LAMINATE RIVET Russian patent published in 1999 - IPC

FIELD: manufacture of fastening articles, possibly for building, machine engineering and other metallic structures, in aircraft and missile technology, in ship building. SUBSTANCE: laminate rivet includes at least two subareas of materials. At least a part of line of cross section boundary and(or) at least a part of line of boundary of material subareas is in the form of fragment of oblique cone section of straight circular cone. EFFECT: constructionally caused directivity of strength properties, enhanced efficiency of fixation, easy identification of rivet maker. 16 cl, 16 dwg