A mixing system has a single-use container (1) with flexible walls and a mixing device. The mixing device has at least one encapsulated drive (5) and a mixer shaft (3). The drive (5) can be disposed of after use together with the mixer shaft (3) and the single-use container (1). The mixing system can be used in biotechnology and the pharmaceutical industry for mixing liquids, dissolving solids or cultivating cells and microorganisms.

An auger protection system used in a stirring system is disclosed. According to a first preferred embodiment, an auger protection system is provided which protects augers on a stirring machine from breaking or bending. Accordingly to this first preferred embodiment, the auger protection system includes a switch which is enclosed in a housing and connected to a timer which supplies power to a gear motor that propels the unit around a silo. Preferably, the housing for the holding switch is attached pivotally to the structure on which the down auger is connected. Additionally, the auger protection system preferably further includes a spring which is connected to a pivot assembly and which extends horizontally and comes in contact with the down auger at one end.

A valve for a plumbing system has a housing with an inlet and an outlet and a valve body movable in the housing between a throttle position with a decreased a flow cross section and reduced flow between the inlet and outlet and an open position with a large flow cross section and free flow between the inlet and outlet. Structure in the valve body applies hydraulic pressure from the inlet or outlet to the valve body to shift same into the throttle position when a pressure differential between the inlet and the outlet exceeds a specified value and into the open position in the absence of a pressure differential between the inlet and the outlet.

A bathwater circulating system has a pump operable to draw fluid in at an intake port and expel it under pressure at an output port. Water- and air-supply conduits feed water and air to the intake port at a rate determined by a flow-restricting air-intake valve so that the pump mixes the water and the air, pressurizes the mixture and thereby dissolves the air in the water, and expels the air/water mixture at the output port. A pressure-reducing valve is connected by an output conduit that extends from the output port to the pressure relief valve and conducts the water/air-bubble mixture from the pump to the pressure-reducing valve without separation of the air from the water and such that the mixture is at least partially depressurized at the pressure-reducing valve such that the air forms microbubbles in the water.

A mixing apparatus which can reliably prevent an auxiliary liquid from being unintentionally mixed into a main unit even when a failure occurs in a switching device, and which can prevent the switching device or an auxiliary flow route from being damaged even when a pressurizing device malfunctions due to the failure. The mixing apparatus includes a pipe circulating dilution water; a pipe circulating a disinfecting solution; a pressurizing pump circulating the disinfecting solution in the pipe toward the pipe; and a check valve capable of optionally turning on and off the pipe. The mixing apparatus further includes a discharge flow route which consists of a flow route branched from between the check valve and the pressurizing pump in the pipe, and which can discharge the dilution water or the disinfecting solution; and an electromagnetic valve which can control the flow route between the check valve and the pressurizing pump in the pipe to have a pressure lower than that of the pipe when not mixing the disinfecting solution with the dilution water.

A device for storing and mixing bone cement components. The device includes a housing, a safety device, and a vacuum indicator. The housing defines a mixing chamber configured to store a first bone cement component therein. In a first safety position, the safety device prevents contact between the first bone cement component and a second bone cement component in the mixing chamber. In a second safety position, the safety device permits contact between the first and second bone cement components in the mixing chamber. The vacuum indicator restricts movement of the safety device from the first safety position to the second safety position when in a first vacuum indicator position. The vacuum indicator permits movement of the safety device from the first safety position to the second safety position when in a second vacuum indicator position.

A blender collar assembly including a plunger moveable between a lower position where a blade assembly is prevented from coupling with a motor, and an upper position where the blade assembly is able to couple with the motor. The plunger includes an arm extending upward and having a u-shaped feature, and a protrusion associated with the u-shaped feature. The assembly further includes a concentric interlock ring rotating responsive to rotation of a blender jar. The interlock ring including a first portion engaging the u-shaped feature preventing the plunger from moving upward, a second gap portion not engaging the u-shaped feature enabling the plunger to move upward and downward within the collar, and a key engaging a protrusion of the blender jar as the plunger moves upward preventing the interlock ring from rotating while the second portion is rotationally aligned with the u-shaped feature.

The invention relates to a stirring device for wastewater includes a drive device having a drive shaft extending vertically therefrom in the assembled state, a stirring body mounted on the drive shaft, and a safety bearing, in which a free end of the drive shaft is rotatably held. In order to avoid damage to the stirring device, in accordance with the invention a slide sleeve to be mounted on the free end of the drive shaft, and for a device for detecting a state of wear of the slide sleeve is provided.

A hand-held blender includes a housing and a body. The body is disposed in the housing, and the body comprises a microprocessor, a pressure sensor, a pressure button, a driving device, a coupling, a stirring rod, a power switch and a safety protection device; the coupling is connected with the stirring rod and driving device, respectively; the microprocessor is connected with the driving device. The safety protection device includes a safety switch and a security processing chip; the security processing chip is connected with the safety switch and the microprocessor, respectively; the microprocessor unlocks or locks the whole circuit of the hand-held blender only after receiving the signal of unlocking or locking from the security processing chip; the pressure sensor is connected with the pressure button and the microprocessor, respectively; the microprocessor controls the voltage provided to the driving device in accordance with the pressure applied on the pressure button.

A blending appliance includes a housing with a jar receiving area defined between an upper housing and a support base. A blender jar includes a base portion and a receptacle portion, and is configured to be laterally received within the jar receiving area of the housing. A magnetic coupling system includes an upper magnetic coupler disposed in the base portion of the blender jar and a lower magnetic coupler disposed in the support base of the housing. The upper and lower magnetic couplers are magnetically coupled to one another for driving a blade assembly disposed in the receptacle portion of the blender jar. A brake mechanism is disposed on the upper magnetic coupler and is configured to stop rotation of the upper magnetic coupler when the blender jar is removed from the jar receiving area.