Home >> Patent Categories

Patents

Patent Search

United States Patent 5785420
Douris , ê et al. July 28, 1998

Apparatus for metering and mixing aggregate and cement

Schuff July 28, 1998

Abstract

Portable metering and mixing apparatus includes a trailer having a hopper thereon divided into two compartments, one compartment for sand material and another compartment for cementitious material. Screw conveyor assemblies, or auger assemblies, receive the materials and convey the materials to a mixer assembly. Different embodiments are disclosed. One embodiment includes a mixing chamber aligned with an auger assembly and to which the mixing chamber materials are fed directly. Another embodiment discloses a separate mixer assembly to which the materials are conveyed by a pair of auger assemblies.