Patent ID: 7516911

Claim:
An adjustable knife-curtain outlet structure, adapted to be connected to a cleanout handle, comprising: a) a lockup phase having: i) a first end adapted to be connected to an outlet of the cleanout handle; iii) a smaller threaded portion located on a second end thereof; and iv) a larger threaded portion located between the first end and the smaller threaded portion; b) a water spray joint threadedly connected to the smaller threaded portion of the lockup phase; and c) a bushing threadedly connected to the larger threaded portion of the lockup phase, wherein the adjustable knife-curtain outlet structure further comprises a smaller O-ring sealing a connection between the lockup phase and the water spray joint, the lockup phase having a smaller threaded portion groove located adjacent to the smaller threaded portion, and the smaller O-ring is located in the smaller threaded portion groove.