Dynamic mixer for dental impression compounds
First Claim
1. A dynamic mixer for the components of dental impression compounds, whose one end can be connected to a device for dispensing the components and whose other end has an outlet opening for the mixture, and which comprises a mixer tube, a rotor arranged for rotation within said mixer tube about an axis of rotation, a mixing channel outwardly defined by said mixing tube and inwardly defined by said rotor and of annular cross section, and an end wall with inlet openings for the components, characterized in that the rotor directs the open side of at least one chamber towards the end wall, which at least one chamber in each case has at least one outflow opening, said at least one outflow opening defined by a cutout in a plate projecting radially from said rotor and axially spaced from said end wall such that an axial movement of said components is constricted as said components pass through said at least one outflow opening.
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Accused Products
Abstract
The subject of the invention is a dynamic mixer for viscous compositions, in particular for components for dental impression compounds. The mixer consists of a mixer tube, a rotor located in the latter, and an end wall with inlet openings through which the components to be mixed pass into the mixer. In doing so, they first alternately fill chambers arranged on the rotor. The composition then flows out of the chambers through admission openings into the mixing channel, where it can be stirred by mixer blades.
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Citations
25 Claims
- 1. A dynamic mixer for the components of dental impression compounds, whose one end can be connected to a device for dispensing the components and whose other end has an outlet opening for the mixture, and which comprises a mixer tube, a rotor arranged for rotation within said mixer tube about an axis of rotation, a mixing channel outwardly defined by said mixing tube and inwardly defined by said rotor and of annular cross section, and an end wall with inlet openings for the components, characterized in that the rotor directs the open side of at least one chamber towards the end wall, which at least one chamber in each case has at least one outflow opening, said at least one outflow opening defined by a cutout in a plate projecting radially from said rotor and axially spaced from said end wall such that an axial movement of said components is constricted as said components pass through said at least one outflow opening.
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14. A dynamic mixer for the components of dental compounds, said mixer extending from a first end connectable to a device for dispensing the components to a second end defining an outlet opening for a dental compound formed from a mixture of said components, said dynamic mixer comprising:
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an axially extending mixing tube which defines a radial outer limit for a mixing channel;
an end wall adjacent said first end, said end wall defining inlet openings for said components;
an axially extending rotor which defines a radial inner limit for said mixing channel, said rotor arranged for rotation about an axis within said mixer tube, said rotor comprising;
a plate axially spaced from said end wall and radially extending from said rotor to said mixing tube; and
a plurality of radially projecting walls, said walls being generally perpendicular to said plate and extending from said plate toward said end wall, wherein a plurality of chambers are arranged around said axis of rotation, said chambers being axially delimited by said end wall and said plate, radially delimited by said mixing tube and said rotor, and separated by said radially projecting walls. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. A dynamic mixer for the components of dental compounds, said mixer extending from a first end connectable to a device for dispensing the components to a second end defining an outlet opening for a dental compound formed from a mixture of said components, said dynamic mixer comprising:
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an axially extending mixing tube which defines a radial outer limit for a mixing channel, said mixing tube comprising a plurality of inwardly projecting mixing vanes;
an end wall adjacent said first end, said end wall defining inlet openings for said components;
an axially extending rotor which defines a radial inner limit for said mixing channel, said rotor arranged for rotation about an axis within said mixer tube, said rotor comprising;
radially projecting groups of mixer blades fixed for rotation with said rotor, wherein said groups of mixer blades are axially spaced from each other along said rotor and a portion of said rotor is free of mixer blades with said mixing vanes arranged at an axial location corresponding to the portion of said rotor that is free of mixer blades. - View Dependent Claims (25)
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Specification