Patents by Inventor Carl-Gustaf Sondén

Carl-Gustaf Sondén 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).

  • Kit and method for producing a connector for fluid pipe elements
    Patent number: 5405174
    Abstract: A kit for producing a non-straight connector for fluid pipe element comprises loose sleeve couplings and at least one flat blank which has been given such a shape and such dimensions that, after forming thereof and interconnecting its opposite ends, it is connectable with the sleeve couplings by means of a peripheral joint, thereby forming an intermediate segment.
    Type: Grant
    Filed: April 9, 1993
    Date of Patent: April 11, 1995
    Assignee: Lindab AB
    Inventors: Carl-Gustaf Sonden, Kenneth Lennartsson
  • Circular sleeve coupling
    Patent number: D360020
    Type: Grant
    Filed: April 9, 1993
    Date of Patent: July 4, 1995
    Assignee: Lindab AB
    Inventors: Carl-Gustaf Sonden, Kenneth Lennartsson