Philip J Schlarmann
Engineers in Monticello, IA
License number
Utah 165900-2202
Issued Date
Jun 16, 1983
Expiration Date
Apr 30, 1994
Category
Engineer/Land Surveyor
Type
Professional Engineer
Address
Address
Monticello, IA
Professional information
Apparatus For Asphaltic Concrete Hot Mix Recycling
US Patent:
4165184, Aug 21, 1979
Filed:
Sep 7, 1977
Appl. No.:
5/831154
Inventors:
Philip J. Schlarmann - Scotch Grove IA
Assignee:
Iowa Manufacturing Company of Cedar Rapids, Iowa - Cedar Rapids IA
International Classification:
B28C 520, B28C 538, B28C 542
US Classification:
366 12
Abstract:
A method of hot mix recycling of old asphaltic concrete paving heats the old pavement, after it has been removed and sized, to a temperature below its firing point and heats fresh aggregate to a greater temperature before combining the two and adding new asphalt. The method is embodied in a drum-mixer type of apparatus modified by inserting a smaller drum in the upstream portion of the large drum. The burner fires into the smaller drum into which the fresh aggregate only is introduced while the old mix (plus additional fresh aggregate in certain cases) is introduced into the annular space between the two drums, the fresh aggregate and the old mix being thereafter combined in the large drum, new asphalt added and the mix further heated.
Method Of And Apparatus For Asphaltic Concrete Hot Mix Recycling
US Patent:
4318619, Mar 9, 1982
Filed:
May 19, 1980
Appl. No.:
6/151273
Inventors:
Philip J. Schlarmann - Scotch Grove IA
Assignee:
Iowa Manufacturing Company of Cedar Rapids, Iowa - Cedar Rapids IA
International Classification:
B28C 506, B28C 520, B28C 546
US Classification:
366 4
Abstract:
A method of hot mix recycling of old asphaltic concrete paving heats the old pavement, after it has been removed and sized, to a temperature below its firing point and heats fresh aggregate to a greater temperature before combining the two and adding new asphalt. The method is embodied in a drum-mixer type of apparatus modified by inserting a smaller drum in the upstream portion of the large drum. The burner fires into the smaller drum into which the fresh aggregate only is introduced while the old mix (plus additional fresh aggregate in certain cases) is introduced into the annular space between the two drums, the fresh aggregate and the old mix being thereafter combined in the large drum, new asphalt added and the mix further heated.