Patent ID: 9011255
Filing Date: 2015-04-21
Classification: B08B,F16C,F16L,F28G,Y10S

Abstract:
1. A coupling for a tube cleaning machine having a drive motor for rotating a tube cleaning shaft, the coupling comprising: a tube cleaning shaft, cleaning fluid, a sheath encasing the shaft and defining a channel for flow of the cleaning fluid, an inner duct attached to the machine, the duct having an interior passage, the tube cleaning shaft and cleaning fluid passing through the duct, a latch collar through which the inner duct passes, the latch collar having at least one latch arm mounted for movement in an opening in the latch collar, a latch bar integral with the latch arm, the latch arm is pivotally mounted, on an offset pivot pin, in the latch collar opening for radial movement between open and closed positions, and the latch being spring biased to a closed position, a shaft collar for connecting the tube cleaning shaft to the tube cleaning machine through the latch collar, the shaft collar having means for moving the latch arm when connecting to the latch collar, the shaft collar having means for receiving the latch arm to hold latch collar and shaft collar to each other, the sheath attached to the shaft collar, the shaft collar having an interior passage for receiving the tube cleaning shaft and cleaning fluid from the inner duct passage and for directing the shaft and the fluid into the sheath channel, and means for establishing a fluid tight seal between the shaft collar and the inner duct.