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| Number | Title | Issue Date |
| 7128083 | Wet barrel fire hydrant flow preventer The present invention provides a fluid flow prevention apparatus for a wet barrel fire hydrant which is simple and inexpensive to install and effectively cuts off water flow while reducing water hammer. The fluid flow apparatus includes an in-line valve member for c... | 10/31/2006 |
| 7059337 | Fluid hydrant A hydrant comprising a housing forming a reservoir; and a piston configured to force residual fluid out of the reservoir to an outlet and to allow supply fluid to flow from an inlet through the piston to the outlet when the piston is actuated in the housing to a fir... | 06/13/2006 |
| 6966332 | Air valve assembly for a fire hydrant An air valve assembly for a fire hydrant includes a pressure responsive valve means removably mounted at or near a top of a fire hydrant and more specifically to a fire hydrant bearing housing. The pressure responsive valve means is adapted to open when the fire hyd... | 11/22/2005 |
| 6653245 | Method for liquid phase deposition A method for liquid phase deposition, including the steps of providing at least two raw materials from at least two supply devices of a saturation reaction system into a mixture trough and stirring until saturation occurs, filtering out unnecessary solid-... | 11/25/2003 |
| 6003780 | Freezeproof valve assembly for a drinking fountain An improved freezeproof or freeze resistant valve assembly is provided for use in an outdoor drinking fountain or the like. The fountain includes a main on-off valve for coupling an underground water supply conduit via a standpipe to a fountain head to di... | 12/21/1999 |
| 5934370 | Well water flow diverter apparatus For combination with a tubular casing, the casing having a bore and a side wall through port, the improvement comprises, in combination, an assembly to be lowered in the casing to establish water flow upwardly in the casing, and then out the side port, th... | 08/10/1999 |
| 5701925 | Sanitary yard hydrant A yard hydrant of the venturi check valve-fluid reservoir type has a manually operable flow diverter valve which will provide full fluid flow through the hydrant to effectively siphon residual fluid from the reservoir without removal of hoses, backflow pr... | 12/30/1997 |
| 5246028 | Sanitary yard hydrant A freeze and contamination resistant hydrant, for controlling fluid flow includes: a vertically elongated conduit having a lower portion adapted for installation underground, the conduit having a lower fluid inlet associated with that lower portion, and a... | 09/21/1993 |
| 5033500 | Freeze valve apparatus A freeze resisting valve apparatus, for controlling water flow, the combination comprising: a vertically elongated, hollow valve body having a lower portion adapted for installation underground, the body having a lower water inlet associated with the lowe... | 07/23/1991 |
| 4854339 | Freeze valve apparatus Freeze resisting valve apparatus, for controlling water flow, includes: a vertically elongated, hollow valve body having a lower portion adapted for installation underground, the body having a lower water inlet associated with that lower portion, and an u... | 08/08/1989 |
| 4520836 | Freezeproof valve assembly An improved freezeproof valve assembly is provided for a water hydrant, such as an outdoor drinking fountain or the like. The valve assembly comprises a sump housing for installation below the ground frost line and for connection between a water supply pi... | 06/04/1985 |
| 4282895 | Freeze-proof, pollution free valve A valve is located below the frost line in the water supply line for a drinking fountain or the like. When the valve is opened, a piston is raised by the water pressure, compressing a spring. When the valve is closed, the spring retracts the piston, sucki... | 08/11/1981 |
| 4112966 | Ejector purge hydrant A hydrant for controlling the flow of water from an underground supply includes a casing connected at its lower end to the supply and its upper end to a nozzle for delivery of water from the casing. The flow of water from the supply to the casing is contr... | 09/12/1978 |
| 4109671 | Sanitary yard hydrant A nonfreezing, nonpolluting hydrant construction. The hydrant includes an above-ground discharge head, a main valve body disposed below frost line, and a stand pipe interconnecting the two. A flow tube is mounted inside the stand pipe. The upper end of th... | 08/29/1978 |
| 4096877 | Freezeproof sanitary water supply appliance A water supply control appliance adapted to be buried in soil beneath local frost level contains a chamber fitted with a piston which is spring-biased in opposition to inlet water pressure. Such pressure forces the piston to fully charged position at one ... | 06/27/1978 |
