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Ejecting ink using shape memory alloys

  • US 6,764,166 B2
  • Filed: 12/02/2002
  • Issued: 07/20/2004
  • Est. Priority Date: 07/15/1997
  • Status: Expired due to Fees
First Claim
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1. A method of ejecting ink from a chamber having a cantilevered beam actuator incorporating a shape memory alloy, the cantilevered beam rigidly mounted fixed end and a free end opposite the fixed end wherein during use;

  • the free end is immersed in ink, the method comprising;

    causing the actuator to deflect and eject ink, wherein the step of causing the actuator to deflect includes transforming the shape memory alloy from its martensitic phase to its austenitic phase or visa versa.

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