Male Touch Fastener Element
AssigneeVelcro Industries B.V.
InventorsAlmin Idrizovic, Christopher M. Gallant, William D. Grenier
Life of this patent
Estimating the term…
Abstract
A touch fastener has a base and an array of discrete fastener elements each extending from the base and together forming with the base a contiguous mass of resin. Each discrete fastener element includes a stem rising from the base, and a head overhanging the base from a front side of the stem to a distal edge, the front side of the stem, an underside of the head, and an upper surface of the base together forming, in side profile, a generally curved retention space boundary surface such that the boundary surface forms, at its innermost extent, a retention cavity defined between curvature discontinuities spaced from both the base and the distal edge.
Claims18
1-26. (canceled)
A touch fastener comprising:
- a base;
- and
- an array of discrete fastener elements each extending from the base and together Forming with the base a contiguous mass of resin;
- wherein each of Ute Fastener elements comprises:
- a stem rising from the base;
- and
- a head overhanging the base, the stem, underside of the head, and an upper surface of the base together forming a retention space boundary surface having a region of innermost extent;
- wherein the region of innermost extent is spaced above the upper surface of the base;
- and
- wherein the stem has a thickness, measured parallel to the base at the region of innermost extent in a vertical plane intersecting the boundary surface, that is at least twice an elevation of the region of innermost extent above the upper surface of the base.
A touch fastener comprising:
- a base;
- and
- an array of discrete fastener elements arranged in rows and extending from the base, the fastener elements and base together forming a contiguous mass of resin;
- wherein each of the fastener elements comprises:
- a stem rising from the base;
- and
- a head overhanging the base and having a distal tip directed along the row of the fastener element, the stem, underside of the head, and an upper surface of the base together forming a retention space boundary surface having a region in extent;
- wherein the region of innermost extent is spaced above the upper surface of the base;
- and
- wherein the stem has a thickness, measured parallel to the base at the region of innermost extent in a vertical plane intersecting the boundary surface, that is at least 1.7 times an elevation of the region of innermost extent above the upper surface of the base.
Dependencies are inferred from the claim text.