Patent ID: 7810663

Claim:
A tamper-evident bottle cap comprising: a collar having an attachment feature residing in a horizontal plane for attaching the cap to a bottle; a mouthpiece connected to the collar for drinking liquid from the bottle; a cover hingedly attached to the collar and having a closed position wherein the mouthpiece is covered and an open position wherein the mouthpiece is uncovered to allow drinking; and a tamper-evident strap having a lower portion hingedly attached to the collar, and an upper portion non-disengageably engagable with the cover when the cover is placed in the closed position and remaining non-disengageably engaged with the cover thereafter when the cover is placed in the open position, wherein the tamper-evident strap is severable to separate the upper portion from the lower portion when the cover is opened, and wherein the lower portion is biased towards the horizontal plane when detached from the upper portion and moves outward from the cap providing a visual indication that the cap has been opened, where: the upper portion of the tamper-evident strap includes a lateral slot; and the cover includes an engagement mouth, the upper portion of the tamper-evident strap passing therethrough, the engagement mouth having a lip for engagement with the lateral slot.