Patent ID: 7607818

Claim:
An extruder for viscous masses, comprising: an extruder screw ( 12 ); and a positive-displacement gear pump ( 20 ) disposed downstream of said extruder screw ( 12 ) as viewed in a conveying direction, wherein said positive-displacement gear pump ( 20 ) is provided with at least one conveying gear ( 22 , 222 ) and at least one positive-displacement gear ( 32 ), further wherein an axis ( 23 ) of said at least one conveying gear ( 22 , 222 ) is disposed essentially at right angles to an axis ( 13 ) of said extruder screw ( 12 ), and wherein an axis ( 33 ) of said at least one positive-displacement gear ( 32 ) is disposed essentially in the same direction as said axis ( 13 ) of said extruder screw ( 12 ), wherein said at least one conveying gear ( 22 , 222 ) and said at least one positive-displacement pear ( 32 ) are embodied as bevel gears that mesh with one another.