Abstract: A clamp for resealing an opened milk carton includes a U-shaped clamp arm having parallel legs, with high friction surfaces on their inner faces, configured for fitting over and enclosing the top flap of the carton. A squeezing arm extends from joinder with the extremity of one of the legs back around the other leg and terminates in a boss which is located longitudinally intermediate the ends of the clamp arm. Journaled in the boss is a lever which is configured for squeezing the legs of the clamp arm together upon rotation of a handle associated with the lever. A lock positioned on the handle engages the clamp arm to secure the clamp in its closed position thereby preventing inadvertent dislodgement or opening of the clamp.

Abstract: a clamp for resealing an opened milk carton or similar container includes adjacent clamping legs interconnected by a resilient medial portion and movable relative to each other from a diverging position when the clamp is open to a substantially parallel relationship when the clamp is closed. A lever arm connected to one of the clamping legs overlaps the extremity of the other clamping leg to limit the distance by which the extremities of the clamping legs may be separated, and an elastically movable latch, located intermediate the free extremity of the lever arm and the end of the clamping leg to which the lever arm is attached, engages the extremity of the other clamping leg to retain the sealing clamp in its closed position. The clamp may be made from a single strip of sheet metal appropriately bent, or from other material having suitable elasticity and durability.