Abstract: Said floating group comprises: a drum (20) aligned with a center line (M) which rotates within a wrapping bin (10) driven by a motor (32), and when it rotates it creates, by an effect of masses unbalance, an actual rotation axis (N) different from said center line (M); a counterweigh (40) of mass mCE associated to a front part of the bin (10) and a counterweigh (42) of mass mCT associated to a front part of the drum (20), where the ratio [mCT/(mCE+mCT)]×100≧55, said mass mCT either a given magnitude centered with said center line (M) or a very lower magnitude and in the form of one or more fluid rings (60), the stresses the floating group sustains resulting substantially reduced, it being for it made in a light construction.

Abstract: A leak proof lid for a beverage container has a rocker arm which may be moved between open and closed positions by one hand. The lid is provided with drinking and venting apertures and respective basins within the lid. The rocker arm includes venting and drinking seals for sealing the respective aperture when the rocker arm is in the closed position. The rocker arm is easily removable from an upper side of the lid to facilitate cleaning the venting and drinking aperture and seals on the rocker arm.