Railway-chair Making Patents (Class 29/16)
  • Patent number: 6442824
    Abstract: A compromise rail is formed of a single length of stock rail. One end of the rail is forged over a distance of 19-48 inches to reduce the height of the forged portion, which is then machined to match the running rail to which that end is to be attached. The invention avoids the expense and inconvenience of flash butt welding a forged section to a uniform profile rail as is done in prior art compromise rails.
    Type: Grant
    Filed: October 11, 2001
    Date of Patent: September 3, 2002
    Assignee: Vae Nortrak North America, Inc.
    Inventors: Tom Stanley, Paul Valastin
  • Patent number: 4938603
    Abstract: A lock-release mechanism is mounted on the back of a foldable high chair to control relative movement between the chair back and the underlying seat and leg assembly. In use, the bolt-release mechanism can be actuated manually to permit the high chair to be folded from an unfolded use position to a partly folded safety stop position and a fully folded storage position.
    Type: Grant
    Filed: February 10, 1989
    Date of Patent: July 3, 1990
    Assignee: Cosco, Inc.
    Inventors: Dennis M. Turner, Robert A. Schwartzkopf, Donald L. Gerken
  • Patent number: 4141500
    Abstract: A railway tie plate has at least one rib to locate a railway rail and two arches under which parts of rail clips can be driven parallel to the rib. It can be made by deformation of a conventional tie plate designed for use with fastening devices for holding the rail on to the tie plate other than rail clips which are driven parallel to the rail.
    Type: Grant
    Filed: June 9, 1977
    Date of Patent: February 27, 1979
    Assignee: Pandrol Limited
    Inventor: Nelson A. Gragnani
  • Patent number: RE32894
    Abstract: A railway tie plate has at least one rib to locate a railway rail and two arches under which parts of rail clips can be driven parallel to the rib. It can be made by deformation of a conventional tie plate designed for use with fastening devices for holding the rail on to the tie plate other than rail clips which are driven parallel to the rail.
    Type: Grant
    Filed: November 6, 1980
    Date of Patent: March 28, 1989
    Assignee: Pandrol Limited
    Inventor: Nelson A. Gragnami