A mixing apparatus (1) for mixing slaughter offal with a preservative agent, the apparatus comprising an offal collection tank (3) with a bottom (4) provided with a discharge opening (5) connectable to a closable discharge, an agitator (8) extending into the offal collection tank, and a pump unit (9) operatively connectable to the discharge, wherein the apparatus further comprises a preservative reservoir (7) mounted on top of the collection tank (3). A collection and preservation system is provided, wherein the addition of preservation agent can be strictly controlled, can easily and quickly be installed and connected when it is to be used. After use, the system is easily removed and cleaned.

A domestic carbonation appliance has a replaceable CO.sub.2 cylinder and accepts a refillable bottle with a removeable cap. The cap can cooperate with a carbonation head of a domestic carbonation device but lacks bayonette or thread features for engaging the carbonation head. The device provides for one-touch carbonation.

A laboratory mixer for mixing a sample and a diluent in a bag. An enclosure defines a mixing chamber, and at least one movable mixing element is retained for mixing the sample and the diluent within the bag. At least one liquid detector is retained relative to the enclosure for detecting liquid leaked from the bag. The sensor can be a capacitive, inductive, or optical sensor. The sensor can be a conductivity sensor with two electrodes shaped like combs and a gap less than or equal to a diameter of a drip of diluent solution. A ledge with a low point can be retained by an access door. The sensor or sensors can be disposed adjacent to the access door, on a mixing element, in direct contact with the bag, or on a tank. An alarm and cessation of operation can be triggered upon a detection of leaked liquid.

A stand mixer includes a base configured for resting on a surface and a mixing head coupled to the base so as to be moveable between a lowered, operative position and a raised, non-use position. A locking mechanism is engageable between the base and the mixing head and has a solenoid having an operative end moveable between a rest condition and an actuated condition and a swing arm pivotably mounted with respect to the solenoid. The swing arm is moveable between a locked position, wherein the swing arm is engaged between the mixing head and the base, and a release position, wherein the swing arm is disengaged from the base. The solenoid acts on a lever end of the swing arm to move the swing arm into the release position when the solenoid is in the actuated condition.

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.

A kneading machine includes a kneading machine frame with a lower portion and a head movable relative to the lower portion between a lower operating position and an upper cleaning position. A kneading bowl is on the lower portion and a drivable kneading tool and a lid closing an opening of the kneading bowl in the operating position are the head. The lid is surrounded on a circumferential side by a first safety ring of a safety device which projects beyond the lid on an underside thereof, and which is movably fastened to the lid. The safety device includes a detector to detect a relative movement between the lid and the first safety ring. The kneading machine frame includes at least two trunnion bearings, each defined by a trunnion and a matching receptacle.