Donald J. Alexander

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Beaver Dam, WI, US

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Patents Grantslast 30 patents

Information Patent Grant
Combined direct and indirect rotary dryer with reclaimer
- Patent number 5,305,533
- Issue date Apr 26, 1994
- Donald J. Alexander
- F26 - DRYING
Information Patent Grant
Asphalt plant with segmented drum and zonal heating
- Patent number 5,083,870
- Issue date Jan 28, 1992
- Robert A. Sindelar
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Grant
Method and apparatus for asphalt paving
- Patent number 4,347,016
- Issue date Aug 31, 1982
- Robert A. Sindelar
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES