Patent ID: 8556595

Claim:
A pump assembly for circulating water in a swamp cooler having a fan assembly associated with a shaft, the pump assembly comprising: a housing having a cavity; an impeller received in the cavity, the impeller being operatively connected to the shaft so as to transmit rotary motion of the shaft of the fan assembly to the impeller, and so as to secure an axis of rotation of the impeller in a coaxial relationship with an axis of rotation of the shaft of the fan assembly; and a rod operatively associated with the impeller; and a connecting member operatively associated with the rod, the connecting member structured to be operatively associated with the shaft of the fan assembly so as to transmit rotary motion of the shaft to the impeller, and the connecting member comprising a first slot adapted to threadably receive the rod, and a second slot adapted to receive the shaft of the fan assembly for allowing coupling of the connecting member to the shaft such that the connecting member rotates in conjunction with the shaft.