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US 4,478,514 AGranted
Vibrating concrete mixer
AssigneeIngrid Hudelmaier
InventorGerhard Hudelmaier
Life of this patent
Estimating the term…
Abstract
A concrete mixer having a drum, which contains mixing elements, and at least one vibrator for imparting vibrational energy to the material which is to be mixed. The vibrator is drivable by means of the water used to make up the concrete. The water may be discharged in a pulsating manner from a vibrating body which is caused to vibrate by this pulsation, or it may rotatably drive an eccentric mass in the vibrating body.
Claims18
A concrete mixer comprising:
- a rotatable drum;
- means for rotatably driving the drum about an axis of rotation;
- a water conduit having an entrance outside the drum and an exit inside the drum;
- and
- means responsive to water flowing through the conduit to the exit for transferring vibrations to the inside of the drum.
2 more elements
A method for mixing concrete constituents in a drum comprising the steps of:
- introducing the dry concrete constituents into the drum;
- separately introducing the water constituent into the drum;
- and
- converting some of the energy of the water being introduced into the drum into vibrations in an elastic member in contact with the constituents to promote mixing thereof.
1 more element
Dependencies are inferred from the claim text.