US 5,702,020 A · Drinking mug

Abstract

A drinking mug for small children, handicapped and hospital patients, comprising a cup, a lid and a suction tube, is configured in an airtight manner so that only access to the inside of the mug is through the suction tube. Tightness is achieved by disposing the suction tube on the inside of the lid on a drinking spout and by providing a sealing ring in the joint between the lid and the cup. Due to the airtight construction, when liquid is sucked up an under pressure is created inside the mug which subsequently empties the suction tube of liquid. Correspondingly, an attempt by the liquid to run out through the suction tube when the mug is tipped over is counteracted by the siphon effect which results from the airtight construction.

Claims10

Dependent claims

Drinking mug comprising a cup defining an opening for filling with liquid, a lid with means for removably connecting said lid to said cup to cover said opening in a gastight fashion, said lid having no air vent therethrough;

and at least one continuous suction tube which extends from a mouth at a top side of the mug to an inlet end inside the mug disposed at a relatively short distance over a bottom of the mug, such that when a non-carbonated liquid is sucked from the interior of the mug through the suction tube, a partial vacuum will be created therein above the liquid to prevent further liquid spillage when the suction is discontinued, flow of air into the mug taking place exclusively through the suction tube.

Dependencies are inferred from the claim text.

Drinking mug

Life of this patent

Drinking mug

Life of this patent

Abstract

Claims10