Patent ID: 7934297
Filing Date: 2011-05-03
Classification: B65D,Y10T

Abstract:
1. A twist off tamper-proof fastener that requires destruction for removal, comprising in combination: an elongate strap having a first side portion, an opposing second side portion and tapered to a rounded tip at one end portion; plural parallel adjacent transverse teeth defined in the first side portion and in the second side portion; a head portion interconnected with the elongate strap opposite the rounded tip, the head portion having, a notch defined in and extending circumferentially about the elongate strap immediately adjacent the head portion that creates reduced resistance to shearing forces but is resistant to tensive forces; the rounded tip and a length of the elongate strap may pass through the transverse portion of the T slot channel in only one direction and not removed therefrom; the twist off fastener must be destroyed to be removed; and the fastener is breakable without tools by a user manually grasping and twisting the head portion using the first and second wings for leverage which focuses shearing forces at the circumferentially extending notch causing the fastener to break at the circumferentially extending notch.