Patents by Inventor Lars I. Setterberg

Lars I. Setterberg 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).

  • Vibrator equipped with fastening device
    Patent number: 4636086
    Abstract: A vibrator with vibratory action for the vibration of objects is described, where the vibrator is provided with an attachment device for attaching to the object which is to be vibrated, and is distinguished in that the attachment device constitutes a magnet, preferably an electromagnet.
    Type: Grant
    Filed: February 13, 1985
    Date of Patent: January 13, 1987
    Inventor: Lars I. Setterberg
  • Method of vibrating bulk material in moulds
    Patent number: 4614436
    Abstract: A method of vibrating mass material in moulds or forms is described, there being used a vibrator attached to the mould, for such as the vibration of refractory masses for lining metallurgical vessels or the vibration of concrete in forms. The invention is distinguished in that vibration takes place continuously during movement of the vibrator on the mould in time with the mould being filled with mass material. The vibrator, which is attached to a plate having a built-in magnet, preferably an electromagnet, is attached to the mould and moved on it with the aid of a device acting on the vibrator itself, the device being controlled by a driven member, e.g. a screw, a power ram or the like.
    Type: Grant
    Filed: February 13, 1985
    Date of Patent: September 30, 1986
    Inventor: Lars I. Setterberg