| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 137272000 | HYDRANT TYPE | 38 |
| 20120031507 | ELEVATING FIRE HYDRANT ASSEMBLY - The present invention relates to an elevating fire hydrant assembly in which an elevating pipe automatically projects from the ground by means of water pressure when a fire hydrant is to be used, and the speed for lowering the elevating pipe projecting from the ground after use is adjustable. The elevating fire hydrant assembly comprises: a water pipe ( | 02-09-2012 |
| 137281000 | Expansible chamber operated by valve actuator for draining riser | 2 |
| 20110186145 | YARD HYDRANT MADE EASY - A Yard Hydrant Made Easy has a riser with a slip connection, called a pitless adapter, attached directly to the side of the riser, below freeze level. The water supply is connected to the outside section of the pitless adapter and a yard hydrant is attached to the inside removable section of the pitless adapter. This hollow riser and slip connection allows for easy removal and replacement of a yard hydrant, without the need of any future excavation, busting of concrete, or tearing up of landscaped areas. A seepage section may be incorporated at the base of the riser to allow a yard hydrant to drain out without ever coming in contact with soil. This prevents any chance of the drain hole, at the base of the yard hydrant, becoming stopped up and causing the hydrant to freeze. A dual check valve backflow preventer may be installed at the base of the hydrant. An underground shut-off valve may be connected to the outside section of the pitless adapter to allow the individual hydrant to be isolated without interrupting water supply to an entire property. | 08-04-2011 |
| 20150129052 | Freeze Proof Sanitary Yard Hydrant - A yard hydrant, including a discharge nozzle above ground level, connects to other vertically reciprocal working parts in the ground below the frost line. A water storage chamber, disposed below the frost line, is formed in part by a deformable diaphragm. Residual water in the hydrant, when the hydrant is turned off, is collected in the water storage chamber and returned to the hydrant for discharge through the nozzle when the hydrant is turned on. A venturi disposed in the water supply line creates turbulence and thereby creates a lower pressure adjacent the exit of the venturi when the hydrant is turned on. This lowered pressure at the venturi exit speeds up the evacuation of water from the water storage chamber when the hydrant is on so the storage chamber can accept and store water that would otherwise be above the frost line when the hydrant is turned off. | 05-14-2015 |
| 137282000 | With pump or ejector | 1 |
| 20160017577 | DEVICE AND METHOD FOR PROTECTING WATER-BASED EQUIPMENT - The present invention provides a device and a method for protecting water-based equipment which are capable of automatically preventing water-based equipment from breaking down or malfunctioning due to various reasons such as the freezing and bursting of a pipe, the start failure of a pump or an internal combustion engine, or the damage caused by a temperature increase inside the pump, even without performing periodic checks or having a manager with special knowledge or skills, or the like. Moreover, the present invention provides a device and a method for protecting water-based equipment being capable of protecting water-based equipment, in which the device is configured to be capable of preventing the pipe from freezing and bursting using the kinetic energy caused by the circulation of water in the pipe, and further configured to lead hot water made in a boiler into the suction side of the pump, so that a valve seat is opened, and water is circulated when the temperature of the pipe end becomes lower than a predetermined temperature, and when the temperature of the pipe is maintained over a predetermined temperature range, the valve seat is blocked, thereby performing thermal insulation of the pipe. | 01-21-2016 |
| 137285000 | Removable valve with supplemental check valve | 1 |
| 20100132806 | FIRE HYDRANT CHECK VALVE - A check valve for a fire hydrant system is configured to allow fluid to flow in a direction from a pressurized water supply to a fire hydrant and to restrict fluid from flowing from the fire hydrant to the pressurized water supply. The check valve includes an internal cavity and a flapper capable of moving between an open position wherein the flapper is positioned against a side of the internal cavity so as to substantially not impede flow of fluid therethrough and a closed position wherein the flapper creates a seal to restrict flow of fluid therethrough. | 06-03-2010 |
