Coasters-vacuum cup

Claim 1

AN ATTACHABLE AND DETACHABLE COASTER COMPRISING A PLATELIKE BODY, PROJECTIONS UPON THE TOP AND THE BOTTOM OF SAID BODY OUTWARDLY OF THE CENTRAL PORTION AND INWARDLY OF THE PERIPHERY THEREOF, SAID BOTTOM PROJECTIONS FORMING THE SUPPORT OF SAID COASTER, MATERIAL ON THE TOP OF SAID BODY SURROUNDING SAID TOP PROJECTIONS AND EXTENDING TO THE PERIPHERAL PORTIONS OF SAID BODY, SAID MATERIAL HAVING HEIGHT APPROXIMATELY THE SAME AS SAID TOP PROJECTIONS, SAID TOP PROJECTIONS HAVING HEIGHT EXCEEDING SAID BOTTOM PROJECTIONS, AND DISPOSED RELATIVE THERETO FURTHER OUTWARD ON SAID BODY WHEREIN A PLURALITY OF SAID COASTERS STACKED ONE ON TOP OF ANOTHER ENGAGE ONE ANOTHER THAT SAID BOTTOM PROJECTIONS OF ONE COASTER INTERLOCK WITHIN SAID TOP PROJECTIONS OF AN ADJACENT COASTER PROVIDING THEREIN MEANS TO ALIGN AND TO NEST SAID COASTERS IN SAID STACKING, WHEREIN ADJACENT COASTERS ARE HELD THEREBY AGAINST SLIDING ONE OFF OF ANOTHER, SAID STACKING OCCURRING FURTHER THAT THE LOWERMOST BEARING SURFACE OF SAID BOTTOM PROJECTIONS ARE HELD IN SPACED RELATIONSHIP BETWEEN ADJACENT COASTERS PROVIDING THEREIN MEANS IN SAID STACKING TO EFFECTIVELY SEPARATE ADJACENT COASTERS AT THEIR SUPPORTING SURFACES; SAID PROJECTIONS UPON THE BOTTOM OF SAID COASTER HAVING A BOSS AT THE OUTER PERIPHERAL SIDE OF THE BASE THEREOF WHEREIN, IN SAID STACKING OF SAID COASTER, SAID BOSS ON ONE COASTER BEARS ON THE UPPER SURFACE OF SAID TOP PROJECTIONS OF AN ADJACENT COASTER THAT SAID MATERIAL ON TOP OF SAID COASTER IS HELD IN SPACED RELATION BETWEEN COASTERS ACCESSIBLE TO AIR OUTSIDE SAID COASTERR; A SUCTION CUP ON THE TOP OF SAID BODY SITUATED INWARDLY OF SAID TOP PROJECTIONS, A HOLE AXIALLY ORIENTED THROUGH SAID CUP, ONE END OF SAID HOLE OPEN FROM UNDERNEATH SAID COASTER BODY, SAID HOLE CONTAINING A SUCTION RELEASE VALVE, SAID VALVE HAVING A SEAT WITHIN THE INSIDE PORTION OF SAID SUCTION CUP, SAID VALVE COMPRISING A PIN THROUGH SAID HOLE, SAID PIN AT ONE END ENLARGED AND ADAPTED THEREIN TO SEAL SAID HOLE AT SAID VALVE SEAT, SPRING MEANS COOPERATIANG WITH SAID PIN AT THE END THEREOF OPPOSITE SAID ENLARGED END AND AT THE AREA IMMEDIATELY SURROUNDING THE OUTSIDE OF SAID HOLE AT SAID OPEN END UNDERNEATH SAID COASTER BODY TO PRODUCE A RESILIENT FORCE UPON SAID PIN IN THE AXIAL DIRECTION THEREOF WHEREIN SAID FORCE URGES SAID ENLARGED END OF SAID PIN TIGHTLY AGAINST SAID VALVE SEAT CLOSING THEREBY SAID HOLE FROM PASSAGE OF AIR, SAID VALVE FURTHER BEING ACCESSIBLY DISPOSED AND OPERABLE FROM THE UNDERSIDE OF SAID COASTER BODY, RESILIENT MEANS TO STABILZE THE ATTACHMENT OF SAID COASTER TO A TUMBLER WHEREIN IN SAID ATTACHMENT SAID MEANS COMPENSATES FOR INHERENT RESILIENT SPRINGBACK OF SAID SUCTION CUP OCASSIONED BY SAID ATTACHMENT.