Patent ID: 7775010

Claim:
A plurality of slab bolster elements, each comprising: a bolster frame member having a male connector disposed on a first end and a female connector disposed on an opposite end; said male connector including first and second outer prongs for engaging a complementary female connector and said female connector including first and second opposing side walls with first and second transverse slats extending between said side walls so as to form a socket for receiving a complementary male connector; said male connector further including a flexible prong extending inwardly between said outer prongs, the flexible prong including a free inward end and a wedge element configured to, in use, resiliently contact and lockingly engage the first transverse slat of another of said plurality of slab bolster elements, wherein said free inward end projects beyond said wedge element and is configured to blockingly abut the second transverse slat of said another bolster element to prevent withdrawal of said male connector from the female connector of said another bolster element if said flexible prong is depressed excessively; wherein said male connector may lockingly engage the female connector of said another bolster element when inserted into said female connector of said second another bolster element.