| 137286000 | Movable riser actuated valve | 1 |
| 137287000 | Reciprocating riser | 1 |
| 20160101307 | FIRE HYDRANT SECURITY INTEGRATED FLOW CONTROL/BACKFLOW PREVENTER INSERT VALVE - Integrated flow control backflow preventer valve (“IFCBPV”) for new and existing wet- and dry-barrel fire hydrants, with barrel drain assemblies for dry-barrel hydrants, and hydrants equipped with such IFCBPVs, are presented. An exemplary IFCBPV can have a retaining screen comprising equidistant concave radial spokes intersecting at a central ring structure, a freely suspended check ball, and a lower ball seat with a seal. The upper surface of the retaining screen can be affixed to the hydrant's axial shaft, and can thus be used to open and close the hydrant via the ball. Alternatively, the retaining screen can be fixed and the axial shaft provided with a cup on its bottom that mates with the freely suspended ball that is caged between the retaining screen and the ball seat. An exemplary barrel drain assembly can comprise a spring-loaded piston, or alternatively, a check ball design as in the main barrel. | 04-14-2016 |
| 137291000 | Valve actuator outside riser | 1 |
| 20160018019 | Adjustable Operating Rod For A Hydrant - An adjustable operating rod assembly is provided. In one embodiment a telescoping rod and tube are provided such that the length of the operating rod can be selectively adjusted in order to accommodate fluid inlet pipes of various lengths and regardless of manufacturer. | 01-21-2016 |
| 137294000 | With casing | 17 |
| 20090320933 | Weeping System for Fire Hydrant Having a Protective Valve or Device - Embodiments of the present invention provide improved weeping systems adapted for use with fire hydrants having protection systems. The weeping systems provide one or more check valves adapted to assist air to exit through a weeping hole of the hydrant. | 12-31-2009 |
| 20100065132 | AVIATION FUELING HYDRANT COUPLER WITH INTERNAL ACTUATING COLLAR LOCK - A hydrant coupling assembly includes a hydrant valve and a hydrant coupler, including a coupler body and a coupler actuating collar assembly having an actuating collar movable axially relative to the coupler body. The actuating collar includes at least one movable latching lug that is selectively moved into place around a mating feature on the hydrant valve adapter by lifting or lowering the actuating collar. A locking mechanism is installed within the coupler actuating collar and includes a coupler plunger, a collar plunger, a coupler plunger check ball, and a collar plunger cheek ball. The coupler plunger and the coupler plunger check ball are adapted to lock the actuating collar in a disconnected state and the collar plunger and the collar plunger check ball are adapted to lock the actuating collar in a connected state. A hydrant coupler for use in a hydrant coupling assembly is also disclosed. | 03-18-2010 |
| 20100307609 | Fire Hydrant Anti-Tamper System - The present invention is directed toward an anti-tamper system for fire hydrants that prevents intentional introduction of contaminates into the water system as well as prevents unauthorized removal of water from the water system while still providing easy access to pressurized water by authorized personnel. The system is constructed and arranged to prevent the rotation of the valve stem and/or the nozzle cap(s) by unauthorized users. The system replaces or modifies the valve stem to include at least one aperture therethrough. A replacement nozzle cap is also provided. The nozzle cap includes a centrally located locking bar that cooperates with both the valve stem and the nozzle cap to prevent rotation thereof by unauthorized persons. A release tool is provided to remove or retract the locking bar from the valve stem, to allow valve operation, while simultaneously allowing rotation of the nozzle cap to allow removal thereof from the outlet port. Relocking merely requires the valve stem to be rotated to close the valve. Thereafter, the nozzle cap is replaced over the outlet port and the locking bar is moved into engagement with the stem and the nozzle cap to lock both in their respective positions until the locking bar is removed or retracted with the release tool. | 12-09-2010 |
