Abstract: A ceiling fan hanging system (10) in disclosed for use with a conventional ceiling fan (11). The hanging system includes a downrod (15) and a downrod receiver (16). The downrod has a lower end (20) having a select outside diameter and a pair of mutually aligned holes (21) therethrough. The downrod receiver has a tubular neck portion (22) having an internal channel (23) with an internal diameter configured to receive the lower end of the downrod. The neck portion has an oblong first mounting hole (24) and a generally round second mounting hole (25). The downrod receiver also includes a mounting bolt (26) and a mounting nut (27) configured to be threadably received upon mounting bolt. Mounting bolt has an oblong head (29) configured to be nestably received within oblong first mounting hole and a shank (31) extending from head. The oblong head includes an inboard or inwardly facing surface (32) which is curved to conform with and fit snugly against the exterior of the downrod.

Abstract: A ceiling fan is disclosed having an electric motor (13) with a bottom mounting plate (14) to which an annular array of blade irons (16) are coupled, each having a blade (17) mounted thereto. Each blade iron has a motor mounting flange (21) with a recess (23), an end tongue section (26), and an end groove section (27) configured to receive the end tongue section. The end groove section includes an alignment pin (28) and a threaded mounting hole (29). The end tongue section includes an alignment hole (30) configured to receive the groove section alignment pin, and a countersunk hole (31) which is aligned with a mounting hole in the blade iron groove section. A threaded mounting screw (32) is passed through countersunk hole (31) and into mounting hole (29). Each mounting flange is coupled to its two adjacent mounting flanges to provide limited movement therebetween.

Abstract: A ceiling fan hanging system (10) in disclosed for use with a conventional ceiling fan (11). The hanging system includes a downrod (15) and a downrod receiver (16). The downrod has a lower end (20) having a select outside diameter and a pair of mutually aligned holes (21) therethrough. The downrod receiver has a tubular neck portion (22) having an internal channel (23) with an internal diameter configured to receive the lower end of the downrod. The neck portion has an oblong first mounting hole (24) and a generally round second mounting hole (25). The downrod receiver also includes a mounting bolt (26) and a mounting nut (27) configured to be threadably received upon mounting bolt. Mounting bolt has an oblong head (29) configured to be nestably received within oblong first mounting hole and a shank (31) extending from head. The oblong head includes an inboard or inwardly facing surface (32) which is curved to conform with and fit snugly against the exterior of the downrod.