Patents by Inventor Leif Naslund

Leif Naslund 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: 5228560
    Abstract: An electrical contact device has a first connector (1) having a surrounded base portion (3). Radially disposed within the base portion is a plurality of contact members (5) with at least a surface portion of the contact members being in electrical contact with the base portion through, at least in part, flexible, electrical conducting connections (6). Each contact member is in the form of a double-armed lever with a first arm (15) and a second arm (16) carrying the surface portion, and each contact member is pivotable about an intermediate portion (19) between the first arm and the second arm. A second connector (2) has an electrical conductive contact surface (26) and is receivable and movable in the first connector. The second connector is pressable against the first arm, such as to pivot the double-armed lever from an open position where the surface portion does not contact the conductive contact surface to a closed position where the surface portion does contact the conductive contact surface.
    Type: Grant
    Filed: December 16, 1991
    Date of Patent: July 20, 1993
    Inventor: Leif Naslund
  • Patent number: 4455880
    Abstract: An electronic transmitter element intended for use in connection with a lifting device in order to generate an electric signal corresponding to the load being handled. The transmitter element comprises a tensile link (1) to which strain gauges are fixedly attached, said tensile link being exerted to tensile stress corresponding to the load handled by the lifting device in order to generate an electric signal corresponding to said load. At least one safety link (3) is disposed in parallel with the tensile link, preferably two safety links on each side of the tensile link and is designed to absorb greater loads than the tensile link. In normal operation the tensile link will absorb the entire load acting on the transmitter element. However, the safety link will take over at least a portion of the load acting on the tensile link if the latter is ruptured or abnormally elongated.
    Type: Grant
    Filed: March 23, 1982
    Date of Patent: June 26, 1984
    Assignee: Handelsbolaget Ornell-Teknik
    Inventor: Leif Naslund
  • Patent number: D271669
    Type: Grant
    Filed: October 8, 1981
    Date of Patent: December 6, 1983
    Assignee: Handelsbolaget Ohrnellteknik
    Inventors: Hakan Ohrnell, Leif Naslund