Plastic drawer construction

Claim 1

A MOLDED SYNTHETIC RESIN CABINET DRAWER INCLUDING A BOTTOM WALL, FRONT AND BACK WALLS, OUTWARDLY AND UPWARDLY INCLINED SIDE WALLS, AND AN OPEN TOP, SAID WALLS ALL BEING INTEGRAL WITH EACH OTHER AND AT LEAST SAID SIDE WALLS HAVING SUBSTANTIALLY PARALLEL INNER AND OUTER VERTICALLY INCLINED FACES, SAID SIDE WALLS BEING RESILIENTLY FLEXIBLE IN THE UPPER MAJOR PORTIONS THEREOF, A PLURALITY OF LONGITUDINALLY SPACED UPRIGHT DOVETAIL GROOVES DISPOSED WHOLLY WITHIN EACH OF SAID INCLINED SIDE WALLS BETWEEN SAID INNER AND OUTER PARALLEL FACES THEREOF AND OPEN TO THE INNER SURFACE THEREOF, SAID GROOVES BEING PARALLEL TO SAID INNER AND OUTER FACES AND FORMING PAIRS OF GROOVES IN TRANSVERSE ALIGNMENT WITH EACH OTHER, SAID INCLINED SIDE WALL GROOVES BEING OPEN AT AND COINCIDENT WITH SAID OPEN TOP AT THEIR UPPER ENDS AND PROGRESSIVELY AND UNIFORMLY TAPERING TO A REDUCED WIDTH AT THEIR LOWER ENDS, A REMOVABLE PARTITION MEMBER FORMING COMPARTMENTS WITHIN SAID DRAWER, SAID PARTITION MEMBER COMPRISING A FLAT SHEET-LIKE MEMBER FOR THE MAJOR PORTION THEREOF, SAID PARTITION MEMBER HAVING DOWNWARDLY AND INWARDLY INCLINED TAPERED DOVETAIL END PORTIONS THEREON COMPLEMENTARY TO SAID UPWARDLY TAPERING DOVETAIL GROOVES OF SAID INCLINED SIDE WALLS FOR ENGAGEMENT THEREIN, SAID END PORTIONS OF SAID PARTITION MEMBER BEING SELECTIVELY INSERTABLE INTO ANY PAIR OF SAID TRANSVERSELY ALIGNED SIDE WALL GROOVES, SAID UPWARDLY AND OUTWARDLY INCLINED TAPERED SIDE WALL GROOVES AND SAID CORRESPONDINGLY DOWNWARDLY AND INWARDLY INCLINED AND TAPERED DOVETAILED END PORTIONS OF SAID PARTITION MEMBER FORMING INCLINED JOINTS THEREBETWEEN TO PROVIDE UPWARDLY PROGRESSIVELY WIDENED AND ENLARGED INTER-ENGAGED BEARING SURFACE AREAS WHEREBY SAID JOITS ARE PROGRESSIVELY AND INCREASINGLY UPWARDLY REINFORCED TO MINIMIZED DISTORTION AND TO PREVENT DISPLACEMENT OF SAID SIDE WALLS AND SAID PARTITION MEMBERS RELATIVE TO EACH OTHER AS SAID COMPARTMENTS ARE SELECTIVELY FILLED WITH RELATIVELY HEAVY OBJECTS, SAID INCLINED JOINTS MAINTAINING SAID PARTITION MEMBER LOCKED IN ITS LOWERMOST POSITION IN THE CABINET DRAWER.