Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Patent
1992-10-07
1994-04-26
Budd, Mark O.
Electrical generator or motor structure
Non-dynamoelectric
Piezoelectric elements and devices
310 26, 60527, H01L 4108
Patent
active
053069790
ABSTRACT:
An actuator system for linear movement comprises an array of movable control wires, a spring-loaded, axially telescoping assembly and two bi-directional one-way clutch assemblies fitted to the ends of the telescoping assembly, the reciprocating compressive action of which operates in concert with the clutch assemblies whereby the wire is alternatingly pulled in one assembly while being ratcheted by the other to achieve incremental linear motion in one selected direction or the other. The telescoping assembly is compressed by a mechanical motion derived preferably from one of several alternate solid state electrical-to-motion transducers. The actuator system is built using the change in length of solid material. The bigger the actuator's scale, the more powerful the actuator. Conversely, since the dimensional changes take place in the material on a molecular level it suggests that very small units could be built in the micro-actuator size. The very large advantage of the microsystem of the present invention is derived from the simplicity of construction. There are no micro-motors or gears or shafts or bearings to build.
REFERENCES:
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patent: 4642802 (1987-02-01), Pozzo et al.
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patent: 4811564 (1989-03-01), Palmer
patent: 4946380 (1990-08-01), Lee
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Benefiel John R.
Budd Mark O.
Dougherty Thomas M.
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