UNIT FOR FASTENING WASHING-OFF TANK TO LAVATORY PAN Russian patent published in 1999 - IPC

FIELD: sanitary equipment. SUBSTANCE: this comprises body of washing-off tank with through-opening, lavatory pan with through-opening and inlet hole for lavatory pan pipe connection, sealing ring for installing between tank and pan, fastening bolts with gaskets, washers and nuts intended for using in holes of washing-off tank and lavatory pan. Reliable sealing of fastening unit at moderate tightening of fastening members is achieved due to fact that lateral cross-section of sealing ring is made in the form of rectangular trapezium. Large base of this trapezium is in contact with lavatory pan. Inclined side of trapezium creates hermetic space between washing-off tank and lavatory pan. EFFECT: higher efficiency. 1 cl, 2 dwg