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In a keg tapping system, a keg unit in each keg has coaxial gas and liquid valves, and a tavern unit, detachably connectable to the keg unit, has a lever actuated plunger that is depressed to open the valves in the keg unit and to open a gas valve in the tavern unit. The keg unit has a well in its t

In a keg tapping system, a keg unit in each keg has coaxial gas and liquid valves, and a tavern unit, detachably connectable to the keg unit, has a lever actuated plunger that is depressed to open the valves in the keg unit and to open a gas valve in the tavern unit. The keg unit has a well in its top in which the tavern unit is rotatably received and diametrically opposite lugs projecting into that well to cooperate with a flange on the tavern unit body in providing a bayonet connection between the units. Affixed to the lever on the tavern unit is an abutment carrier having abutment portions cooperable with said lugs. If the bayonet connection is not fully engaged, one abutment portion engages an upper surface on one of the lugs to prevent the lever from being swung down to its valve-open position; with the lever down, an abutment portion engages a lug to prevent rotation of the tavern unit to a position at which the bayonet connection is disengaged.

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A tavern unit for a keg tapping system, to which a pressure gas duct and a beverage duct are normally connected and which is detachably connectable to a keg unit that is installed in a keg and has an upwardly opening well into which opposite lugs project radially, said tavern unit having a body with

A tavern unit for a keg tapping system, to which a pressure gas duct and a beverage duct are normally connected and which is detachably connectable to a keg unit that is installed in a keg and has an upwardly opening well into which opposite lugs project radially, said tavern unit having a body with a base portion which is rotatably receivable in said well and which cooperates with said lugs to provide a bayonet connection between said units, said tavern unit also having a lever projecting substantially radially from its body, above said base portion, whereby the tavern unit can be bodily rotated for engagement and disengagement of said bayonet connection, said lever also comprising a valve actuator that is swingable relative to the body downward to a valve open position providing for communication between the interior of said keg and said ducts and upward to a valve closed position that permits separation of the units without loss of gas or beverage, said tavern unit being characterized by: abutment means rigidly fixed to said lever for up and down motion therewith and projecting downwardly from said lever, towards said base portion, said abutment means being arranged for cooperation with one of said lugs on a keg unit and having (1) a downwardly facing abutment at its bottom which is engageable with a top surface on one of said lugs when said bayonet connection is not fully engaged, to prevent the lever from swinging down to its valve open position, and (2) a circumferentially facing abutment which is engageable with an opposing circumferentially facing surface on one of said lugs when said lever is in its lowered valve open position and which thus cooperates with said lug to then prevent rotation of the tavern unit to a position in which said bayonet connection is disengaged.