-PVDF. The total amount of ?-PVDF, ?-PVDF and ?-PVDF is calculated as 100%, and the amount of ?-PVDF accounts for 48% to 55%. The conductive filler has a metal-ceramic compound.

Abstract: An over-current protection device includes a first metal layer, a second metal layer and a heat-sensitive layer laminated therebetween. The heat-sensitive layer exhibits a positive temperature coefficient (PTC) characteristic and includes a first polymer and a conductive filler. The first polymer consists of polyvinylidene difluoride (PVDF), and PVDF exists in different phases such as ?-PVDF, ?-PVDF and ?-PVDF. The total amount of ?-PVDF, ?-PVDF and ?-PVDF is calculated as 100%, and the amount of ?-PVDF accounts for 33% to 42%.

Abstract: An improved metal drinking straw is provided. The improved metal drinking straw includes an outer wall provided with a rough surface, an inner wall formed as a smooth mirror surface, and one end formed as a guiding structure. The guiding structure includes at least one first recess and at least one first protrusion. The first recess and the first protrusion are alternately connected.

Abstract: An improved metal drinking straw is provided. The improved metal drinking straw includes an outer wall provided with a rough surface, an inner wall formed as a smooth mirror surface, and one end formed as a guiding structure. The guiding structure includes at least one first recess and at least one first protrusion. The first recess and the first protrusion are alternately connected.

Abstract: A dinnerware apparatus has an elongated solid storage tube having a through hole therein, a flexible cleaning brush retractably positioned in the through hole of the storage tube, and a connector affixed to an end of the brush holder. The flexible cleaning brush has an elongated flexible brush holder and a brushing portion affixed to an end of the brush holder. The connector has a service end and a mating end. The service end has a shape of a knife, fork, spoon, or a chopstick head. The mating end has a tight limiting section embedded at one end of the storage tube.

Abstract: A dinnerware with multifunctional configurations has a solid storage tube, designed into an extension tube made of stainless steel and a flexible cleaning brush set into the through hole of the solid storage tube in a retractable state. The flexible cleaning brush has a flexible long brush holder and a brushing portion mated at one end of said long brush holder. A dinnerware type connector is set at one end of the long brush holder opposite to the brushing portion. The service end contains either of a knife, fork, spoon or chopsticks head. The solid storage tube can be used separately as a common drinking pipette. When said solid cleaning brush is fully stretched into the through hole of the solid storage tube, the connector can be embedded into the end of said solid storage tube to form such dinnerware as knife, chopsticks, fork or soup spoon.

Abstract: A stainless steel beverage pipette, exclusively used for having a drink, has a solid body made of stainless steel. The external diameter of said solid body is 5 mm-15 mm. A through-hole is formed within the solid body. A top opening and a bottom opening with flat notch are set at both ends of said solid body. The inner and outer edges of said top and bottom openings are fitted with filleted corners, such that the cross sections of said top and bottom openings are of a semi-circular shape. The stainless steel beverage pipette is free of plasticizers ingredients, and is characterized by reusability, excellent durability and simple structure, and can thoroughly resolve the problems of the conventional plastic pipette, and improve the hygiene and food security with better applicability.

Abstract: A blood sampling needle has a shell, a trigger seat, a needle stand, an elastic resetter and a safety switching member. The shell is provided with inner wall, retaining space, needle outlet and insertion end. A through-flange is formed into the shell. The through-flange and inner wall form a release groove with a tapered end-face. The trigger seat is mounted into the retaining space in a moveable state. The trigger seat has a control end and a rod. An axial chamber is opened on the rod so that two elastic release blades are formed on the rod, and also accommodated correspondingly into the release groove. An abutting bevel edge is formed at the bottom of the elastic release blade, and mated with the tapered end-face of the release groove in an oblique surface. The present invention saves structural members, reduces fabrication cost with better safety and applicability.

Abstract: A rotational safety syringe includes front and rear barrels rotatable with respect to each other for moving a needle holder towards the rear barrel and compressing a spring to separate a protective cover. The needle holder is fixed by an elastic press button on the needle holder and a press opening on the rear barrel. After a through hole of the front barrel is aligned with a using position, the elastic press button can be pressed to release the needle holder, and the spring can eject the needle holder towards the through hole of the front barrel to extend the needle out from the through hole of the front barrel and pierce the needle into the using position. When the spring is released, the needle holder and needle are pulled back to hide the needle into the front and rear barrels to prevent the used needle from being touched.

Abstract: A blood sampling needle has a shell, a trigger seat, a needle stand, an elastic resetter and a safety switching member. The shell is provided with inner wall, retaining space, needle outlet and insertion end. A through-flange is formed into the shell. The through-flange and inner wall form a release groove with a tapered end-face. The trigger seat is mounted into the retaining space in a moveable state. The trigger seat has a control end and a rod. An axial chamber is opened on the rod so that two elastic release blades are formed on the rod, and also accommodated correspondingly into the release groove. An abutting bevel edge is formed at the bottom of the elastic release blade, and mated with the tapered end-face of the release groove in an oblique surface. The present invention saves structural members, reduces fabrication cost with better safety and applicability.