Patents by Inventor Arne Hill

Arne Hill 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: 4584810
    Abstract: A metal space truss comprises two generally horizontally extending and vertically spaced lattices, an upper one composed of two intersecting groups of parallel steel T-bars having downwardly directed webs with generally vertically oriented side faces forming one or more inner corners in each node, and a lower one composed of two intersecting groups of parallel steel bars also having cross sections presenting generally vertically oriented side faces forming in each node one or more inner corners being unobstructed in a direction towards said upper lattice. The two lattices are interconnected by a plurality of struts, each of which has a generally trough-shaped cross section and extends from a first node in said upper lattice to a second node in said lower lattice in a manner to form an oblique angle with the respective planes of the two lattices and also an oblique angle to the bars thereof.
    Type: Grant
    Filed: May 31, 1984
    Date of Patent: April 29, 1986
    Inventor: Arne Hill
  • Patent number: 4506487
    Abstract: In a steel truss an upper longitudinal beam and a lower longitudinal beam are interconnected at their respective ends by vertical posts, and between their ends by a plurality of mutually intersecting, obliquely extending struts and ties only. Each end post is composed of two parts of substantially equal lengths, which are interconnectable end to end, and each strut and tie is composed of two parts, which are interconnectable at the intersection between them, whereby the truss may be factory-made in sections of moderate size for convenient transportation to the building site, where the assembly of the same requires only a minimum of work.
    Type: Grant
    Filed: March 10, 1983
    Date of Patent: March 26, 1985
    Inventor: Arne Hill