Patents by Inventor William Caro

William Caro 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).

  • Regulation of back pressure within an ink reservoir
    Patent number: 7040743
    Abstract: Apparatus and methods for regulating back pressure within an ink reservoir for use in printing systems. Back pressure is regulated using a column of liquid within a trap contained in the ink reservoir. The trap is vented on one side to ambient pressure and to the other side within the body of the ink reservoir.
    Type: Grant
    Filed: April 25, 2003
    Date of Patent: May 9, 2006
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Miguel A. Acosta, William Caro, Lester Ortiz
  • Regulation of back pressure within an ink reservoir
    Publication number: 20040223037
    Abstract: Apparatus and methods for regulating back pressure within an ink reservoir for use in printing systems. Back pressure is regulated using a column of liquid within a trap contained in the ink reservoir. The trap is vented on one side to ambient pressure and to the other side within the body of the ink reservoir.
    Type: Application
    Filed: April 25, 2003
    Publication date: November 11, 2004
    Inventors: Miguel A. Acosta, William Caro, Lester Ortiz
  • Inkjet pen with removable lid
    Publication number: 20040150698
    Abstract: Inkjet pen apparatus include a pen body, a print head supported on the body, and a removable lid configured to engage the body by one of several means. Methods of enclosing an inkjet pen reservoir include providing a body that defines an ink reservoir, providing a lid configured to removably engage the body by one of several means, and placing the lid in removable retainment with respect to the body. The body and lid can include one each of a number of lid-engagement features, and body-engagement features, respectively, that are configured to cause the lid to be removably retained on the body.
    Type: Application
    Filed: January 31, 2003
    Publication date: August 5, 2004
    Inventors: William Caro, Ivan Baiges, Miguel Acosta