Lisi Aerospace

The Monadnock Company

Florent Verdier

Igor Komsitsky

Benoit Regnard

Javier Torres

Alexandre Berthou

Charles Pham

Steve Misias

Jérémy Letuve

A fastener for assembling at least two structural elements having an aperture, may have a fastener comprising an enlarged head () and a shank () exhibiting, prior to fitting, an outside diameter (D) greater than an inside diameter (D) of the aperture, and a locking portion comprising a screw thread or annular grooves. The fastener further comprises a lubricating sacrificial ring () on the exterior surface of the fastener, extending at least between a distal end of the shank and a proximal end of the locking portion, said ring having, before the fastener is fitted into the structure, an outside diameter greater than a diameter of the aperture. The sacrificial ring comprises a polymer resin forming a matrix encapsulating dispersant molecules and oil molecules. The fastener assembly may apply to the assembly of aircraft structures.

Fastener with lubricating ring for interference fitting, and assembly method using such a fastener

A cage nut and a method of installing a cage nut include a nut with a tubular body and a flange, and a nut support having a nut cage for receiving the nut. The nut support includes a tubular portion wherein an external surface of the tubular portion includes longitudinal splines having a diameter smaller than a diameter of a bore of a workpiece, and at least two longitudinal ribs having a diameter greater than the diameter of the bore.

Floating nut

The present invention pertains to a washer () for a female fastener (A), particularly a nut or collar, said washer comprising an annular base () and a substantially cylindrical skirt () of an outer periphery of the annular base, said annular base comprising a central orifice () coaxial with the axis () of the skirt, characterized in that the annular base is at least partially covered with a layer () of a viscous composition capable of forming a liquid-tight coating through polymerization. When installing a nut having such a washer onto a male fastener such as a pin (), the spreading of the viscous layer makes it possible to fill in the gaps () of the assembly, the polymerization of the composition ensuring its leak-tightness afterwards.

Leak-proof fastening device

Panel fasteners, panel assemblies, methods of assembly and installation of panel assemblies and panel fasteners, anchor systems, anchor systems with captive fasteners and assemblies are disclosed.

Panel fastener, panel assembly and methods of assembly and installation

A device () for assembling pre-bored () elements (), the elements together having a reference thickness () that may vary up to an actual maximum thickness (), may include

Growing community of inventors

Rueil Malmaison, France

Florent Verdier