Patents by Inventor Greg McAvoy
Greg McAvoy has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 7021746Abstract: A nozzle arrangement for an ink jet printhead includes a wafer substrate having a nozzle chamber defined therein. The nozzle arrangement has a nozzle chamber wall that defines an ink ejection port and a rim about the ink ejection port. A series of radially positioned actuators are connected to the wafer substrate and extend radially inwardly towards the rim. Each actuator is configured so that a radially inner edge of each actuator is displaceable, with respect to the nozzle rim, into the chamber, upon actuation of the actuator and so that, upon such displacement, a pressure within the nozzle chamber is increased, resulting in the ejection of ink from the ejection port.Type: GrantFiled: May 15, 2001Date of Patent: April 4, 2006Assignee: Silverbrook Research Pty LtdInventors: Kia Silverbrook, Greg McAvoy
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Patent number: 6981757Abstract: A nozzle arrangement for an ink jet printhead includes a wafer substrate having a nozzle chamber defined therein. The nozzle arrangement has a nozzle chamber wall that defines an ink ejection port and a rim about the ink ejection port. A series of radially positioned actuators are connected to the wafer substrate and extend radially inwardly towards the rim. Each actuator is configured so that a radially inner edge of each actuator is displaceable, with respect to the nozzle rim, into the chamber, upon actuation of the actuator and so that, upon such displacement, a pressure within the nozzle chamber is increased, resulting in the ejection of ink from the ejection port.Type: GrantFiled: May 14, 2001Date of Patent: January 3, 2006Assignee: Silverbrook Research PTY LTDInventors: Kia Silverbrook, Greg McAvoy
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Publication number: 20050041066Abstract: A nozzle arrangement for an ink jet printhead includes a wafer substrate having a nozzle chamber defined therein. The nozzle arrangement has a nozzle chamber wall that defines an ink ejection port and a rim about the ink ejection port. A series of radially positioned actuators are connected to the wafer substrate and extend radially inwardly towards the rim. Each actuator is configured so that a radially inner edge of each actuator is displaceable, with respect to the nozzle rim, into the chamber, upon actuation of the actuator and so that, upon such displacement, a pressure within the nozzle chamber is increased, resulting in the ejection of ink from the ejection port.Type: ApplicationFiled: May 14, 2001Publication date: February 24, 2005Inventors: Kia Silverbrook, Greg McAvoy
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Patent number: 6712986Abstract: A nozzle arrangement for an ink jet printhead includes a wafer substrate having a nozzle chamber defined therein. The nozzle arrangement has a nozzle chamber wall that defines an ink ejection port and a rim about the ink ejection port. A series of radially positioned actuators are connected to the wafer substrate and extend radially inwardly towards the rim. Each actuator is configured so that a radially inner edge of each actuator is displaceable, with respect to the nozzle rim, into the chamber, upon actuation of the actuator and so that, upon such displacement, a pressure within the nozzle chamber is increased, resulting in the ejection of ink from the ejection port.Type: GrantFiled: May 14, 2001Date of Patent: March 30, 2004Assignee: Silverbrook Research Pty LtdInventors: Kia Silverbrook, Greg McAvoy
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Patent number: 6505912Abstract: A nozzle arrangement for an ink jet printhead includes a wafer substrate having a nozzle chamber defined therein. The nozzle arrangement has a nozzle chamber wall that defines an ink ejection port and a rim about the ink ejection port. A series of radially positioned actuators are connected to the wafer substrate and extend radially inwardly towards the rim. Each actuator is configured so that a radially inner edge of each actuator is displaceable, with respect to the nozzle rim, into the chamber, upon actuation of the actuator and so that, upon such displacement, a pressure within the nozzle chamber is increased, resulting in the ejection of ink from the ejection port.Type: GrantFiled: May 14, 2001Date of Patent: January 14, 2003Assignee: Silverbrook Research Pty LtdInventors: Kia Silverbrook, Greg McAvoy
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Patent number: 6488358Abstract: A nozzle arrangement for an ink jet printhead includes a wafer substrate having a nozzle chamber defined therein. The nozzle arrangement has a nozzle chamber wall that defines an ink ejection port and a rim about the ink ejection port. A series of radially positioned actuators are connected to the wafer substrate and extend radially inwardly towards the rim. Each actuator is configured so that a radially inner edge of each actuator is displaceable, with respect to the nozzle rim, into the chamber, upon actuation of the actuator and so that, upon such displacement, a pressure within the nozzle chamber is increased, resulting in the ejection of ink from the ejection port.Type: GrantFiled: May 14, 2001Date of Patent: December 3, 2002Assignee: Silverbrook Research Pty LtdInventors: Kia Silverbrook, Greg McAvoy
