Patents Assigned to Raja Tuli
  • Patent number: 6256651
    Abstract: A workflow system and program for organizing the time and priorities of a user, wherein the information input by a user into a spreadsheet is generated by the program into a bar graph. It is possible for a user to revise the spreadsheet at any time, and the program will update the bar graph accordingly. In a further embodiment, it is possible for multiple users to be connected together via a computer network. Some users are classified as secondary users, and are primarily employees. Secondary users have access to their respective spreadsheets and bar graphs. One user is classified as a primary user, and is generally a manager. The primary user has access to two windows. In the first window, all of the spreadsheets of the secondary users are displayed. The primary user can modify the data in the spreadsheets and the program will update the bar graphs accordingly.
    Type: Grant
    Filed: June 20, 1997
    Date of Patent: July 3, 2001
    Assignee: Raja Tuli
    Inventor: Raja Singh Tuli
  • Patent number: 6154242
    Abstract: A thermal print head arrangement for a thermal printer in which print lines of printing elements of adjacent print heads are parallel and spread across the width direction of a recording sheet, perpendicular to the lengthwise direction of travel of the recording sheet, with any two adjacent print heads having opposite orientations facing each other is provided. Print heads are cut at an oblique angle at both ends thus allowing them to be closely and consecutively arranged in alternate dispositions. The method for alignment of the print heads, involves the use of a microscope positioned above print elements of print heads. An alignment marker of the microscope's eyepiece is used to position the print heads on the print head support. Each adjacent print head is positioned with its oblique cut edge against the similar cut edge of the first print head and displaced to obtain the distance between end print elements of adjacent print heads equal to the internal distance of all print elements of each print head.
    Type: Grant
    Filed: March 16, 1998
    Date of Patent: November 28, 2000
    Assignee: Raja Tuli
    Inventor: Raja Singh Tuli
  • Patent number: 6149329
    Abstract: A wide format versatile printing mechanism is provided which has ribbon tensioning means to equalize the surface tension forces across the ribbon and remove all wrinkles. In one embodiment a cambered rod is introduced between the print head and the ribbon feed roll to apply an uneven force across the ribbon's width from its uncoated side. The cambered rod is fixed between two lateral lid side plates by two screws having their axis coaxial with the axis of the cambered rod which have at one of the end cut some radial grooves. The cambered rod can be rotated around its axis and positioned under different angles around its axis by means of a set screw through the lid side plate which corresponds with the radial grooves of the cambered rod's end, offering a variation of the tensile forces in the ribbon. In another embodiment, a second rotating cambered rod is located between the print head and ribbon take-up roll to apply an uneven tensile force across the ribbon's width from its uncoated side.
    Type: Grant
    Filed: January 22, 1998
    Date of Patent: November 21, 2000
    Assignee: Raja Tuli
    Inventor: Raja Singh Tuli
  • Patent number: 6079813
    Abstract: This invention relates to a high speed print head for an inkjet printer which involves the integration of stressed thin film technology. The stressed thin film is applied over a basic substrate and some cavities are etched underneath the film creating a membrane film which has the tendency to bulge outward over cavity areas under the effect of its internal compressed forces. The membrane film, and the bottom of the cavity, have electrodes deposited. An electric signal corresponding with input data is applied to two electrodes creating an electric field between electrodes. As a result, the membrane film is attracted and repelled against the fixed cavity bottom, following the electric signal and providing a variation of an adjacent ink chamber's volume ejecting an ink drop. In its displacement, the membrane film snaps, after passing the zone where the force created by the electric field adds to the internal compressed forces of the film, accelerating its displacement from one stable position into another.
    Type: Grant
    Filed: October 27, 1997
    Date of Patent: June 27, 2000
    Assignee: Raja Tuli
    Inventor: Raja Singh Tuli