Overhead ceiling structure with an integral fixture assembly

Claim 1

IN A SUSPENDED CEILING CONTRUCTION HAVING TRANSVERSE AND LONGITUDINAL RAIL MEMBES, CEILING MATERIALS SUPPORTED BETWEEN THE RAIL MEMBERS, AND AT LEAST ONE PAIR OF OPPOSING, OPEN RAIL MEMBERS, A FIXTURE SUPPORT ASSEMBLY COMPRISING: AT LEAST ONE ELONGATED FIXTURE HOUSING MOUNTED IN UPWARDLY COVED RELATION BETWEEN SAID ONE PAIR OF OPEN RAIL MEMBERS IN SAID FIXTURE SUPPORT ASSEMBLY; FIXTURE MEANS ASSOCIATED WITH SAID HOUSING; A PLURALITY OF YOKE ASSEMBLIES, EACH INCLUDING UPWARDLY INCLINED SIDE MEMBERS AND APEX MEANS, THE SIDE MEMBERS EACH HAVING AN UPPER END AND A LOWER END; THE APEX MEANS INCLUDING TRANSVERSELY ARRANGED APEX ELEMENTS WHICH CORRELATE THE RESPECTIVE SIDE MEMBER UPPER ENDS IN A MANNER SUCH THAT THE FIXTURE HOUSING IS ENGAGED AND SUPPORTED THEREBY; EACH FIXTURE HOUSING BEING MOUNTED BETWEEN THE UPPER ENDS OF THE SIDE MEMBERS; MEANS CONNECTING THE LOWER ENDS OF THE SIDE MEMBERS TO THE RAIL MEMBERS OF SAID ONE PAIR AT SPACED LOCATIONS; ENGAGEMENT MEANS ASSOCIATED WITH THE SIDE MEMBERS FOR RETAINING BLOCKS OF CEILING MATERIAL; BLOCKS OF CEILING MATERIAL BETWEEN THE SIDE MEMBERS ENGAGED BY SAID ENGAGEMENT MEANS; THE BLOCKS BEING UPWARDLY AND INWARDLY INCLINED FROM THE CEILING; AND THE BLOCKS BEING INCLINED TO THE FIXTURE HOUSING TO SPAN THE DISTANCE BETWEEN SAID ONE PAIR OF OPEN RAIL MEMBERS AND TO LOCATE THE FIXTURE HOUSING IN SAID UPWARDLY COVED RELATION TO THE ONE PAIR OF RAIL MEMBERS.