Patent ID: 9587643
Date: 2017-03-07
CPC Classifications: F04D

Claim:
1. A drive shaft for use within a water pump, the water pump having a circulating impeller driven by an accessory drive to force water to flow into an engine, the drive shaft comprising: an elongate waist portion; a first end portion at one end of said elongate waist portion, said first end portion adapted to be coupled to the impeller of the water pump; a second end portion at the opposite end of said elongate waist portion, said second end portion disposed concentric to said first end portion, said second end portion including a flange rim, said flange rim stepped up from the surface of said second end portion, said second end portion disposed concentric to said flange rim at one side of said flange rim, said flange rim further including an extension tang, said extension tang projecting outward from said flange rim at an opposite side of said one side of said flange rim, wherein said outwardly projecting extension tang bisects said opposite side of said one side of said flange rim, said opposite side of said one side of said flange rim further including a first side surface and a second side surface, said first and second side surfaces normal to said extension tang, said extension tang adapted to be coupled to said accessory drive for circulating the impeller, and said first and second end portions being fixedly attached.