Controlling compaction of a substrate by a surface compactor machine
Number of patents in Portfolio can not be more than 2000
United States of America
Stats
-
Mar 29, 2022
Grant Date -
Dec 23, 2021
app pub date -
Nov 21, 2017
filing date -
Nov 21, 2017
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A surface compactor machine includes a compacting surface for compacting a substrate, a first motor, a second motor, a support assembly, and a controller. The first motor rotates a first eccentric shaft. The second motor rotates a second eccentric shaft. The support assembly is connected to the first and second eccentric shafts to transfer vibration forces to the compacting surface. The controller controls speed of at least one of the first and second motors so that a rotational speed of the second eccentric shaft is an integer, greater than 1, times faster than a rotational speed of the first eccentric shaft to generate a composite displacement waveform that vibrates the compacting surface upwards and downwards, wherein the composite displacement waveform includes a zero amplitude coordinate, a wave section located above the zero amplitude coordinate, and a wave section located below the zero amplitude coordinate that is asymmetric relative to the wave section located above the zero amplitude coordinate.
First Claim
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Family
International Classification(s)
- 2017 Application Filing Year
- B06B Class
- 452 Applications Filed
- 305 Patents Issued To-Date
- 67.48 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- B06B Class
- 0 % this patent is cited more than
- 3 Age
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