Patent ID: 7640616

Claim:
A mop head wringing mechanism, comprising: a first sleeve having a helical-shaped spline extending at least partially around an external face thereof; a second sleeve slideably engaged over the first sleeve, wherein the second sleeve has a spline engaging portion in constrained engagement with the helical-shaped spline of the first sleeve whereby translation of the second sleeve with respect to the first sleeve causes rotation of the second sleeve with respect to the first sleeve; a slip member engaged with the second sleeve, wherein the slip member is substantially constrained from lateral movement with respect to the second sleeve and is engaged with the second sleeve in a manner enabling rotation of the second sleeve with respect to the slip member; and a control member coupled to the slip member such that movement of the control member from a first position to a second position causes the second sleeve to translate from an at-rest position to a displaced position whereby the second sleeve rotates from an at-rest angular position relative to the first sleeve to a displaced angular position further comprising: a rigid linkage member connected between the slip member and the control member.