14 u2032 is the push button 14 accommodating recess 16 u2032 is a plunger 16 accommodating recess 17 u2032 is a bottom plate 17 accommodating recess also on the upper region of the handle body is a rail 22 to slidably engage the pressure piece onto the handle body besides the rail the the pressure piece connection means comprises an open region 34 provided on the pressure piece the pressure piece also has a pressure piece head 32 to press an outer edge of the utensil lid the pressure piece coupling means comprises an open region 34 having an inner area and an outer area provided on the inner region of the pressure piece and the rail 22 having a neck region and a projecting platform the open region 34 of the pressure piece has a width greater in the inner area than in the outer area and the rail 22 has a width greater in the projecting platform than in the neck region the varying widths of the rail and the open region ensure that the pressure piece can slide along the rail and at the same time be secured to the rail preferably the open region of the pressure piece is deeper at the tail end of the pressure piece this deeper area is formed to accommodate a pressure a key that engages a pressure.