Patent application number | Description | Published |
20080310249 | Low Emission Energy Efficient 100 Percent RAP Capable Asphalt Plant - An HMA plant which uses combination direct exhaust heated and indirectly steam heated pre-heating drum in combination with a sealed indirect hot oil heated rotary shaft mixer, where the steam given off from the heated HMA is maintained, separated from the sulfur containing exhaust of a hot oil heater, so as to minimize the production of acid in liquid form. | 12-18-2008 |
20090060658 | FRAME RAISING MULTI-USE PAVING TRACTOR WITH BLIND MATEABLE QUICK CONNECTING TOOL ATTACHMENTS - A multi-use asphalt paving tractor with frame raise capability and a blind-mateable connector to facilitate quick connection with interchangeable attachments for performing the functions of a paver, a mix transfer conveyor and road widener. | 03-05-2009 |
20090207684 | WARM MIX ASPHALT PRODUCTION SYSTEM AND METHOD - A warm mix asphalt plant comprising a counter-flow drum, apparatus for precisely metering flows of A/C and water, an asphalt expander with no moving internal parts where a circular curtain of flowing clean water is mixed with a coaxial circular curtain of moving heated A/C to create asphalt foam which is heated and mixed inside a lower portion of the asphalt expander and then distributed to cover aggregate inside the counter-flow drum. | 08-20-2009 |
20090257824 | TRACKLESS TACK PRE-COATING SYSTEM AND METHOD FOR HOT MIX ASPHALT PAVING - A tack emulsion pre-coating system for use in hot mix asphalt plant paving which comprises providing a triangular-shaped tack emulsion cart deployed ahead of a paver, and configured to operate under a conveyor from a transfer vehicle supplying the paver with HMA, where the cart comprises a forward spray bar which sprays tack emulsion on a surface located between the wheels of the paver so as not to leave tracks and with rear spray bars for spraying tack emulsion behind the wheels, but not behind a central area between the wheels of the paver. | 10-15-2009 |
20100020630 | PRE-AGGREGATE DRYING METHOD AND ENERGY EFFICIENT ASPHALT PLANT - An HMA plant which uses incidental heating of metal surfaces in combination with hot exhaust gases to pre-heat and pre-dry virgin aggregate material contained in an enclosed container which permits hot dry air to pass through interstices in the virgin aggregate material stored in the container. | 01-28-2010 |
20110176868 | FRAME RAISING MULTI-USE PAVING TRACTOR WITH BLIND MATEABLE QUICK CONNECTING TOOL ATTACHMENTS - A multi-use asphalt paving tractor with frame raise capability and a blind-mateable connector to facilitate quick connection with interchangeable attachments for performing the functions of a paver, a mix transfer conveyor and road widener. | 07-21-2011 |
20120170401 | LOW EMISSION ENERGY EFFICIENT 100 PERCENT RAP CAPABLE ASPHALT PLANT - An HMA plant which uses combination direct exhaust heated and indirectly steam heated pre-heating drum in combination with a sealed indirect hot oil heated rotary shaft mixer, where the steam given off from the heated HMA is maintained, separated from the sulfur containing exhaust of a hot oil heater, so as to minimize the production of acid in liquid form. | 07-05-2012 |
20120236677 | WARM MIX ASPHALT PRODUCTION SYSTEM AND METHOD - A warm mix asphalt plant comprising a counter-flow drum, apparatus for precisely metering flows of A/C and water, an asphalt expander with no moving internal parts where a circular curtain of flowing clean water is mixed with a coaxial circular curtain of moving heated A/C to create asphalt foam which is heated and mixed inside a lower portion of the asphalt expander and then distributed to cover aggregate inside the counter-flow drum. | 09-20-2012 |
20120263006 | PRE-AGGREGATE DRYING METHOD AND ENERGY EFFICIENT ASPHALT PLANT - An HMA plant which uses incidental heating of metal surfaces in combination with hot exhaust gases to pre-heat and pre-dry virgin aggregate material contained in an enclosed container which permits hot dry air to pass through interstices in the virgin aggregate material stored in the container. | 10-18-2012 |