Plastic anchor for drywall, plaster, brick and concrete
AssigneeCobra Fixations Cie. Ltee.-Cobra Anchors Co. Ltd.
InventorsPierre McDuff, Alexandre Pollak, Lang Nguyen, William A. Crossley
Life of this patent
Estimating the term…
Loading patent…
AssigneeCobra Fixations Cie. Ltee.-Cobra Anchors Co. Ltd.
InventorsPierre McDuff, Alexandre Pollak, Lang Nguyen, William A. Crossley
Estimating the term…
An anchoring device for insertion in a hole provided in a structure such as a wall (hollow or solid) comprises proximal and distal sections. The proximal section includes a head defining an aperture for receiving a fastener, and the distal section includes a pair of expandable wings displaceable between collapsed and expanded positions. Each wing is biased towards its expanded position such that the wings can engage the structural material delimiting the hole or a distal surface of the structure. The distal section comprises, proximally of the wings, a variable-length flexible portion for allowing the wings to engage the distal surface of the structure for various structure thicknesses. The distal section comprises, distally of the wings, a tip section adapted to spread outwardly when engaged by the fastener. The proximal section comprises a pair of legs each having a toothed rack for engaging the structural material.
An anchoring device for insertion in a hole provided in a structure, in combination with a fastener, the anchoring device comprising proximal and distal sections, said proximal section comprising a head defining an aperture for receiving the fastener, said distal section comprising at least one expandable wing displaceable between inwardly collapsed and outwardly expanded positions, said wing being adapted in said expanded position to at least one of engaging structural material delimiting the hole and engaging a distal surface of the structure, wherein said proximal section includes at least one lateral retention member, the fastener when being introduced in the anchoring device being adapted to directly act on the retention member such that the retention member engages the structural material, wherein said proximal section comprises at least one leg, said leg including said at least one lateral retention member, wherein there are provided two said legs separated by a pair of slots, and wherein said distal section comprises at a proximal end thereof at least one wedge portion adapted to engage at least one of said slots when said distal section is drawn towards said proximal section, for spreading at least one of said legs outwardly into the structural material.
An anchoring device for insertion in a hole provided in a structure, in combination with a fastener, the anchoring device comprising proximal and distal sections, said proximal section comprising a head defining an aperture for receiving the fastener, said proximal section comprising at least one leg, said distal section comprising a spreading member, said distal and proximal sections being displaceable towards one another such that said spreading member causes said leg to displace outwardly into engagement with the structural material delimiting the hole, wherein said leg includes at least one lateral retention member, the fastener when being introduced in the anchoring device being adapted to directly act on the retention member such that the retention member engages the structural material.
Dependencies are inferred from the claim text.