Fastener device and method for attaching polyester fiber panels to a substrate
AssigneeRotofast Inc.
InventorMacDonald Joseph Gillis
Life of this patent
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Abstract
A method and fastening device for attaching polyester fiber panels to a substrate, such as a wall or a ceiling. The fastening device comprises an anchor part for attachment to the substrate and a fastening part for attachment to the panel. The fastening part comprises a cylindrical portion, a helical member surrounding the cylindrical portion for penetrating the panel upon rotation of the helical member and a recess in the cylindrical portion for receiving the anchor part. The thread angle of the leading edge of the helical member is greater than the thread angle of the trailing edge.
Claims18
A fastener device for attaching a panel to a substrate, comprising:
- an anchor part for attachment to the substrate;
- a fastening part for attachment to the panel, the fastening part comprising:
- a cylindrical portion;
- a helical member surrounding the cylindrical portion for penetrating into fibers of the panel upon rotation of the helical member;
- a recess in the cylindrical portion for receiving the anchor part,
- wherein the thread angle of the leading edge of the helical member is greater than the thread angle of the trailing edge and
- wherein the panel is made of polyester fiber material and wherein there is an internal structure within the recess of the cylindrical portion, the internal structure comprising a raised interference face and a drive member slot.
A fastener device for attaching a panel to a substrate, comprising:
- a fastening part for attachment to the panel, the fastening part comprising:
- a cylindrical portion;
- and
- a helical member surrounding the cylindrical portion for penetrating into fibers of the panel upon rotation of the helical member;
- and
- a recess in the cylindrical portion, wherein the recess has an internal structure comprising a raised interference face and a drive member slot,
- wherein the thread angle of the leading edge of the helical member is greater than the thread angle of the trailing edge, and
- wherein the panel is made of polyester fiber material.
A method for attaching a polyester fiber panel to a substrate using a fastener, the fastener having a cylindrical portion, a helical member surrounding the cylindrical portion where the thread angle of the leading edge of the helical member is greater than the thread angle of the trailing edge, a compression flange surrounding the cylindrical portion, and a recess in the cylindrical portion, wherein the recess has an internal structure comprising a raised interference face and a drive member slot, the method comprising:
- cutting a recess into the back side of the panel;
- rotating the fastener into the recess,
- wherein the helical member penetrates into the fibers of the panel, and
- wherein the flange compresses the fiber of the panel and increases the density of fiber around the helical member.
Dependencies are inferred from the claim text.