Patent ID: 7225510

Claim:
A touch fastener comprising: a sheet-form base; and a plurality of hook member groupings comprising at least three hook members, each of the hook members comprising a stem portion extending outwardly from and integrally with the sheet-form base; and a crook integrally formed with and arching along a curved axis from the stem to a tip; adjacent hook member groupings being separated by regions of the sheet-form base that are substantially free of hook members, each of the regions spanning a distance that is greater than a distance between adjacent hook members of the hook member groupings, wherein each of the hook members has a leading edge and a trailing edge defining therebetween an apex angle and includes a central axis bisecting the apex angle and intersecting a plane parallel to the sheet-form base, the central axes of the hook members and the plane parallel to the sheet-form base forming therebetween at least three different base angles with respect to a common base reference, and each of the central axes of the hook members residing in a common plane.