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| Number | Title | Issue Date |
| 8020579 | Fire hydrant security cap closure system This invention provides a fire hydrant security system having an inner cap with an outlet port on 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 wherei... | 09/20/2011 |
| 7322563 | Arrangement for securing in-ground water valves Underground water valves having square operating nuts, such as but not limited to critical water valves which control different pressure zones or different demand areas, are secured by a shielding cap, each of which have a recess that receives a valve operating nut ... | 01/29/2008 |
| 7314057 | Pedestal hydrant A fluid delivering hydrant providing a valve actuated assembly with enclosing shroud and water resistive doom handle assembly to protect the assembly from exposure to the weather while preventing entry of rainwater into a building structure upon the roof of which th... | 01/01/2008 |
| 7278442 | Vented port-cap for fire hydrant The vented port-cap includes a check-valve, which admits air into the barrel of the hydrant when the pressure inside is lower than the pressure outside. After an inspection of the hydrant, the hydrant can be left to drain by itself, even though the port-cap has been... | 10/09/2007 |
| 7216667 | Valve opening/closing handle lock mechanism A valve opening/closing handle lock mechanism provided in a valve having a manually operated valve opening/closing handle (1) is capable of maintaining the security of the valve by preventing the valve from being opened or closed by accident or with malicious... | 05/15/2007 |
| 7204384 | Dual cover system with clamping closure mechanism In a cover of a container for a dual cover system, wherein the cover and container have both either a round or a polygonal shape with a seal arranged between the container and the cover and wherein the cover includes at least two clamping closure mechanisms operable... | 04/17/2007 |
| 7178787 | Valve assembly An improved valve assembly (100) includes a primary spring (142) which extends along a valve stem (144). A spring retainer (150) holds the primary spring (142) on the valve stem (144) and has a thread convolution (152... | 02/20/2007 |
| 7172173 | Switch valve having a locking effect A switch valve includes a valve body, a control stem rotatably mounted on the valve body, a limit ring mounted on the valve body, a locking member secured on the control stem and hidden in the limit ring, and a rotation head removably mounted on the limit ring and d... | 02/06/2007 |
| 7140212 | Locking cover plate arrangement A locking cover plate can be selectively locked in position on a stortz pipe end fitting or can be unlocked and removed for access to the open pipe end. The cover plate includes a sliding plate that is driven laterally outward into a deployed state by rotating a dri... | 11/28/2006 |
| 7128068 | Device housing for an aerosol container A housing for a mechanical or electrical device for use with an aerosol canister for containing chemical comprising a sleeve for receipt of the aerosol canister; a collar affixable around the neck of the canister; and a joint between the sleeve and the collar to sec... | 10/31/2006 |
| 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 |
| 7124999 | Switch valve having a locking effect A switch valve includes a valve body, a control stem rotatably mounted on the valve body to open/close a water flow in the valve body, a limit ring mounted on the valve body to encompass the control stem, and a rotation head removably mounted on the limit ring and d... | 10/24/2006 |
| 7118091 | Tool for controlling water supply A tool for shutting off water supplies is disclosed. A variety of water supply valves can be controlled with a single too. The tool has different fittings on each end, such as wrenches. The wrenches may be of variable width to accommodate a large number of water sup... | 10/10/2006 |
| 7040342 | Fire hydrant lock A fire hydrant security arrangement includes a center post which is retained on the operating nut of the fire hydrant by a central bolt which is threaded into the operating nut. The center post has a pentagonal recess therein which receives an insert, the insert hav... | 05/09/2006 |
| 7032616 | Gas and liquid storage tank dome shell protective cover A gas and liquid storage tank dome shell protective cover for engaging the edge of a U-shaped opening in a dome shell to seal the opening and the storage tank service line extending through the opening to prevent creatures big and small from entering into the dome s... | 04/25/2006 |
| 6994106 | Fire hydrant locking device A locking device to inhibit unauthorized operation of a fire hydrant includes a locking plug having a bottom opening that fits over an actuating nut of the hydrant. The locking plug has a cylindrically-shaped body formed with an upper actuator nut. A peripheral groo... | 02/07/2006 |
| 6948512 | Flushing attachment for hydrant A device and method for automatically flushing hydrants. The device is installed externally to an existing hydrant. The device comprises a nipple having an internally threaded collar for attaching the device to a hydrant outlet, a valve, a control for automatically ... | 09/27/2005 |
| 6935360 | Fire hydrant protective cover and visibility marker A fire hydrant protective cover and visibility marker comprising a hollow body having an interior space, a cap portion, middle portion and bottom portion, the bottom portion having an opening for accessing the interior space. ... | 08/30/2005 |
| 6907760 | Locking cover plate arrangement A locking cover plate can be selectively locked in position on a stortz pipe end fitting or can be unlocked and removed for access to the open pipe end. The cover plate includes a sliding plate that is driven laterally outward into a deployed state by rotating a dri... | 06/21/2005 |
| 6901950 | Fire hydrant locking device Fire hydrant locking devices prevent fire hydrants from being turned on without a key. A fire hydrant has a keyhole in its sidewall. A security bolt is threadedly inserted into the keyhole with one end frictionally engaging with the valve stem in the interior of the... | 06/07/2005 |
