The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 21, 1997
Filed:
Mar. 26, 1996
Udo Schutz, Selters, DE;
Protechna S.A., Fribourg, CH;
Abstract
The pallet container has a plastic inner container and a lattice jacket of vertical and horizontal lattice rods (9, 10) of metal. Stacking and transport safety is achieved by special design of the intersections (15) where the lattice rods (9, 10) are welded to one another. At these intersections (15) lattice rods (9, 10) are indented to form double-walled, cavity-like depressions (16). The depressions (16) have a center elevation (17). At each intersection (15) between longitudinal edges (18, 19) of center elevations (17) of depressions (16) of two lattice rods (9, 10) which lie at right angles on top of one another, this shaping of the lattice rods (9, 10) results in the formation of four contact points (20) which lie in one plane, each with a material accumulation which corresponds to four times the wall thickness of the lattice rods. The lattice rods (9, 10) are joined to one another by electrical resistance pressure welding or electrical spot welding at intersections (15) in the area of four contact points (20). The sections (25, 26) of cavity-like depression (16) of the lattice rods (9, 10), the sections adjacent on each side to elevation (17) with contact and welding points (20), form bending points of limited elasticity with a bending resistance moment which is reduced relative to the elevation (17) to relieve the welds at the intersections (15) under static and/or dynamic loading of the lattice jacket.