| 摘要 |
A coupling device for coupling a waste disposer unit to a sink, including a drain conduit with a flange for fitting against the sink and a collar having external threads positioned over the conduit. A locking ring is in threaded engagement with the collar for retaining the drain conduit securely to the sink. A resilient sealing ring is positioned over the bottom of the conduit and the top of the disposer and securing means is placed over the sealing ring to hold the assembly together.
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