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Nozzle arrangement with sealing structure

  • US 7,938,509 B2
  • Filed: 05/31/2009
  • Issued: 05/10/2011
  • Est. Priority Date: 07/15/1997
  • Status: Expired due to Fees
First Claim
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1. A nozzle arrangement for an inkjet printhead, the nozzle arrangement comprising:

  • a nozzle chamber having an ink inlet and an ink ejection port;

    an ink ejection paddle angularly displaceable within the nozzle chamber and extending across the nozzle chamber, a distal end portion of the paddle being arranged between the ink inlet and the ink ejection port;

    a thermal bend actuator positioned outside the nozzle chamber and configured to displace a working end thereof upon receipt of a drive signal;

    a motion-transmitting structure for interconnecting the working end of the thermal bend actuator and a proximal end portion of the paddle allowing the thermal bend actuator to actuate the paddle; and

    a sealing structure interposed between the working end of the thermal bend actuator and the proximal end portion of the paddle, the motion-transmitting structure bridging the sealing structure.

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