A mixing assembly includes a mixer having a mixer housing, a mixing element having a first and second ends, first and second entry openings arranged at the first end and an outlet opening arranged at the second end of the mixer, a cartridge including a head part having first and second outlet openings, a connection device to connect the mixer to the head part of the cartridge such that the first and second outlet openings of the cartridge align with the inlet first and second openings of the mixer, the connection device configured as a bayonet connection, and an alignment element to align the mixer relative to the head part, the alignment element comprising an alignment projection and a corresponding alignment recess to engage with one another.

A mixer includes a mixer housing, a mixing element, an alignment element and a connection element. The mixing element has a first end and a second end opposite the first end, a longitudinal axis extending therebetween, first and second entry openings arranged at the first end and an outlet opening arranged at the second end, the mixing element further being arranged at least partly within the mixer housing. The alignment element aligns the mixer at a predetermined angle relative to the cartridge. The connection element connects the mixer to a cartridge by a form-fitting connection, and the connection element is a click connection or a snap lock connection.

A mixer includes a mixer housing, a mixing element, an alignment element and a connection element. The mixing element has a first end and a second end opposite the first end, a longitudinal axis extending therebetween, first and second entry openings arranged at the first end and an outlet opening arranged at the second end, the mixing element further being arranged at least partly within the mixer housing. The alignment element aligns the mixer at a predetermined angle relative to the cartridge. The connection element connects the mixer to a cartridge by a form-fitting connection, and the connection element is a click connection or a snap lock connection.

A mixer assembly, for mixing an injection medium with the exhaust gas of an internal combustion engine, including an exhaust gas guide portion having a first threaded hole pattern and an injector attachable to the exhaust gas guide portion and having a mounting hole pattern. The first threaded hole pattern is complementary to the mounting hole pattern. The exhaust gas guide portion has a second threaded hole pattern. The second threaded hole pattern is complementary to the mounting hole pattern.

A mixer assembly, for mixing an injection medium with the exhaust gas of an internal combustion engine, including an exhaust gas guide portion having a first threaded hole pattern and an injector attachable to the exhaust gas guide portion and having a mounting hole pattern. The first threaded hole pattern is complementary to the mounting hole pattern. The exhaust gas guide portion has a second threaded hole pattern. The second threaded hole pattern is complementary to the mounting hole pattern.

A fluid mixing system includes a flexible bag having a first end, an opposing second end, and an interior surface bounding a compartment; a retainer coupled to the second end of the flexible bag, the retainer having a retention cavity formed thereon that communicates with the compartment of the flexible bag; and an elongated member having a first end rotatably coupled to the first end of the flexible bag and an opposing second end freely disposed within the retention cavity of the retainer so that the second end of the elongated member can rotate within the retention cavity relative to the retainer.

A fluid mixing system includes a flexible bag having a first end, an opposing second end, and an interior surface bounding a compartment; a retainer coupled to the second end of the flexible bag, the retainer having a retention cavity formed thereon that communicates with the compartment of the flexible bag; and an elongated member having a first end rotatably coupled to the first end of the flexible bag and an opposing second end freely disposed within the retention cavity of the retainer so that the second end of the elongated member can rotate within the retention cavity relative to the retainer.

A tool for resisting rotation of a bucket of the type having a handle carried on a support wire is provided. The tool includes a handle engaging portion configured for attaching or engaging with the handle of the bucket, and a step plate coupled with the handle engaging portion and configured for resting against a surface of the ground. The handle engaging portion and the step engaging portion are configured to extend at generally right angles from each other. In operation, the handle engaging portion is engaged with the handle of the bucket, and the step plate is positioned on the ground, and a user steps on the step plate during mixing of materials contained within the bucket.

A tool for resisting rotation of a bucket of the type having a handle carried on a support wire is provided. The tool includes a handle engaging portion configured for attaching or engaging with the handle of the bucket, and a step plate coupled with the handle engaging portion and configured for resting against a surface of the ground. The handle engaging portion and the step engaging portion are configured to extend at generally right angles from each other. In operation, the handle engaging portion is engaged with the handle of the bucket, and the step plate is positioned on the ground, and a user steps on the step plate during mixing of materials contained within the bucket.