Mass-spring unit for generating power by applying a cyclic...

Details Mass-spring unit for generating power by applying a cyclic... Mass-spring unit for generating power by applying a cyclic...

2007-12-25

2007-12-25

San Martin, J. (Department: 2834)

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

C102S206000, C102S207000, C102S208000, C102S209000, C102S210000

Reexamination Certificate

active

11116093

ABSTRACT:
An apparatus for generating an electrical power upon an acceleration of the apparatus is provided. The apparatus including: a piezoelectric member having at least a portion thereof formed of a piezoelectric material; and a mass-spring unit having a spring element attached to the piezoelectric material and configured to compress and/or elongate within a predetermined limit, the mass-spring unit further having a mass offset from the piezoelectric material; wherein the mass-spring unit is configured to vibrate within the predetermined limit, upon the acceleration of the apparatus, the vibration applying a cyclic force to the piezoelectric member to generate an output power from the piezoelectric member.

REFERENCES:
patent: 3633511 (1972-01-01), Maury
patent: 3815505 (1974-06-01), Roh et al.
patent: 3859746 (1975-01-01), Pecksen
patent: 3963966 (1976-06-01), Mohr
patent: 2003/0041767 (2003-03-01), Rastegar et al.

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