Patents by Inventor Suriyaprakash Saravanan

Suriyaprakash Saravanan 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: 20230319205
    Abstract: In one example, a device to transfer multiple first positions of an edge guide movable back and forth across a print media input tray to corresponding multiple second positions of an optical marker movable back and forth along a scan line next to a scan bed located near the input tray. The device includes a first part connected to or integral with the edge guide, a second part connected to or integral with the marker, and a mechanical link linking the first part and the second part to convert linear motion of the edge guide back and forth across the tray to linear motion of the marker back and forth along the scan line.
    Type: Application
    Filed: September 7, 2020
    Publication date: October 5, 2023
    Inventors: Aiqiang YANG, Kok Chai CHONG, Suriyaprakash SARAVANAN
  • Patent number: 11647137
    Abstract: A print media detection apparatus may include a movable scanner bar for scanning media, a feeder tray for supplying the print media, a print media indicator and a controller. The print media indicator may include a first portion to interact with the print media within the feeder tray and a second portion coupled to the first portion to move in response to movement of the first portion. The scanner bar is to sense the second portion of the media indicator. The controller is to determine a characteristic of the print media within the feeder tray based upon sensing of the second portion by the scanner bar.
    Type: Grant
    Filed: January 30, 2020
    Date of Patent: May 9, 2023
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Suriyaprakash Saravanan, Kok Chai Chong, Aiqiang Yang
  • Publication number: 20230051748
    Abstract: A print media detection apparatus may include a movable scanner bar for scanning media, a feeder tray for supplying the print media, a print media indicator and a controller. The print media indicator may include a first portion to interact with the print media within the feeder tray and a second portion coupled to the first portion to move in response to movement of the first portion. The scanner bar is to sense the second portion of the media indicator. The controller is to determine a characteristic of the print media within the feeder tray based upon sensing of the second portion by the scanner bar.
    Type: Application
    Filed: January 30, 2020
    Publication date: February 16, 2023
    Inventors: Suriyaprakash Saravanan, Kok Chai Chong, Aiqiang Yang
  • Publication number: 20220219466
    Abstract: A media sheet is manually inserted at a duplex reversal point of a duplex printing path of the printing device. The media sheet is advanced through the duplex printing path. As the media sheet advances through the duplex printing path, the media sheet is printed on, and the printed media sheet output from the printing device.
    Type: Application
    Filed: September 9, 2019
    Publication date: July 14, 2022
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: KOK CHAI CHONG, John J. Cantrell, Suriyaprakash Saravanan, Seng San Koh
  • Publication number: 20220097986
    Abstract: Example media size sensor assemblies and media handling device including the example media size sensor assemblies are disclosed. In an example, the media size sensor assembly includes a sensor to be mounted within the media handling device, the sensor to detect reflected light. In addition, the media size sensor assembly includes a plurality of reflective surfaces to be coupled to a width adjustment wall of a storage tray of the media handling device, such that movement of the width adjustment wall is to align a selected one of the plurality of reflective surfaces with the sensor. The reflective surfaces of the plurality of reflective surfaces are to reflect different amounts of light.
    Type: Application
    Filed: June 21, 2019
    Publication date: March 31, 2022
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: Kok Chai Chong, Suriyaprakash Saravanan, Judy Belle Torrecampo
  • Patent number: 10836176
    Abstract: The subject matter discloses a fluid cartridge comprising a container to hold a predetermined volume of fluid, and a lid for closing the container. The lid comprises a valve-recess and an inlet valve in the valve-recess to transfer a volume of a replacement fluid in the container for replacing depleted volume of fluid in the container. A rocker valve is pivoted in the valve-recess to cover the inlet valve during a regulation phase. The rocker valve is to open the inlet valve during an actuation phase to allow the replacement fluid to enter the container. A spring element is movably disposed on the rocker valve to control actuation of the rocker valve for opening and closing the inlet valve. The spring element slides across the rocker valve, from a regulation zone of the rocker valve to an actuation zone of the rocker valve, to open the inlet valve.
    Type: Grant
    Filed: February 10, 2017
    Date of Patent: November 17, 2020
    Inventors: Paul Mark Haines, Aik Liang Roy Teh, Suriyaprakash Saravanan, Anjan Prabhat Pattathil
  • Publication number: 20200009874
    Abstract: The subject matter discloses a fluid cartridge comprising a container to hold a predetermined volume of fluid, and a lid for closing the container. The lid comprises a valve-recess and an inlet valve in the valve-recess to transfer a volume of a replacement fluid in the container for replacing depleted volume of fluid in the container. A rocker valve is pivoted in the valve-recess to cover the inlet valve during a regulation phase. The rocker valve is to open the inlet valve during an actuation phase to allow the replacement fluid to enter the container. A spring element is movably disposed on the rocker valve to control actuation of the rocker valve for opening and closing the inlet valve. The spring element slides across the rocker valve, from a regulation zone of the rocker valve to an actuation zone of the rocker valve, to open the inlet valve.
    Type: Application
    Filed: February 10, 2017
    Publication date: January 9, 2020
    Inventors: Paul Mark Haines, Aik Liang Roy Teh, Suriyaprakash Saravanan, Anjan Prabhat Pattathil