Patents by Inventor Ulf Gauffin

Ulf Gauffin 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).

  • Arrangement in plant equipment for supplying a binding agent directly to a building element
    Patent number: 4634347
    Abstract: The invention relates to an arrangement in plant equipment for directly supplying to a building element a binder comprising, for example, mortar of pumpable consistency and containing water. The plant equipment includes a vessel for ready-mixed binder, a motor-driven pump and a pump conduit (3) for supplying binder under pressure to a nozzle (4). In order to prevent liquid from being expelled from the binder when the pump is stopped, so as to leave a dry plug in the nozzle, means (18) are provided for maintaining the pressure in and adjacent the nozzle (4) at a level which coincides at least substantially to atmospheric pressure.
    Type: Grant
    Filed: April 29, 1985
    Date of Patent: January 6, 1987
    Assignee: Allman Byggnadsservice AB ABS
    Inventors: Ulf Gauffin, Bjorn Soderlund
  • Structural support
    Patent number: 4513551
    Abstract: A structural support made of sheet metal or like material has a surface (2,3) intended to support a building panel or some other structural member, which is secured to the surface by means of screws or like fasteners. In order to reduce the force required to drive the screws or like fasteners, such as nails, into the support, the aforementioned surface is provided with closely lying weakened areas within a fastening area (9,10), the points of the fasteners being guided into the weakened areas by inclined surfaces adjacent thereto.
    Type: Grant
    Filed: March 31, 1983
    Date of Patent: April 30, 1985
    Inventors: Ulf Gauffin, Mikael Hellsten