Patents by Inventor John E. Bury

John E. Bury 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).

  • Drive mechanisms for inked ribbon cassettes
    Patent number: 4534667
    Abstract: In a stuffed inked ribbon cassette in which ribbon in convoluted form in a stuffing chamber is withdrawn under tension from an outlet and returns along an inlet after passage past a printer, it has been found that a drive wheel having a ratchet tooth form gives surprisingly effective traction on the ribbon. The drive wheel may be used with an idler wheel having a ratchet tooth form or in another embodiment there may also be a simple opposed spring, the ribbon passing between the drive wheel and the idler wheel.
    Type: Grant
    Filed: October 11, 1983
    Date of Patent: August 13, 1985
    Assignee: Grafton Limited
    Inventor: John E. Bury
  • Unifilled tape cassette
    Patent number: 4415285
    Abstract: An unfilled assembled cassette for fitting to the printhead or platform of a printer or the like has a closed chamber to be packed with inked ribbon and a short length of noninked messenger or leader ribbon threaded along the intended ribbon path. To fill the cassette, ink impregnated ribbon is joined to the messenger ribbon and then wound into the cassette while the messenger ribbon is withdrawn, after which the ends of the ink impregnated ribbon are joined to form a continuous band.
    Type: Grant
    Filed: April 26, 1982
    Date of Patent: November 15, 1983
    Assignee: Grafton Limited
    Inventor: John E. Bury