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| Number | Title | Issue Date |
| 7121437 | Closed loop fluid dispensing system A fluid dispensing system includes a closure assembly. The closure assembly is configured to enclose a container opening. The closure assembly has a fluid supply tube with an opening and a shut-off valve threadedly coupled to the supply tube. The shut-off valve has ... | 10/17/2006 |
| 7111637 | Enclosure system for pressure relief device An enclosure for a pressure relief device, particularly pressure relief devices mounted on electrical equipment housings, is pre-assembled together with the pressure relief device. The enclosure, which provides for temporarily confining and directing fluids discharg... | 09/26/2006 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 5727590 | Tamper resistant construction for hydrant actuating nut A tamper resistant construction for preventing unauthorized actuation of the hydrant nut of a fire hydrant by causing any lateral pounding or upward forces applied to the tamper resistant construction to be transmitted directly to the hydrant body cover o... | 03/17/1998 |
| 5722450 | Tamper resistant construction for hydrant A tamper resistant construction for a fire hydrant including a hydrant nut actuating body for mounting on a hydrant nut, a shroud rotatably mounted on a first end portion of the hydrant nut actuating body, a cap rotatably mounted on a second end portion o... | 03/03/1998 |
| 5632301 | Tamper resistant construction for hydrant A tamper resistant construction for a fire hydrant including a hydrant nut actuating body for mounting on a hydrant nut, a shroud rotatably mounted on a first end portion of the hydrant nut actuating body, a cap rotatably mounted on a second end portion o... | 05/27/1997 |
| 5630442 | Tamper resistant construction for hydrant actuating nut A tamper resistant construction for preventing unauthorized actuation of the hydrant nut of a fire hydrant by causing any lateral pounding or upward forces applied to the tamper resistant construction to be transmitted directly to the hydrant body cover o... | 05/20/1997 |
| 5429152 | Cap for gas cylinder A cap for a cylinder of gas comprising a lower portion (2) adapted to be mounted on a gas cylinder (3) and an upper portion (1) defining internally a space (20-19) protecting a gas distribution valve structure (4) secured to the cylinder. The lower portio... | 07/04/1995 |
| 5205312 | Fire hydrant locking arrangement A fire hydrant locking arrangement which is intended for utilization on a conventional fire hydrant. Moreover, also disclosed is a method of producing a fire hydrant locking arrangement through a heat-meltable locking ring which will inhibit the unauthori... | 04/27/1993 |
| 4332331 | Rotatable valve protector for compressed gas cylinder A rotatable valve protector for a compressed gas cylinder having a neck to which a valve is attached. The valve protector comprises a rigid, hollow, open-ended, generally frustoconical element having large lateral openings affording access to the valve an... | 06/01/1982 |
