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Dowdican; Frank W.
Portland, OR
No. of patents:

Patent Number Title Of Patent Date Issued
5797419 Sewer line trap priming assembly and antisiphoning conduit component therefor August 25, 1998
An automatic sewer line trap priming assembly including a gap type, anti-siphoning conduit component. A shielded and directed jet at timed intervals directs priming water increments into a receiving funnel which communicates with the trap.
5678588 Sewer line multiple trap priming system and method October 21, 1997
A sewer line multiple trap priming system comprises a house line and a plurality of branch lines all communicating with each other and supplied with water under pressure. A plurality of makeup priming water lines are connected, one to each of the traps. In all but one of the branch lines

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