Back to results
US 4,364,216 AGranted
Structural unit in the form of a profiled bar
OwnerErnst Kollerinventor
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
OwnerErnst Kollerinventor
Estimating the term…
The disclosure concerns a multipurpose structural unit for fastening parts of buildings, or the like, together. The unit comprises a longitudinally elongaged bar, which may be either solid or hollow and which may be comprised of various different materials. The bar has two opposite transverse sides and two opposite end sides which joint the transverse sides. At least one longitudinal groove is defined in each transverse side of the structural unit, and a longitudinal groove may also be defined in each end side of the structural unit. The surfaces between the edge of the groove in the transverse side and the end side of the structural unit slant obliquely inwardly toward the center of the structural unit, whereby the structural unit has a generally octagon shaped exterior profile or cross-section. The cross-section shapes of the longitudinal grooves are disclosed. Various possible inserts and configurations for using the structural unit in combination with other structural elements and parts are disclosed, principally through insertion of the margins of the various structural elements and parts into the grooves in the structural unit.
A structural element in the form of a shaped bar for attaching building parts and the like, having at least four longitudinal grooves which are arranged 90.degree. apart on its periphery, of which grooves each of two longitudinal grooves arranged opposite each other has an outer section which becomes narrower trapezoidally from the outside to the inside and an inner section adjoining same which becomes wider from the narrowest point of the groove towards the inside, the base surface and the side surfaces of each of said longitudinal grooves being substantially flat and extending parallel to the corresponding surfaces of the other longitudinal groove arranged opposite same, the other two longitudinal grooves arranged 90.degree. from the first mentioned two longitudinal grooves having a cross-sectional shape which becomes trapezoidally larger from the outside to the inside, the base surface and side surfaces of each of the said other two longitudinal grooves extending parallel to the corresponding surfaces of the other said longitudinal groove opposite same, said structural element having four flat outer surfaces which lie between the four longitudinal grooves and extend crosswise parallel to each other and four additional surfaces each extending between a boundary of a groove and one of said four flat outer surfaces the distance between diagonally opposite additional surfaces being greater than the distance between the first mentioned flat surfaces.
Dependencies are inferred from the claim text.