Abstract: A tank for receiving a drink to be dispensed, the tank is rectangular in shape and opens upwardly, a discharge valve is located at the lower, front end of the tank, and a cover fits over the open end of the tank. Detents are formed at the upper end of the walls of the tank. A manually operable locking mechanism secures the cover in fixed position atop the tank. The locking mechanism comprises a vertical shaft or axle that extends through the central part of the cover. A knob is secured to the upper end of the shaft, and a cam is secured to the lower end of the shaft. A plurality of elongated rods pass through diametrically opposed slots in a housing secured to the underside, or interior, of the cover. One end of each rod has a contact surface which is urged against the perimeter of the cam, while the opposite end of the is a locking surface. When the knob is rotated in one direction, the locking surfaces of the rods are forced into the detents to lock the cover in fixed position.

Abstract: A tank for receiving a drink to be dispensed, the tank is rectangular in shape and opens upwardly, a discharge valve is located at the lower, front end of the tank, and a cover fits over the open end of the tank. Detents are formed at the upper end of the walls of the tank. A manually operable locking mechanism secures the cover in fixed position atop the tank. The locking mechanism comprises a vertical shaft or axle that extends through the central part of the cover. A knob is secured to the upper end of the shaft, and a cam is secured to the lower end of the shaft. A plurality of elongated rods pass through diametrically opposed slots in a housing secured to the underside, or interior, of the cover. One end of each rod has a contact surface which is urged against the perimeter of the cam, while the opposite end of the is a locking surface. When the knob is rotated in one direction, the locking surfaces of the rods are forced into the detents to lock the cover in fixed position.

Abstract: A highly hygienic machine for producing and dispensing still and carbonated crushed-ice or slush-type products comprises a base for accommodating conventional operating elements above which at least one tank for containing the slush-type products ready for consumption is installed; the tank is provided with a dispenser tap, is hermetic and can be hermetically connected to pressurization means and to pre-cooling elements for volumes of still or carbonated beverages.