| 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 |
| 5263508 |
Sewer line water trap charging valve with improved adjustment for house line pressure changes |
November 23, 1993 |
| A device for charging sever line traps automatically upon decrease in main line water pressure comprising a branch line having a piston valve member telescopically received over the end of an adjustable tubular member, the piston having a first seat for sealing engagement with the end of |
| 5253670 |
Multiple drain trap primer valve assembly for sewer lines |
October 19, 1993 |
| A multiple drain trap primer valve assembly. The assembly comprises a plumbing conduit system including a house line 10 carrying water under pressure and a plurality of branch lines 12 each serving the drain trap 14 of a particular plumbing fixture. A manifold 26 having multiple discharg |
| 4926897 |
Automatic fluid pressure equalizing valve |
May 22, 1990 |
| A valve for proportioning hot and cold water flow in response to the pressure balance between the hot and cold water supply lines includes a piston which adjusts position in response to variation in the pressure ratio of the hot and cold water supplied to the valve, thereby maintaining |
| 4712574 |
Vacuum-breaking valve for pressurized fluid lines |
December 15, 1987 |
| For use in pressurized fluid lines, an anti-siphon and back-flow prevention valve. A conduit is tapped into the line upstream of an outlet terminating in a ball-shaped housing. The housing receives check valve means arranged for insuring that fluid does not escape during normal operation |
