Patents by Inventor Raul A. Perez

Raul A. Perez 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).

  • Publication number: 20030202062
    Abstract: Apparatuses, methods, systems, and arrangements enable a modular and/or adaptable ink supply system for printing devices. In certain implementations base ink containers having ink couplings are designed for use individually or grouped together with a carrier. Ink cartridges of various sizes and purposes may therefore be manufactured and operationally employed utilizing one or more substantially identical base ink containers. In certain (alternative but non-exhaustive) implementations, a carrier may include a lid that serves to aid retention of the base ink containers against the carrier and/or to facilitate the use of the ink couplings of the base ink containers. Additionally, an ink cartridge, with one or multiple base ink containers, may optionally employ a single memory chip apparatus for utilization of intelligent printing functions. Those ink cartridges with multiple base ink containers may hold a single hue of ink or multiple different hues of ink.
    Type: Application
    Filed: April 25, 2002
    Publication date: October 30, 2003
    Inventors: Charles R. Steinmetz, Ronald R. Anderson, Raul Perez, Mark McGarry, David Berardelli
  • Patent number: 6639390
    Abstract: A capacitively compensated voltage regulator, adapted to be supplied with power from a voltage supply, and having an input port and an output port. The voltage regulator includes a voltage regulation circuit responsive to a reference voltage at the input port to provide a regulated voltage at the output port, including a compensation capacitor having a plate connected to a node internal to the voltage regulator, and including a current source coupled between the voltage supply and the internal node. The voltage regulator also includes a low power control circuit responsive to a low power command signal.
    Type: Grant
    Filed: April 1, 2002
    Date of Patent: October 28, 2003
    Assignee: Texas Instruments Incorporated
    Inventors: Raul A. Perez, Baoson Nguyen
  • Publication number: 20030184268
    Abstract: A capacitively compensated voltage regulator, adapted to be supplied with power from a voltage supply, and having an input port and an output port. The voltage regulator includes a voltage regulation circuit responsive to a reference voltage at the input port to provide a regulated voltage at the output port, including a compensation capacitor having a plate connected to a node internal to the voltage regulator, and including a current source coupled between the voltage supply and the internal node. The voltage regulator also includes a low power control circuit responsive to a low power command signal.
    Type: Application
    Filed: April 1, 2002
    Publication date: October 2, 2003
    Inventors: Raul A. Perez, Baoson Nguyen
  • Publication number: 20030122613
    Abstract: The present invention provides increased output swing by connecting a buffer backgate to an upper rail potential (125) during the no load current condition. This can be done through the use of a comparator (440) and a multiplexer (460), thereby changing the threshold voltage of the buffer (115).
    Type: Application
    Filed: December 31, 2001
    Publication date: July 3, 2003
    Inventor: Raul A. Perez
  • Patent number: 6196902
    Abstract: An apparatus for finishing the edge of a sheet of glass, which includes a supporting structure with a support base, a stationary vertical structure coupled on the support base, and, an upper supporting arm located in a horizontal position on the vertical stationary structure. A motor is connected at one end of the upper supporting arm. Grinding means are connected to the motor fort finishing or grinding the edge of sheet of glass. A housing for housing the grinding means, which includes a fixed upper section and a removable lower section. A longitudinal groove is made in the housing for the introduction of the edge of the glass sheet to contact with the grinding means in order to finish the edge of the glass sheet. Cooling means are located within the housing for cooling the periphery, lower and upper sections of the grinding means during the finishing of the edge of the glass sheet.
    Type: Grant
    Filed: April 28, 2000
    Date of Patent: March 6, 2001
    Assignee: Vidrio Plano de Mexico, S.A. De C.V.
    Inventors: Pedro Gazca-Ortiz, José Luis Jimenez-Garay, Rafael Rojas-Cortes, Gonzalo Garcia-Perez, Raúl Perez-Gonzalez, José Rivera-Dominguez, Mauricio Rubio-Juarez
  • Patent number: 6074050
    Abstract: Disclosed is a replaceable ink container for providing ink to an ink-jet printing system. The ink container includes a pressure vessel for pressurizing ink. The ink container has a non-operating state and an operating state. Within the operating state, the pressure vessel has an internal gauge pressure maintained within an operating range so that pressurized ink is provided to the printing system. The ink container also includes a gas vent apparatus communicating between an inside surface of the pressure vessel and an outside atmosphere to allow continuous venting in both the operating and non-operating states. In one preferred embodiment the vent apparatus includes a porous member that is located between a pressurized region of the ink container and an outside atmosphere. This porous member provides a flow path for gas therethrough.
    Type: Grant
    Filed: December 3, 1997
    Date of Patent: June 13, 2000
    Assignee: Hewlett-Packard Company
    Inventors: Raul Perez, Rhonda Wilson, Norman E. Pawlowski, Jr.
  • Patent number: 4597382
    Abstract: A sleeve shaped body having a liquid absorbent segment and a wettable segment is positioned on a speculum member during a medical procedure in which a laser instrument is utilized. The liquid absorbent segment inhibits reflection and dissipates the energy of any errant, impinging laser beams. Placement in a body cavity of the speculum with the sleeve shaped body positioned thereon is facilitated by use of the wettable segment which provides for a relatively low sliding friction in contact with human body tissue. A method using this technique is described.
    Type: Grant
    Filed: March 16, 1984
    Date of Patent: July 1, 1986
    Inventor: Raul Perez, Jr.