Nestable cup

Claim 1

A THIN-WALL PLASTIC CUP OF INTEGRAL ONE-PIECE CONSTRUCTION AND OF A SIZE ADAPTED TO BE GRASPED AND LIFTED READILY IN ONE HAND, COMPRISING A BOTTOM, AND A SIDEWALL TAPERING UPWARDLY AND OUTWARDLY THEREFROM TO AN OPEN UPPER END WITH A ROLLED OVER RIM, SAID SIDEWALL BEING SUBSTANTIALLY SYMMETRICAL ABOUT THE LONGITUDINAL AXIS OF SAID CUP AND INTEGRALLY JOINED TO SAID BOTTOM AT A BOTTOM EDGE AND HAVING A OP EDGE, SAID CUP BEING PROVIDED WITH A CIRCUMFERENTIALLY EXTENDING ABUTMENT SURFACE AT ONE OF ITS EDGES, AND A SERIES OF INTEGRAL PROTUBERANCES ARRANGED IN CIRCUMFERENTIAL ARRAY IN THE VICINITY OF SAID ABUTMENT SURFACE, EACH OF SAID PROTUBERANCES BEING IN THE FORM OF A PAIR OF CONVERGING, OPPOSITELY DISDPOSED, AND CIRCUMFERENTIALLY SPACED THIN WALL SECTIONS FORMED FROM THE CUP SIDEWEALL, EACH OF SAID WALL SECTIONS BEING ANGULARLY DISPOSED IN RESPECT TO THE CUP SIDEWALL AND WITH THE CIRCUMFERENTIAL EXTERMITIES OF EACH OF SAID THIN WALL SECTIONS BEING JOINED BY END WALL SECTIONS FORMED FROM THE CUP SIDEWALL, THE CONVERGENCE OF SAID SECTIONS PRESENTING A VSHAPED CONFIGURATION TERMINATING IN A RELATIVELY DISCRETE APEX PROJECTING RADIALLY FROM SAID SIDEWALL AND ALL OF SAID APICES BEING LOCATED IN CIRCUMFERENTIAL ARRAY SUBSTANTIALLY WITHIN A COMMON PLANE PERPENDICULAR TO THE LONGITUDINAL AXIS OF THE CUP, THE UPPER AND LOWER BOUNDING SURFACES OF SAID PROTUBERANCES DIVERGING FROM SAID COMMON PLANE, THE SAID ABUTMENT SURFACE OF THE CUP AND SAID DIVERGING PROTUBERANCES SURFACES OF THE CUP BEING RADIALLY OVERLAPPING WHEREBY THE ABUTMENT SURFACE OF ONE CUP CAMMINGLY ENGAGES THE ADJACENT BOUNDING SURFACE OF EACH PROTUBERANCE OF A LIKE ADJACENT CUP TELESCOPED THEREWITH, THE CAMMING ENGAGEMENT AND THE INHERENT RESELIENCY OF THE CUP MATERIAL PROVIDING A RESILIENT RESISTANCE TO PREVENT JAMMING TOGETHER OF TELESCOPED CUPS AND PROVIDING AXIAL RESILIENCE TO A STACK OF TELESCOPED CUPS.