Patents by Inventor Lars-Ingvar Nordström

Lars-Ingvar Nordström 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).

  • Tube of fabric reinforced PVC
    Patent number: 7841367
    Abstract: A tube (1) of fabric reinforced PVC for suspension from a ceiling of a tunnel or the like comprises a tube shaped fabric with an internal and an external coating of PVC. The internal coating is of black, electrically conducting PVC and the external coating is of white, electrically isolating PVC. The tube (1) is provided with an external, longitudinal strip (2) of black, electrically conducting PVC in contact with the internal coating. The strip (2) is earthed by a suspension arrangement (3-5) for the tube (1) to the ceiling.
    Type: Grant
    Filed: May 13, 2009
    Date of Patent: November 30, 2010
    Inventor: Lars-Ingvar Nordström
  • TUBE OF FABRIC REINFORCED PVC
    Publication number: 20090288727
    Abstract: A tube (1) of fabric reinforced PVC for suspension from a ceiling of a tunnel or the like comprises a tube shaped fabric with an internal and an external coating of PVC. The internal coating is of black, electrically conducting PVC and the external coating is of white, electrically isolating PVC. The tube (1) is provided with an external, longitudinal strip (2) of black, electrically conducting PVC in contact with the internal coating. The strip (2) is earthed by a suspension arrangement (3-5) for the tube (1) to the ceiling.
    Type: Application
    Filed: May 13, 2009
    Publication date: November 26, 2009
    Inventor: Lars-Ingvar Nordstrom
  • Beam assembly in a tarpaulin handling machine
    Patent number: 6928784
    Abstract: A tarpaulin can be connected by clamp devices to a beam assembly for transfer of the beam through a tarpaulin handling machine. The beam assembly has a number of parallel, through beam rods and on each beam rod a number of beam tubes, which are alternatingly rigidly connected to a corresponding beam tube on a neighboring beam rod and are rotatable on the beam rod.
    Type: Grant
    Filed: February 8, 2002
    Date of Patent: August 16, 2005
    Assignee: Lars-Ingvar Nordström
    Inventors: Lars-Ingvar Nordström, Kent Stridh
  • Clamp device for a tarpaulin handling machine
    Patent number: 6715811
    Abstract: A clamp device (1) is intended for connecting a tarpaulin (23) to a movable beam assembly (25) in a tarpaulin handling machine. The clamp device (1) has as its clamping member a freely rotatable, eccentric roller (4) adjacent a base member (7), the tarpaulin being inserted between the roller and the base member and held there by the roller.
    Type: Grant
    Filed: January 28, 2002
    Date of Patent: April 6, 2004
    Assignee: Lars-Ingvar Nordström
    Inventors: Lars-Ingvar Nordström, Thomas Loeb
  • Beam assembly in a tarpaulin handling machine
    Publication number: 20020112440
    Abstract: 1. A tarpaulin (23) can be connected by means of clamp devices (1) to a beam assembly (25) for its transfer through a tarpaulin handling machine. The beam assembly has a number of parallel, through beam rods (30) and on each beam rod a number of beam tubes (33), which are alternatingly rigidly connected to a corresponding beam tube on a neighboring beam rod and are rotatable on the beam rod (30).
    Type: Application
    Filed: February 8, 2002
    Publication date: August 22, 2002
    Applicant: Lars-Ingvar NORDSTROM
    Inventors: Lars-Ingvar Nordstrom, Kent Stridh
  • Clamp device for a tarpaulin handling machine
    Publication number: 20020109366
    Abstract: A clamp device (1) is intended for connecting a tarpaulin (23) or the like to a movable beam assembly (25) in a tarpaulin handling machine. The clamp device (1) has as its clamping member a freely rotatable, eccentric roller (4) adjacent a base member (7), the tarpaulin being inserted between the roller and the base member and held there by the roller.
    Type: Application
    Filed: January 28, 2002
    Publication date: August 15, 2002
    Inventors: Lars-Ingvar Nordstrom, Thomas Loeb
  • Joint at ventillating ducts
    Patent number: 6425608
    Abstract: A joint between the ends of two flexible ventilating ducts (10A, 10B), an end (11) of one of the ducts (10A) having a stiffening ring (13) and being telescoped over the other duct (10B), and an outer capping (14) connected to the other duct (10B) enclosing the joint between the telescoped ducts.
    Type: Grant
    Filed: November 21, 2000
    Date of Patent: July 30, 2002
    Inventor: Lars-Ingvar Nordström