| 20120192960 | FIRE HYDRANT BOX - A fire hydrant box accommodates a hand held firefighting spay gun, a water inlet pipe with a rotary connector and a connection unit. A positioning member capable of bearing gravity is installed on the sidewall inside the box. A rotary member is movably connected with the positioning member, from which two supporting members extend to engage and support a rotary base of a firefighting hose assembly. The rotary base includes a rolling mechanism used to roll the fire hose thereon. Two rolling disks are provided to two sides of the rolling mechanism. One rolling disk is provided with a handle to roll and release the fire hose, and the other rolling disk is connected to the water inlet pipe. The connection unit can be easily rotated out of the accommodating space in order for the fireman to easily access the fire hose and the firefighting spray gun. | 08-02-2012 |
| 20120192961 | RECONFIGURABLE WATER FLUSHING AND SAMPLING DEVICE - A reconfigurable water flushing and sampling device which permits the same device to be utilized as a manual flusher, a continuous flushing device, an automatic flushing device, or a sampling station, or combinations thereof. | 08-02-2012 |
| 20120241019 | ADJUSTABLE OPERATING ROD FOR A HYDRANT - An adjustable operating rod assembly is provided. In one embodiment a telescoping rod and tube are provided such that the length of the operating rod can be selectively adjusted in order to accommodate fluid inlet pipes of various lengths and regardless of manufacturer. | 09-27-2012 |
| 20130248009 | SWIVEL WITH OR FOR HYDRANT MANIFOLD FOR INDUSTRIAL FIRE FIGHTING - A swivel with, or for, a hydrant manifold for industrial fire fighting comprising a swivel providing an at least 6 inch flow conduit and preferably including mating male and female sleeves of stainless steel and preferably having at least two rings of stainless steel ball bearings and a location for an interior water seal. | 09-26-2013 |
| 20160069050 | MAIN VALVE WITH INTERNAL RIGID STRUCTURE - A valve assembly includes a valve plate and a reversible main valve contacting the valve plate. The main valve has an internal rigid structure and an outer shell, the internal rigid structure having a top surface, a bottom surface, and a side surface. The internal rigid structure is at least partially enclosed by the outer shell, the outer shell defining a side surface and a radially outermost edge on the side surface, the side surface of the outer shell including a beveled portion extending from the radially outermost edge of the side surface of the outer shell towards a top surface of the outer shell. | 03-10-2016 |
| 137296000 | Cap, cover or hood | 9 |
| 20080245420 | Nozzle Attachment for Fire Hydrant - A nozzle attachment device for retrofitting fire hydrants with additional structure for reducing the potential that those with ill intent can foul municipal water supplies by introducing toxins or other materials into fire hydrants. Various embodiments include a housing with a channel and connection means for the fire hydrant's nozzle for efficient and cost effective installation, a seat and a valve within the channel which interact to close off portions of the hydrant otherwise available for receipt of toxic or other materials when the fire hydrant nozzle cap is unscrewed and open. | 10-09-2008 |
| 20090025798 | Adaptable water connection for fire fighting equipment and connection device - Improvements in present day fire hydrants are presented. The improvement relates to a fire hydrant where the above ground structure is essentially removed and is replaced with an adaptable connection. The connection uses the same mounting hole pattern as used in the above ground hydrant. In operation, the adaptable connection is protected by a hinged cover that is opened to provide access to the adaptable connection. The adaptable connection includes a bayonet type connection where a portable fire hydrant is secured and rotated to start the flow of water. The adaptable fire connection eliminates the appearance of the fire hydrant, the potential of a vehicle hitting a fire hydrant and the material cost associated with above ground fire hydrants | 01-29-2009 |
