Patents by Inventor Alvaro Neff Valadares

Alvaro Neff Valadares 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).

  • Vertical rotary screen printing machine and ink supply therefore
    Patent number: 4103615
    Abstract: A vertical rotary screen printing machine has a rotary printing cylinder in which is housed a combination dye dispensing bar and squeegee arrangement with which is associated a weir which controls dye flow.The arrangement is adjustable, preferably bodily, (a) radially to effect variation in contact pressure between the squeegee and printing cylinder; and (b) rotatably to effect variation in the position of the line of contact of the squeegee relative to the printing cylinder.
    Type: Grant
    Filed: July 29, 1976
    Date of Patent: August 1, 1978
    Assignee: Sir James Farmer Norton & Co., Limited
    Inventors: Edmundo Novas Cruz, Alvaro Neff Valadares