Patents by Inventor Wilhelm Ramsay

Wilhelm Ramsay 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).

  • Fluid jet printing device
    Patent number: 4982200
    Abstract: A fluid jet printing device has a source (6 to 10) for supplying fluid under pressure to a printer head (1). The source consists of an interchangeable, pressure-tight, inflexible container (6) filled with pressurizing gas and printing fluid. The container is detachably connected to an inlet port connected to a pressure reducing valve for supplying the fluid under constant pressure to the printer head. Preferably, the fluid container has the form of a spray-dispenser of a `throw-away` type, as known for hairsprays or the like.
    Type: Grant
    Filed: January 13, 1987
    Date of Patent: January 1, 1991
    Assignee: Swedot System AB
    Inventor: Wilhelm Ramsay