US Patent No: 5,942,679

Number of patents in Portfolio can not be more than 2000

Compaction index

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Importance

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Abstract

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In compacting an asphalt layer which is continuously deposited by a paver machine, a compacting machine reciprocates behind the paver. With the aid of signals from sensors (3) for temperature, sensors (5) for movement velocity of the compacting machine, sensors (7) for change of path, and sensors (9) for static/vibratory compacting operation, a processor (1) determines the position of the compacting machine continuously in relation to the paver, and other variables for each area segment passed by the compacting machine. The position of the compacting machine is displayed symbolically on a monitor (19) and the variables measured and determined for each passed area segment are stored in a memory (17). For each passed area segment, a total index number can be determined for this area segment, which on the monitor (19) is displayed as a field having a color or light intensity which is proportional to this total index number. The index number indicates the total amount of compacting work which the compacting machine has made on this area segment. This position of a field representing such an area segment is displayed on the monitor (19) in a proportional scale.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
GEODYNAMIK HT AKTIEBOLAGSTOCKHOLM1
GOEODYNAMIK HT AKTIEBOLAGSTOCKHOLM, SE3

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Sandstrom, ANGke Sollentuna, SE 4 33

Cited Art Landscape

Patent Info (Count) # Cites Year
 
Geodynamik H. Thurner AB (2)
4,467,652 Procedure and device for compaction measurement 19 1982
4,870,601 Method to estimate the degree of compaction obtained at compaction and means to measure the degree of compaction for carrying out the method 14 1986
 
CATERPILLAR PAVING PRODUCTS INC. (1)
5,164,641 Apparatus and method for controlling the frequency of vibration of a compacting machine 13 1990
 
HERCULES GRUNDLAGGNING AKTIENBOLAG (1)
4,504,176 Method for compacting compactable soils by vibration 6 1982
 
KOEHRING GMBH (1)
4,348,901 Apparatus for monitoring the degree of compaction 19 1980
 
NILSSON, PETER (1)
4,590,802 Measuring apparatus for measuring the degree of compaction of a material 5 1985
 
VIBROMAX 2000 BODENVERDICHTUNGSMASCHINEN (1)
4,734,846 Apparatus for providing an indication of compaction in vibration compacting machines 10 1985
 
WACKER NEUSON PRODUKTION GMBH & CO. KG (1)
5,415,494 Process for determining and indicating the degree of ground compacting attained during work with a ground compacter 3 1994
 
Other [Check patent profile for assignment information] (2)
4,959,994 Method of and an arrangement for measuring the properties of a stiff mass to be compacted 1 1989
4,943,930 Method and apparatus for non-destructive evaluation of concrete 20 1989

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
CATERPILLAR INC. (10)
6,460,006 System for predicting compaction performance 25 1999
6,742,960 Vibratory compactor and method of using same 16 2002
6,973,821 Compaction quality assurance based upon quantifying compactor interaction with base material 16 2004
7,428,455 Compaction indication by effective rolling radius 3 2004
7,191,062 Method and system of forecasting compaction performance 10 2004
7,623,951 Machine and method of determining suitability of work material for compaction 8 2006
7,731,450 Method of operating a compactor machine via path planning based on compaction state data and mapping information 5 2006
7,908,062 System and method for preparing a worksite based on soil moisture map data 0 2007
8,099,218 Paving system and method 0 2007
8,382,395 Paving system and method for controlling compactor interaction with paving material mat 0 2008
 
CATERPILLAR PAVING PRODUCTS INC. (2)
6,558,072 Speed control system for a work machine 12 2001
7,089,823 Vibratory mechanism controller 5 2002
 
BOMAG GMBH (1)
6,619,125 Method and device for determining the degree of compaction during ground compaction 5 2001
 
HAMM AG (1)
7,873,492 Method for determining a compaction degree of asphalts and system for determining a compaction degree 0 2008
 
MOBA-MOBILE AUTOMATION AG (1)
8,798,904 Device and method for determining the position of a road roller relative to a road finisher 0 2007
 
SAKAI HEAVY INDUSTRIES, LTD. (1)
6,752,567 Apparatus for managing degree of compaction in a vibratory compact vehicle 12 2002
 
WACKER NEUSON PRODUKTION GMBH & CO. KG (1)
6,846,128 Mobile soil compacting device whose direction of travel is stabilized 7 2003