Patents Assigned to Linvar Limited
  • Structural joints
    Patent number: 4469030
    Abstract: A tubular member 10 has another tubular member 12 slidable therein, and an insert 20 for locating the member 12 inside the member 10. A flange 14 on the member 12 carries a work top 16 of a work bench. The insert 20 prevents movement of the lower end of the member 12 in relation to the member 10, and so makes the whole structure rigid. The member 12 supports equipment such as a light 24.
    Type: Grant
    Filed: September 29, 1980
    Date of Patent: September 4, 1984
    Assignee: Linvar Limited
    Inventor: Ernest E. Hopwell
  • Structural joints
    Patent number: 4378173
    Abstract: A structural joint suitable for a frame member for furniture, e.g. a leg for a work bench, comprises two tubular members 10, 11 slidable one inside the other. Each member 10, 11 has a longitudinal slot 13 through which a wing nut 16 is passable. The members are secured by engaging a screw 17 in the nut 16 which is so long that it cannot fully rotate inside the inner member 11. Preferably, the slot 13 has enlarged portions 14 which alone can pass a boss of the nut 16.
    Type: Grant
    Filed: September 29, 1980
    Date of Patent: March 29, 1983
    Assignee: Linvar Limited
    Inventor: Ernest E. Hopwell