Patents by Inventor Ernest C. Lowthorp, deceased

Ernest C. Lowthorp, deceased 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).

  • Developing and fusing apparatus
    Patent number: 4091765
    Abstract: A developing and fusing apparatus for applying a single component magnetically responsive dry particulate toner powder to a latent electrostatic image on electrostatic copy paper and fusing the thusly applied toner powder onto the surface of the copy paper with the developing section of the apparatus having a permanent magnet applicator roll assembly which moves the toner powder about the periphery thereof into the vicinity of the copy paper to transfer the toner powder onto the copy paper with the amount of toner powder passing around the applicator roll assembly being controlled by doctor blades, and a cartridge which dispenses the toner powder onto the applicator roll assembly for passage around the applicator roll assembly.
    Type: Grant
    Filed: February 17, 1977
    Date of Patent: May 30, 1978
    Assignee: Vivian L. Lowthorp, Executrix of the Estate of Ernest C. Lowthorp, deceased
    Inventors: Ernest C. Lowthorp, deceased, Frances T. Arnold, Luther R. Winters, Jr., Roy Lippert