
US Patent No: 5,942,679
Number of patents in Portfolio can not be more than 2000
Compaction index
Stats
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Aug 24, 1999
Issued date -
Oct 27, 1995
filing date -
08/537,688
serial no -
Expired
status
Importance
Abstract
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.
First Claim
Related Publications
International Classification(s)
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Cited Art
| Patent Info | (Count) | # Cites | Year |
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| 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 | |
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| 5,164,641 Apparatus and method for controlling the frequency of vibration of a compacting machine | 13 | 1990 | |
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| 4,504,176 Method for compacting compactable soils by vibration | 6 | 1982 | |
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| 4,348,901 Apparatus for monitoring the degree of compaction | 19 | 1980 | |
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| 4,590,802 Measuring apparatus for measuring the degree of compaction of a material | 5 | 1985 | |
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| 4,734,846 Apparatus for providing an indication of compaction in vibration compacting machines | 10 | 1985 | |
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| 5,415,494 Process for determining and indicating the degree of ground compacting attained during work with a ground compacter | 3 | 1994 | |
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| 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 | 18 | 1989 | |