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US 6,637,280 B2Granted
Variable vibratory mechanism
AssigneeCaterpillar Paving Products Inc.
InventorDean R. Potts
Life of this patent
Estimating the term…
Abstract
A vibratory mechanism is provided with first and second motors connected to first and second eccentric weights. One of the first and second motors is operable to change a phase difference between the first and second eccentric weights to change a vibration amplitude.
Claims14
A vibratory mechanism, comprising:
- a first eccentric height rotatably supported within a housing;
- a second eccentric weight being coaxially rotatable with said first eccentric weight;
- and
- a first motor connected with said first eccentric weight;
- a second motor connected with said second eccentric weight;
- and
- wherein said first and second motors are positioned on the same side of the vibratory mechanism and one of said first and second motors is operable to change a phase difference between said first and second eccentric weights.
4 more elements
Dependencies are inferred from the claim text.