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| Number | Title | Issue Date |
| 7571741 | Flow trap with compartment separator and baffle for use in a waterless urinal In a urine cartridge, equalized pressures and increased flow rate between its inlet and outlet compartments increases the life of the cartridge. The pressure equalizing is effected by placement of a separator between the two compartments to provide them with substan... | 08/11/2009 |
| 7066195 | Two-way trap This invention prevents blockage that occurs in the general drainage traps of buildings. The invention consists in connecting a conduit by positioning it in the inlet part above the trap water float level (M) and in the outlet part below a line (N) thereby forming a... | 06/27/2006 |
| 5404597 | Vacuum assist toilet trap A vacuum assisted toilet wherein a vacuum is applied between upper and lower traps (40,44 in FIG. 2) of a toilet bowl outlet during a flushing, wherein the lower trap is constructed to more reliably assure that an air passage (64) above a pool of water (5... | 04/11/1995 |
| 4706700 | Valve arrangement A valve arrangement for controlling the flow of a sample of blood gases along a capillaric streamway from a probe towards an analyzing apparatus includes a body 12 having an inlet 36 for control fluid and a reciprocable valve head 20 movable from a first ... | 11/17/1987 |
| 4254512 | Water trap A water trap for use in sinks and other drains, wherein two members which together form a water seal are adjustably and releasably secured together by a threaded connection. Means may be provided for handling water from two separate sources, wherein the t... | 03/10/1981 |
