Patent ID: 8727166

Claim:
A lid for covering an interior of a medical waste receptacle base, said lid comprising: a cover sized and shaped for covering the interior of the medical waste receptacle base, the cover having an opening sized for passing medical waste into the interior of the base; a pair of parallel carriers extending toward opposite sides of the opening, each of said parallel carriers comprising a vertical rail and a carrier flange extending from the vertical rail; and a closure sized and shaped for blocking the opening, said closure having a central portion, a peripheral flange surrounding the central portion, and a resiliently compliant lip extending from the flange and away from the interior of the medical waste receptacle base when the cover is covering the interior of the base, said lip engaging the vertical rail of each carrier to center the closure between the carriers for guiding the closure into alignment with the opening, the peripheral flange of the closure being positioned to engage the carrier flange of each carrier when the lip engages the vertical rail of each carrier.