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Publication number: 20020047875Abstract: A nozzle arrangement for an ink jet printhead includes a wafer substrate having a nozzle chamber defined therein. The nozzle arrangement has a nozzle chamber wall that defines an ink ejection port and a rim about the ink ejection port. A series of radially positioned actuators are connected to the wafer substrate and extend radially inwardly towards the rim. Each actuator is configured so that a radially inner edge of each actuator is displaceable, with respect to the nozzle rim, into the chamber, upon actuation of the actuator and so that, upon such displacement, a pressure within the nozzle chamber is increased, resulting in the ejection of ink from the ejection port.Type: ApplicationFiled: May 15, 2001Publication date: April 25, 2002Inventors: Kia Silverbrook, Greg McAvoy
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Publication number: 20020040887Abstract: A nozzle arrangement for an ink jet printhead includes a wafer substrate having a nozzle chamber defined therein. The nozzle arrangement has a nozzle chamber wall that defines an ink ejection port and a rim about the ink ejection port. A series of radially positioned actuators are connected to the wafer substrate and extend radially inwardly towards the rim. Each actuator is configured so that a radially inner edge of each actuator is displaceable, with respect to the nozzle rim, into the chamber, upon actuation of the actuator and so that, upon such displacement, a pressure within the nozzle chamber is increased, resulting in the ejection of ink from the ejection port.Type: ApplicationFiled: May 14, 2001Publication date: April 11, 2002Inventors: Kia Silverbrook, Greg McAvoy
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Publication number: 20020021331Abstract: A nozzle arrangement for an ink jet printhead includes a wafer substrate having a nozzle chamber defined therein. The nozzle arrangement has a nozzle chamber wall that defines an ink ejection port and a rim about the ink ejection port. A series of radially positioned actuators are connected to the wafer substrate and extend radially inwardly towards the rim. Each actuator is configured so that a radially inner edge of each actuator is displaceable, with respect to the nozzle rim, into the chamber, upon actuation of the actuator and so that, upon such displacement, a pressure within the nozzle chamber is increased, resulting in the ejection of ink from the ejection port.Type: ApplicationFiled: May 14, 2001Publication date: February 21, 2002Inventors: Kia Silverbrook, Greg McAvoy
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Publication number: 20010035896Abstract: A nozzle arrangement for an ink jet printhead includes a wafer substrate having a nozzle chamber defined therein. The nozzle arrangement has a nozzle chamber wall that defines an ink ejection port and a rim about the ink ejection port. A series of radially positioned actuators are connected to the wafer substrate and extend radially inwardly towards the rim. Each actuator is configured so that a radially inner edge of each actuator is displaceable, with respect to the nozzle rim, into the chamber, upon actuation of the actuator and so that, upon such displacement, a pressure within the nozzle chamber is increased, resulting in the ejection of ink from the ejection port.Type: ApplicationFiled: May 14, 2001Publication date: November 1, 2001Inventors: Kia Silverbrook, Greg McAvoy
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Patent number: 6260953Abstract: An ink jet print head includes a nozzle chamber for storage of ink to be ejected from an ink ejection nozzle formed in one wall of the nozzle chamber; and a movable paddle actuator mechanism formed in a first wall of the nozzle chamber, one end of the paddle actuator traversing along a second wall of the nozzle chamber, the second wall being substantially perpendicular to the first wall; the one end further including a flange having a surface abutting the second wall, the movable paddle actuator mechanism being operable to cause the ejection of ink from the ink ejection nozzle with the flange moving substantially tangentially to the second wall.Type: GrantFiled: July 18, 1998Date of Patent: July 17, 2001Assignee: Silverbrook Research Pty LtdInventors: Kia Silverbrook, Greg McAvoy
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Patent number: 6247790Abstract: A nozzle arrangement for an ink jet printhead includes a wafer substrate having a nozzle chamber defined therein. The nozzle arrangement has a nozzle chamber wall that defines an ink ejection port and a rim about the ink ejection port. A series of radially positioned actuators are connected to the wafer substrate and extend radially inwardly towards the rim. Each actuator is configured so that a radially inner edge of each actuator is displaceable, with respect to the nozzle rim, into the chamber, upon actuation of the actuator and so that, upon such displacement, a pressure within the nozzle chamber is increased, resulting in the ejection of ink from the ejection port.Type: GrantFiled: July 10, 1998Date of Patent: June 19, 2001Assignee: Silverbrook Research Pty LtdInventors: Kia Silverbrook, Greg McAvoy