US2006255690A1PendingUtilityA1

Methods and apparatus for power generation

48
Individually held — no corporate assignee on recordPriority: Aug 11, 2004Filed: Feb 21, 2006Published: Nov 16, 2006
Est. expiryAug 11, 2024(expired)· nominal 20-yr term from priority
Inventors:Jahangir S. RastegarDavid Haarhoff
F42C 11/02F42C 11/008H02N 2/183
48
PatentIndex Score
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Claims

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 for generating an output power upon an impact; and a helical spring element configured to have at least one of a portion thereof and a portion attached thereto impact the piezoelectric material upon the acceleration, the helical spring element having a plurality of helical strands.

Claims

exact text as granted — not AI-modified
1 . An apparatus for generating an electrical power upon an acceleration of the apparatus, the apparatus comprising: 
 a piezoelectric member having at least a portion thereof formed of a piezoelectric material for generating an output power upon an impact; and    a helical spring element configured to have at least one of a portion thereof and a portion attached thereto impact the piezoelectric material upon the acceleration, the helical spring element having a plurality of helical strands.    
   
   
       2 . The apparatus of  claim 1 , wherein the spring element has three or more helical strands.  
   
   
       3 . The apparatus of  claim 2 , wherein the three or more helical strands are substantially equally spaced.  
   
   
       4 . The apparatus of  claim 1 , further comprising a mass associated with the spring element for increasing a magnitude of the impact, wherein the mass is a portion of the spring element.  
   
   
       5 . The apparatus of  claim 1 , further comprising a mass associated with the spring element for increasing a magnitude of the impact, wherein the mass is a separate portion from the spring and attached thereto.  
   
   
       6 . An apparatus for generating an electrical power upon an acceleration of the apparatus, the apparatus comprising: 
 a housing;    a piezoelectric member positioned within the housing;    a helical spring element disposed with the housing, the helical spring element having a plurality of helical strands; and    a mass configured to impact the piezoelectric material upon the acceleration.    
   
   
       7 . The apparatus of  claim 6 , wherein the spring element has three or more helical strands.  
   
   
       8 . The apparatus of  claim 7 , wherein the three or more helical strands are substantially equally spaced.  
   
   
       9 . The apparatus of  claim 6 , wherein the mass is a portion of the spring element.  
   
   
       10 . The apparatus of  claim 6 , wherein the mass is a separate portion from the spring and attached thereto.

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