Abstract: A portable nebulizer includes a nebulizer body including a nozzle hole and an atomizer plate positioned in the nozzle hole, and a dust shield coupled to the nebulizer body and movable relative to the nebulizer body between a dust protection position where the dust shield shields the nozzle hole of the nebulizer body and an open position where the dust shield is kept away from the nozzle hole of the nebulizer body, thus, the dust shield is capable of protecting the nozzle hole of the portable nebulizer against environmental contamination.

Abstract: A biological sample processing device includes a base, a purification unit, a metering unit and a first tube. The purification unit is disposed on the base and is configured to purify a sample. The metering unit is disposed on the base and has an inlet, at least one metering trough and an overflow trough. The inlet is connected to the purification unit via the first tube, and the metering trough is connected between the inlet and the overflow trough. The sample from the purification unit is configured to enter the metering unit through the inlet to be moved toward the metering trough, and to be moved toward the overflow trough after the metering trough is filled with the sample.

Abstract: A mixing vessel includes a vessel body, a clamping device and a stirrer. The vessel body includes a bottom panel and a vessel wall upwardly extended from the border of the bottom panel. The bottom panel defines a top surface, an opposing bottom surface and an opening cut through the top surface and the bottom surface. The clamping device is connected to the bottom panel of the vessel body and clamped on the top surface and the bottom surface of the bottom panel. The stirrer is inserted through the opening of the bottom panel of the vessel body and connected to the clamping device. Thus, subject to fixation of the clamping device to the bottom panel of the vessel body, the mixing vessel presents the bottom panel of the vessel body from deformation due to heat.

Abstract: A drive protection method used in a drive circuit of a DC motor having a maximum tolerance value is disclosed to include the steps of providing a drive current for driving the DC motor and a control signal a for controlling the output level of the drive current, providing a maximum signal level corresponding to the maximum tolerance value of said DC motor, comparing the level of the feedback signal of the DC motor and the maximum signal level, and computing the feedback signal to obtain an operation signal when the level of the feedback signal exceeds the maximum signal level and then stopping the output of the control signal when the level of the operation signal reaches a turn-off level.

Abstract: A drive protection method used in a drive circuit of a DC motor having a maximum tolerance value is disclosed to include the steps of providing a drive current for driving the DC motor and a control signal a for controlling the output level of the drive current, providing a maximum signal level corresponding to the maximum tolerance value of said DC motor, comparing the level of the feedback signal of the DC motor and the maximum signal level, and computing the feedback signal to obtain an operation signal when the level of the feedback signal exceeds the maximum signal level and then stopping the output of the control signal when the level of the operation signal reaches a turn-off level.

Abstract: A water dispenser includes a main body and a water container. The main body has a receiving space and a connecting socket. The water container includes a container body and a water dispenser connector. The container body has a receiving chamber for storing a liquid. The water dispenser connector is connected to the container body and located at a bottom portion of the container body. When the water container is mounted in the receiving space of the main body, with the water dispenser connector connected to the connecting socket of the main body, the liquid in the receiving chamber of the container body can flow through the water dispenser connecter to the connecting socket of the main body. Once the water container is detached from the main body, the water dispenser connector stops the liquid from flowing out of the receiving chamber of the container body.

Abstract: A biological sample processing device includes a base, a purification unit, a metering unit and a first tube. The purification unit is disposed on the base and is configured to purify a sample. The metering unit is disposed on the base and has an inlet, at least one metering trough and an overflow trough. The inlet is connected to the purification unit via the first tube, and the metering trough is connected between the inlet and the overflow trough. The sample from the purification unit is configured to enter the metering unit through the inlet to be moved toward the metering trough, and to be moved toward the overflow trough after the metering trough is filled with the sample.

Abstract: A blender jar assembly consisting of a blender jar, a cover and a vacuum pump is disclosed. The cover includes a cover body including a connection channel and a locking system formed on the cover body within the connection channel, and a sealing plug set detachably connected to the cover body and locked thereto by the locking system to cover the connection channel and having an air hole and an air valve adapted for blocking the air hole. Thus, the sealing plug set can be selectively mounted in the cover body, and the connection channel can be provided for accommodating a measuring cup or for the insertion of a stirring rod.

Abstract: A cutter device of jar includes a shell defining a top, a bottom and an accommodation chamber, a drive shaft inserted through the top and bottom of the shell, one or multiple blades mounted onto the drive shaft and located on the top of the shell, a first oil seal mounted into the accommodation chamber of the shell near the top of the shell and abutted against the periphery of the drive shaft, one or multiple bearings mounted into the accommodation chamber of shell and connected to the shell and the drive shaft, and a second oil seal mounted into the accommodation chamber of the shell near the bottom of the shell and abutted against the periphery of the drive shaft.

Abstract: A portable nebulizer includes a nebulizer body including a nozzle hole and an atomizer plate positioned in the nozzle hole, and a dust shield coupled to the nebulizer body and movable relative to the nebulizer body between a dust protection position where the dust shield shields the nozzle hole of the nebulizer body and an open position where the dust shield is kept away from the nozzle hole of the nebulizer body, thus, the dust shield is capable of protecting the nozzle hole of the portable nebulizer against environmental contamination.

Abstract: A container includes a blending base, an internal wall surface, and an internal bottom surface. The blending base is formed inside the container, extending upward slantwise from a peripheral edge of the internal bottom surface to the internal wall surface. The blending base includes a plurality of turning portions and extended curves at a top edge thereof. The extended curves are linked with the turning portions and cling to the internal wall surface. Thus, the blending base does not adversely affect the appearance of the container and can enhance the blending effect. In addition, the container can be washed and cleaned easily due to the blending base.

Abstract: A stirring knife assembly includes a knife shaft and a knife assembly. The knife assembly is connected to the knife shaft, and includes a first knife and a second knife. The first knife has a body and five blades. The body has an outer periphery and a horizontal surface defined by the outer periphery. The five blades respectively extend outwards from the outer periphery of the body. The second knife is disposed on the body of the first knife. In this way, the stirring knife assembly can efficiently break up food in a stirring cup.