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US 4,308,431 AGranted
Speaker with low mass driver
OwnerRichard B. Hanbickiinventor
Life of this patent
Estimating the term…
Abstract
Sound is created by imparting vibration to a thin membrane by means of a polar gas which is disturbed by changing electrostatic field concentrated within selected portions of the region occupied by said gas whose molecules align themselves along the field lines of the concentrated electrostatic field to impart vibration to the thin displaceable membrane and thereby create sound.
Claims10
A speaker comprising a gas-tight enclosure containing a gas:
- said enclosure having a pair of spaced substantially parallel faces each respectively having first and second conductive means for creating an electric field in the region between said first and second conductive means to disturb the random distribution of molecules in said gas disposed in said electric field;
- said first conductive means being displaceable whereby disturbance of said gas by the electric field imparts vibration to said first conductive means, said vibration occuring at a rate which is a function of the rate of change of said electric field;
- and
- said second conductive means comprising means for concentrating said electric field at predetermined regions about the major faces of said first and second conductive means.
1 more element
Dependencies are inferred from the claim text.