Electrical generator or motor structure – Dynamoelectric – Reciprocating
Patent
1995-07-20
1996-09-24
Dougherty, Thomas M.
Electrical generator or motor structure
Dynamoelectric
Reciprocating
310367, H01L 4108
Patent
active
055593879
ABSTRACT:
Combinations of oppositely poled piezoelectric shapes which, when electrically stimulated, effect increased linear or rotational displacement. In a typical arrangement a length of PVDF piezoelectric material poled in one direction is spatially separated from a second similarly shaped length of PVDF piezoelectric material poled in the opposite direction by an electrically inert substance. When stimulated by an appropriate voltage, one length contracts while the other length expands producing an increased deflection in the combination.
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patent: 5344387 (1994-09-01), Lupin
patent: 5410210 (1995-04-01), Sato et al.
patent: 5438553 (1995-08-01), Wilson et al.
Dougherty Thomas M.
Shapiro Herbert M.
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