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US 4,655,602 AGranted
Turbine mixer
AssigneeMonier, Inc.
InventorRobert K. Tomlinson
Life of this patent
Estimating the term…
Abstract
A mixer having a rotary drum which comprises a flexible member, an inner rotor with outstanding blades thereon, the flexible member, the inner rotor, and its blades all being of elastomeric material, the inner diameter of the flexible member being greater than the envelope diameter of the rotor blades, the mixer rotor being positionable within the flexible member with which its blades co-operate in the mixing of concrete, but being withdrawable therefrom for cleaning and maintenance purposes.
Claims11
A concrete mixer comprising a main frame and a sub-frame,
- an inner rotor carried by the sub-frame and journalled for rotation with respect thereto, and comprising blades radially outstanding from its outer surface,
- a rotary drum assembly carried by the main frame and journalled for rotation with respect thereto, and comprising a flexible member, said inner rotor, its said blades and said drum flexible member all being of elastomeric material,
- guide means guiding the sub-frame for movement with respect to the main frame between a first position wherein the inner rotor is within the drum flexible member with which its blades co-operate in the mixing of concrete, and a second position wherein the inner rotor is withdrawn therefrom,
- first drive means on a said frame coupled to the inner rotor for effecting rotational drive thereof, and second drive means on the main frame coupled to the rotary drum for effecting rotational drive thereof.
1 more element
Dependencies are inferred from the claim text.