| 20090301571 | Fire hydrant security cap closure system - This invention provides a fire hydrant security system with an inner cap having means for attaching an outlet port of a fire hydrant in a fixed position which includes a member capable of extending from the periphery of the inner cap into a slot in the inner part of an outer cap and having means for retracting and retaining the position of the member in the inner cap, wherein said outer cap includes means for attaching the outer cap to the inner cap so that the outer cap can spin freely with respect to the inner cap, and a key wrench having means for fitting the key wrench over the outer cap and for aligning the outer cap and key wrench in a fixed position wherein the key wrench has a magnet located on the wall of the key wrench that becomes aligned with a slot on inner wall of the outer cap and wherein the rotation of the key wrench causes the magnet to align with the member and to extend the member into the slot on the inside of the outer cap thereby joining the outer cap to the inner cap. | 12-10-2009 |
| 20100132807 | DEVICE FOR SECURING FIRE HYDRANTS BY LOCKING THE CHECK MECHANISM OF A VALVE SPIGOT - The invention relates to a device for securing a fire hydrant, includes a duct ( | 06-03-2010 |
| 20100276009 | Lock for Fire Hydrants - A lock for fire hydrants includes a stem with an activating end ( | 11-04-2010 |
| 20120261002 | Multi-Purpose Collar Attachment for Fire Hydrants - A multi-purpose reflective collar for attachment to a fire hydrant that increases the visibility of the hydrant to motorists and others, and that indicates the hydrant's flow rate, water source and pressure rating to firefighters and other first responders through the use of color coded reflective tape webs that can be removably attached to the collar. The multi-purpose reflective collar of the present invention is adjustable to accommodate fire hydrants of different shapes and sizes, and is useful in increasing safety and the efficiency of firefighting procedures. | 10-18-2012 |
| 20140373941 | PROTECTIVE FIRE HYDRANT CASING AND METHOD OF USE THEREOF - A protective-fire-hydrant-cover comprising an operating-nut-extender and a protective-fire-hydrant-casing. The operating-nut-extender is firmly coupled with an operating-nut of a fire-hydrant such that when the operating-nut-extender rotates, the operating-nut rotates therewith, the operating-nut-extender includes an inner-groove exhibiting a substantially circular shape. The protective-fire-hydrant casing includes a lock-mechanism therein, which includes a latch. The latch moves between at least a locked and un-operable position and an unlocked position. The protective-fire-hydrant-casing fits over the operating-nut-extender such that it covers the operating-nut-extender and the latch aligns with the groove. When the latch moves to locked and un-operable position the latch enters the inner-groove thus internally locking the protective fire-hydrant-casing with the operating-nut-extender thus locking the protective fire-hydrant-cover onto the fire-hydrant. When the latch is in locked and un-operable position, the protective-fire-hydrant-casing may freely rotate about the operating-nut-extender. When the latch moves to the unlocked position, the protective-fire-hydrant-casing unlocks from the operating-nut-extender. | 12-25-2014 |
| 20160076690 | Locking Cap for Fire Department Connection - A secure inlet cap protecting the inlets of a fire department connection from blockage and damage. The secure inlet cap includes a cover and lock, each having at least one tab that engages the posts of the swivels of the fire department connection inlets. When fitted over the posts and assembled with tamper-proof fasteners, the secure inlet cap securely prevents access to the inlet. In non-emergency situations, the secure inlet cap may be removed without damage by removing the fasteners. The lock includes a tool slot receiving a tool that allows the secure inlet cap to be quickly pried loose by applying force to the fasteners. Deformable areas in the cover give way when sufficient prying force is applied breaking the hold between the fasteners and the cover and allowing the cover and the lock to be separated and removed from the swivel. | 03-17-2016 |
| 20160201301 | Water Supply Outlet Cap | 07-14-2016 |
| 137299000 | With valve at outlet | 7 |
| 20100065133 | DEVICE FOR SECURING THE VALVES OF FIRE POSTS USING THE CONTROL TUBE - A device for securing a fire hydrant, includes a duct ( | 03-18-2010 |
| 20100229961 | Outdoor Wall Hydrant Employing Plastic Tubing - A hydrant is provided that employs a pipe interconnected to a faucet assembly. The pipe is constructed of a material that is resistant to detrimental affects of corrosion and pitting. Corrosion and pitting of pipes made of copper, as opposed to the plastic material employed, tends to erode a portion of the outlet pipe circumferentially such that if the pipe is later exposed to expansive effects of ice, the pipe could burst, thereby causing damage to the dwelling. | 09-16-2010 |
