Patent ID: 7156253

Claim:
An adaptor to enable a person to drink from a cup having a wall with a bead extending around an open end of the cup and located on an exterior surface of the cup, the adaptor comprising: an annular collar having a top surface extending between an inner and outer periphery with the inner periphery defining an opening sized to accommodate the cup during use, the opening being sufficiently smaller than the bead so that the bead engages the collar to hold the cup during use of the adaptor; a lid releasably engageable with the collar, the lid having a channel formed therein with a depending flange inward of the channel, the channel being configured and located to engage at least a portion of the bead when the lid is engaged with the collar, the flange being configured and located to extend into the open end of the cup and engage the wall during use of the adaptor, the collar, channel and flange cooperating to restrain movement of the cup during use of the adaptor and to provide a substantially fluid tight seal with the cup during use of the adaptor when the lid is engaged with the collar, the lid having an aperture on an exterior surface of the lid, with the aperture having at least one opening for fluid flow; and a flexible tether connecting the lid and collar; wherein the top surface further comprises a recessed, lower engaging surface extending around the opening in the collar, the lower engaging surface abutting the bead during use of the adaptor to hold the cup.