| 6820635 | Flushing attachment for hydrant A device and method for automatically flushing hydrants. The device is installed externally to an existing hydrant. The device comprises a nipple having an internally threaded collar for attaching the device to a hydrant outlet, a valve, a control for automatically ... | 11/23/2004 |
| 6816072 | Fire hydrant anti-tamper device A detection and signaling apparatus is mountable in a fire hydrant to detect a parameter, such as unauthorized movement of a discharge nozzle cap relative to the fire hydrant. A housing carrying a sensor, such as a motion detector, is mounted inside of the cap. The ... | 11/09/2004 |
| 6802338 | Fire hydrant securing arrangements A fire hydrant securing arrangement utilizes a magnetic detent to couple an outer body to a center post so that when a wrench with a permanent magnet is mated with the outer body, the magnetic detent connects the outer body to the center post. The center post has an... | 10/12/2004 |
| 6698261 | Locking cap system A locking cap is selectively locked into place within a tubular opening, such as the open end of a standpipe used to charge a building sprinkler system. The locking cap has an expandable sleeve and a spreader member. As a key is turned, the spreader membe... | 03/02/2004 |
| 6694783 | Locking cover plate arrangement A locking cover plate can be selectively locked in position on a stortz pipe end fitting or can be unlocked and removed for access to the open pipe end. The cover plate includes a sliding plate that is driven laterally outward into a deployed state by rot... | 02/24/2004 |
| 6691732 | Hydrant security device The present invention provides a hydrant locking device to be used in conjunction with a fire hydrant having locking nuts which includes, a base arm having a first base arm portion and a second base arm portion. A top arm extends upwardly from the base ar... | 02/17/2004 |
| 6688326 | Locking fire hydrant A locking fire hydrant includes a fire hydrant body having an outlet port, a valve access hole, and an outer surface with a recess defined therein. The recess is configured to receive a locking cap for closing off the outlet port and the valve access hole... | 02/10/2004 |
| 6684900 | Installation device for yard hydrant A device and method for installing yard hydrants which renders the yard hydrant easily installed and replaced. The device includes a buried adapter, a sleeve, and a cap. The buried adapter has an inlet for attachment to a buried water system pipe, an outl... | 02/03/2004 |
| 6553795 | Locking cover plate arrangement A locking cover plate can be selectively locked in position on a stortz pipe end fitting or can be unlocked and removed for access to the open pipe end. The cover plate includes a sliding plate that is driven laterally outward into a deployed state by rot... | 04/29/2003 |
| 6536462 | Fire hydrant cover A cover is provided for selectively covering and uncovering a fire hydrant or the like so that the hydrant is protected and easily located and maintained. The cover has an upper cover portion formed to enclose the fire hydrant when positioned over the fir... | 03/25/2003 |
| 6487882 | Locking cap system A locking cap is selectively locked into place within a tubular opening, such as the open end of a standpipe used to charge a building sprinkler system. The locking cap has an expandable sleeve and a spreader member. As a key is turned, the spreader membe... | 12/03/2002 |
| 6474358 | Fire hydrant safety box A fire hydrant safety box provides a user with a product that could be used to surround and protect fire hydrants from physical damage. The fire hydrant safety box includes a tubular member has an upper edge, a lower edge and a peripheral wall that extend... | 11/05/2002 |
| 6463953 | Fire hydrant protection device An apparatus is disclosed comprising a first cover and an attachment device to which the first cover is connected, wherein the attachment device can be used to attach the first cover to a fire hydrant such that the first cover covers the first nozzle cap.... | 10/15/2002 |
| 6112761 | Fire hydrant locking device and wrench A fire hydrant locking device comprises a clamp which engages the hydrant stem and includes apertured butterfly wings which are engaged by a forked rod locking the stem in a closed position. The rod extends through a donut to engage a tubular recess in th... | 09/05/2000 |
| 6109292 | Method and apparatus for removing and replacing the tamperproof device for a fire hydrant or other valve device A method and system for installing, removing and actuation a rotatable keyed actuation portion or lower valve stem portion of a fire hydrant or other valve device consisting of a first device for installing a rotatable keyed actuation portion, a second de... | 08/29/2000 |
| 6089253 | Fire hydrant security systems A fire hydrant security system for mounting on a standpipe of a fire hydrant wherein the hydrant has a mounting surface with holes therethrough and a bonnet mounted on the mounting surface, the bonnet surrounding a valve operating spindle assembly. The sy... | 07/18/2000 |
| 5957154 | Fire hydrant adaptor and cover A fire hydrant adaptor and cover for attachment to the uncovered outlet pipe of a fire hydrant. The fire hydrant adaptor and cover includes an adaptor pipe having a first end with internal threads of attachment to the fire hydrant outlet, and a second end... | 09/28/1999 |
| 5941274 | Method and apparatus for securing a fire hydrant or other valve devices A method and system for securing the exposed valve stem of the hydrant valve system in order to conserve valuable reserve resources and maintain street water pressure by restricting the unauthorized use therefrom; including a first device keying the expos... | 08/24/1999 |
| 5924437 | External shutoff valve for fire hydrants A kit for the emergency shutoff of a fire hydrant after the hydrant stem has failed and a cap of the hydrant nozzle has been removed so that a jet of water is escaping from the hydrant. The kit comprises a two-part increaser and a shutoff valve. The two p... | 07/20/1999 |
| 5810044 | Fluid control system A system for controlling fluid flow from an outlet aperture, particularly a standpipe such as a fire hydrant. There is a first cylindrical collar element for location around the standpipe and connected with that element a second cylindrical element such t... | 09/22/1998 |
