Patent ID: 6745542
Filing Date: 2004-06-08
Classification: B67B

Abstract:
A screw capper having conveying means including a plurality of support members, each capable of supporting a lower surface of a flange formed around a mouth of a vessel, thus conveying the vessel as suspended by the support member, a capping head for engaging a cap and tightening the cap around the vessel as the vessel is conveyed while being suspended by the conveying means, and an engaging projection formed on an upper surface of the support member and engagable with the lower surface of the flange, the arrangement being such that when the capping head tightens the cap, the capping head depresses the vessel through the cap to cause the lower surface of the flange to be engaged with the engaging projection to prevent the vessel from rotating;further comprising a receptacle member on which the vessel can be placed; and elevating means for elevating the support member, the elevating means causing the support member to descend upon completion of tightening the cap to place the vessel on the receptacle member and to disengage the engaging projection from the lower surface of the flange.