| 20110308638 | INFRASTRUCTURE MONITORING DEVICES, SYSTEMS, AND METHODS - An infrastructure monitoring system and method include multiple communications devices. At least one communications device is coupled to an element of the infrastructure. | 12-22-2011 |
| 20120241020 | NOZZEL CHECK VALVE - A protection system for protecting a fire hydrant is disclosed having an interior, the protection system including a nozzle having a first end to be secured to the hydrant and a second end configured to engage a fire hose coupling, the nozzle defining a bore that is in fluid communication with the interior of the fire hydrant, wherein the nozzle defines a seat disposed in the bore; and a disc disposed within the bore and configured to move axially and rotationally from a normally closed position to an open position in response to an increase in pressure within the interior of the fire hydrant. | 09-27-2012 |
| 20130042924 | FIRE HYDRANT SECURITY INTEGRATED FLOW CONTROL/BACKFLOW PREVENTER INSERT VALVE - Integrated flow control backflow preventer valve (“IFCBPV”) for new and existing wet- and dry-barrel fire hydrants, with barrel drain assemblies for dry-barrel hydrants, and hydrants equipped with such IFCBPVs, are presented. An exemplary IFCBPV can have a retaining screen comprising equidistant concave radial spokes intersecting at a central ring structure, a freely suspended check ball, and a lower ball seat with a seal. The upper surface of the retaining screen can be affixed to the hydrant's axial shaft, and can thus be used to open and close the hydrant via the ball. Alternatively, the retaining screen can be fixed and the axial shaft provided with a cup on its bottom that mates with the freely suspended ball that is caged between the retaining screen and the ball seat. An exemplary barrel drain assembly can comprise a spring-loaded piston, or alternatively, a check ball design as in the main barrel. | 02-21-2013 |
| 20140352800 | SYSTEM FOR CONTAMINANT ISOLATION AND FLUSHING - Disclosed is a hydrant including an upper barrel; at least one hose nozzle; a valve associated with the hose nozzle; an electric motor to open and close the valve; and a controller coupled to the hydrant | 12-04-2014 |
| 20150330062 | REMOVABLE FIRE HYDRANT NOZZLE WITH IMPROVED LOCKING STRUCTURE - A removable hydrant nozzle with a locking arrangement for securing the nozzle in a nozzle opening. The locking arrangement includes an axially movable slide configured to selectively engage a portion of the hydrant adjacent the nozzle opening, such as a lug mouth in a quarter-turn fitting. The slide is mounted to a slide housing and is spring loaded. In use, the slide automatically retracts as the nozzle is inserted into the nozzle opening and automatically extends into locking engagement with the mouth when the nozzle becomes fully seated. Once engaged, the slide prevents removal of the nozzle until manually disengaged. The slide may be movably mounted on a pair of shoulder bolts. The slide may include a paddle that extends outwardly where it is accessible to the operator. The nozzle may include a handle and a seal fitted onto the inner axial end of the nozzle. | 11-19-2015 |
| 137300000 | With supplemental valve | 3 |
| 20090183783 | Hydrant Shoe with Backflow Prevention Assembly - A fire hydrant system relating to protection of a water supply from contamination. The fire hydrant system includes a barrel adapted to communicate at least indirectly with a water supply; a nozzle extending from the barrel; a hydrant valve adapted to controllably regulate communication between the barrel and the water supply; a valve actuator adapted to allow actuation of the hydrant valve; a nozzle cap adapted to at least close off the nozzle opening; and a hydrant shoe in communication with the water supply, the hydrant shoe comprising a backflow prevention assembly, wherein water can flow from the water supply through the hydrant shoe into the barrel at an open position of the backflow prevention assembly disc, and wherein media cannot enter the water supply via the barrel when the backflow prevention assembly disc is in a closed position. | 07-23-2009 |
