Patents by Inventor Lars Tuvin

Lars Tuvin 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).

  • Patent number: 6168641
    Abstract: A vacuum cleaner cyclone separator having a cyclone with a first end wall, a second opposite end wall (35,36,135), and an intermediate part (38,130), which has the shape of either a cylinder or, at least partly, an up-side-down truncated cone. The intermediate part has an outlet opening (39,131) for particles through which particles separated by the cyclone leave from the intermediate part toward the second end wall. The cyclone is, close to the first end wall, provided with a generally tangentially-directed air inlet (33,129) for dust laden air and also has a tube shaped air outlet (50,142) extending from the first end wall (35) toward the intermediate part and communicating with a vacuum source (15,111).
    Type: Grant
    Filed: June 16, 1999
    Date of Patent: January 2, 2001
    Assignee: Akteibolaget Electrolux
    Inventors: Lars Tuvin, Lars Kilström, Stefan Petersson, Patrik Pastuhoff
  • Patent number: 6086649
    Abstract: A holder (10) for a vacuum cleaner dust bag which is removably arranged in the vacuum cleaner and includes a sleeve (14) on which an open end (13) of the bag (11) is received. Two or more clamping blocks (17) at least partly surround the sleeve and can be moved in a radial direction toward and away from the sleeve in order to secure the dust bag to the holder and release the dust bag from the holder.
    Type: Grant
    Filed: February 25, 1998
    Date of Patent: July 11, 2000
    Assignee: Aktiebolaget Electrolux
    Inventors: Lars Tuvin, Goran Sjoberg
  • Patent number: 6052866
    Abstract: An upholstery nozzle for a vacuum cleaner including an inlet part, an outlet part (12) and an intermediate channel (13) extending between the inlet and outlet parts. The inlet part includes an elongated nozzle opening (11a) and a spot suction nozzle 11(b). The spot suction nozzle (11b) is arranged close to the nozzle opening (11a) and is in direct communication with the intermediate channel (13).
    Type: Grant
    Filed: April 23, 1998
    Date of Patent: April 25, 2000
    Assignee: Aktiebolaget Electrolux
    Inventors: Lars Tuvin, Goran Sjoberg
  • Patent number: 5732438
    Abstract: A device for storing nozzles or tools for a vacuum cleaner. The cleaner includes a tube handle (12) to which a tube shaft (13) with a floor nozzle (14) can be secured. The tube handle (12) is attached to a vacuum cleaner hose (11) which is connected to a vacuum cleaner body or source. The device includes a holder (15) which releasably retains several accessories (27,34,39). The holder is located on or adjacent the tube handle (12).
    Type: Grant
    Filed: May 23, 1996
    Date of Patent: March 31, 1998
    Assignee: Aktiebolaget Electrolux
    Inventors: Lars Tuvin, Lars Kilstrom
  • Patent number: 5634239
    Abstract: A vacuum cleaner nozzle having a nozzle body (10) having a nozzle opening (13) facing a surface to be cleaned and one or more scraper blades. The scraper blades have a single, strip-shaped piece (16), made from rubber, plastic or some other elastic material. The blade has a first edge part (18) resting on the surface (19) to be cleaned and a second, opposite edge part which is secured in a holder (17) in the nozzle body. The distance (A) of the holder from the surface being cleaned is mainly constant when the scraper blade is moved forwards or rearwards on a hard surface. The length of the blade (16) extending toward the surface from the holder under free conditions is larger than the distance (A) from the holder to the surface so that the first edge part (18) during forward and rearward movement will trail behind the holder, as seen in the direction of movement of the nozzle.
    Type: Grant
    Filed: April 30, 1996
    Date of Patent: June 3, 1997
    Assignee: Aktiebolaget Electrolux
    Inventors: Lars Tuvin, Holmer Ristau