Single-piece plastic closure cap

Claim 1

A closure cap formed of plastic for containers or the like, comprising a cap member having a substantially ring-shaped outer wall provided with an inwardly protruding annular bead at the central region of the axial length of said outer wall, a strap partially enclosing said ring-shaped outer wall of the cap member and disposed adjacent the free end of said outer wall, said strap extending along an arc which exceeds 180* and is less than 360* and having terminal regions which are bent toward the outer wall of the cap and connected with the outer wall of said cap member at spaced and neighboring positions, the end of the bent terminal regions of said strap forming an obtuse angle with the neighboring sections of said strap, the end of the bent terminal regions of the strap adjacent the top of the cap member being provided each with a wedge-shaped support wall connected with the outer wall of said cap member and extending toward the closed end of the cap member over said inwardly projecting bead, whereby said strap provides a point of leverage at the portion of said bead closest to the free end of said outer wall to facilitate removal of said cap from containers or the like.