| 20140137949 | BACKFLOW PREVENTER VALVE - An insertable backflow preventer is presented. The backflow preventer is provided with a cylindrical housing. The housing has a flow transition zone, a proximal orifice/ball seat, a ball with a specific weight that equals or is close to the specific weight of the surrounding fluid, and a distal retaining screen. The housing can have a flange provided on the outside of the housing at one end to facilitate securing the valve in a pipe. The valve is self-cleaning, can be placed in any orientation in a pipe and has low hydraulic head-loss. The valve's unique cost-effective design provides for easy and relative quick installation, eliminates the need to reconfigure existing plumbing, and can be performance tested remotely. Properly installed, it can dramatically improve the security of, for example, potable water sources in a building or other context, and inasmuch as when installed it is not visible, it is tamper proof. The valve can be scaled to any size pipe or tube, and due to its internal flow dynamics is self cleaning. Multiple valves can be installed in series, and balls of varying specific weight can be used in each valve in such a series to allow for contexts where a range of fluids are sent through the same line, or to provide fail-safe operation in the event that contaminants change the specific gravity of the fluid. | 05-22-2014 |
| 20140305516 | Wall hydrant with integral shut-off valve - An embodiment wall hydrant includes a reservoir, conduits containing an operating rod assembly and a service rod assembly, and a fluid outlet with a hose connector. The service rod assembly allows water supply to the hydrant to be shut-off from the front of the hydrant which allows servicing of the hydrant without requiring water shut-off to all or a portion of the water supply to the building. Embodiments include a vacuum relief dual check valve assembly at the fluid outlet which prevents backflow of water into the hydrant. Embodiments include a box which protects the hydrant controls. | 10-16-2014 |
| 137301000 | Protection against freezing | 4 |
| 20090217984 | ANTI-FREEZING HYDRANT - An anti-freezing hydrant is provided with a hollow valve rod of which a back end is provided with a lump formed with an oblique cone where a water leakage hole is formed communicating with the valve rod. A one-way valve is provided in a inner water inlet in a valve chamber of a valve and comprises a rubber cushion being made of a soft rubber and thus elastically suppressing the inner water inlet. The bore of a back pressure stopper in a back pressure is a complement of an inner inclined cone with the oblique cone. Thus, the rubber cushion may enhance the capability of sealing of the valve. Further, the back pressure stopper may also be a good sealant for the inclined cone. | 09-03-2009 |
| 20090242039 | Ball valve cartridge for use with remote handle - A ball valve cartridge is disclosed. It is especially well suited for freezeless hydrant applications and any other application where it is positioned remotely from a handle or other actuating element. The cartridge contains a ball valve element and an internal stem with a key for rotating the ball valve element between open and closed positions. The stem has rotational stop elements that limit rotational movement of the stem and the ball valve element. In a yard hydrant application, a drain valve can be added to regulate the opening and closing of the drain hole. It has an operational range of a quarter turn or ninety degrees. | 10-01-2009 |
| 137302000 | Stop and waste | 2 |
| 20150376876 | Main Valve For Dry Barrel Fire Hydrant - A hydrant main valve includes a main seal elastically deformable between a first state and a second state, such that a main valve assembly may be inserted into a main valve elbow without removable valve seats. A main valve assembly rotation lock engages a rotation block inside the elbow preventing rotation of the main valve assembly. A rotating operating stem extension moves a main valve bottom plate relative to a drain valve body, causing main valve seal elastic deformation. | 12-31-2015 |
| 20150376877 | Biased Drain Valve for Dry Barrel Fire Hydrant - A drain valve slide and drain valve facing seal an elbow drain hole in a dry barrel fire hydrant when the main valve is closed. A first wedge on the main valve assembly engages the elbow when the main valve is opened and biases the drain valve slide and drain valve facing toward the elbow drain hole, creating a positive seal. | 12-31-2015 |
