Did You Know...
...that while attempting to develop a super strong glue, 3M employee Spencer Silver accidentally developed a glue that was so weak it would barely hold two pieces of paper together? However, his colleague Art Fry needed the glue. Fry sang with his church choir and marked the pages of his hymnal with small scraps of paper that often fell out. He used Silver's glue to hold the papers in place. Today we call this invention Post-it Notes.
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| Number | Title | Issue Date |
| 7416030 | Adjustable time delay for fire suppression system A mechanical time delay apparatus for creating a time delay between a pneumatic inlet for connection to a source of pressurized gas and a pneumatic outlet includes a primary pneumatic flow path from the inlet to the outlet. A movable gate is associated with the prim... | 08/26/2008 |
| 7398793 | Rapidly opening pressure regulating valve, fire extinguishing apparatus using the same, high-pressure gas cylinder apparatus and apparatus for rapidly supplying fluid A rapid opening pressure regulating valve reduced in size and having improved flow rate characteristics, a fire extinguishing apparatus using the same, a high-pressure gas cylinder apparatus, and an apparatus rapidly supplying a fluid. When the rapid opening pressur... | 07/15/2008 |
| 7389824 | Fire extinguishing system An early suppression fast response fire protection system includes a sprinkler piping system with at least one sprinkler head assembly, a water supply system, and a check valve in fluid communication with the sprinkler piping system and the water supply system. An a... | 06/24/2008 |
| 7353881 | Ganged fire extinguisher system A non-electrically actuated ganged fire extinguisher system for use in an enclosure of a size larger than the capacity of a single pre-engineered fire extinguisher comprises at least two pre-engineered fire extinguishers positioned at spaced locations in the enclosu... | 04/08/2008 |
| 7353882 | Horizontal sidewall fire protection sprinklers A horizontal sidewall fire protection sprinkler is provided, including a deflector having a vertical face, transverse to the fluid flow from the output orifice, and a horizontal shelf positioned above and perpendicular to the vertical face. A portion of the horizont... | 04/08/2008 |
| 7322423 | Dry pipe valve for fire protection sprinkler system A fire protection system comprises a supply pipe having a first fluid pressurized to a first pressure and a network of pipes having a plurality of sprinklers. The network of pipes have a second fluid being pressurized to a second pressure at approximately 5.5 times ... | 01/29/2008 |
| 7275603 | Concealed pendent fire protection sprinkler with drop-down deflector A fire protection sprinkler is provided, including a body having an output orifice and a flange and a seal cap to seal a flow of fluid from the output orifice. A thermally-responsive element is positioned to releasably retain the seal cap. Housing members extend thr... | 10/02/2007 |
| 7240740 | Diaphragm valve with pivoting closure member A valve is disclosed having an inlet duct aligned with an outlet duct and an angularly oriented elliptical seat positioned between them. A pressure chamber faces the seat. A pivoting valve closure member is positioned between the pressure chamber and the seat. An as... | 07/10/2007 |
| 7237568 | Fire-control sprinkler riser systems A fire-control riser system that provides a multi-function unitary valve system including providing pressure test, pressure relief, and drain/test fluid flow capability for fire-control sprinkler systems. Furthermore, the fire-control riser system comprises an enclo... | 07/03/2007 |
| 7237619 | Automatic fire sprinkler having a variable orifice An automatic fire sprinkler having a variable orifice, the sprinkler having a variable orifice associated with the automatic fire sprinkler, and wherein the orifice is responsive to the water inlet pressure of the sprinkler. ... | 07/03/2007 |
| 7185711 | Fire protection system A fire suppression system includes system piping and at least one sprinkler with the system piping for delivering fire suppressant to the sprinkler. The sprinkler has an outlet and a temperature sensitive trigger with temperature sensitive trigger opening the outlet... | 03/06/2007 |
| 7185668 | Closing device for fluid passage A valve device for automatically closing a gas pipe when a fire breaks out. The valve device includes a gas thermosensitive generating composition, which decomposes and generates a large amount of gas within a short period when exposed to a high temperature. The val... | 03/06/2007 |
| 7182144 | Fire-fighting robot Provided is a fire-fighting robot that can quickly start to fight a fire occurring at a hazardous location, which firefighters cannot access, and extinguish fires occurring at any location without receiving a supply of fire extinguishing water. The fire-fight... | 02/27/2007 |
| 7143834 | Sprinkler assembly A sprinkler assembly for controlling a fire situation includes at least one fluid conduit defining a flow passage including an inlet for receiving a fluid from a fluid source and at least one outlet for discharging the fluid, and a dispensing mechanism such as an op... | 12/05/2006 |
| 7104333 | Dry pipe valve for fire protection sprinkler system A differential-type dry pipe valve for a fire protection sprinkler system has a ratio of effective air sealing area to service water sealing area that is smaller than a ratio of service water pressure to system air pressure at which the fire protection sprinkler sys... | 09/12/2006 |
| 7055612 | Fire protection system A fire suppression system includes system piping and at least one sprinkler with the system piping for delivering fire suppressant to the sprinkler. The sprinkler has an outlet and a temperature sensitive trigger with temperature sensitive trigger opening the outlet... | 06/06/2006 |
| 7028924 | Sprinkler nozzle for spreading of small drops of water A sprinkler nozzle having a nozzle housing with an inlet for liquid and having a longitudinally extending axis. The nozzle housing, opposite the inlet, is delimited by a surface of revolution with nozzle outlet openings arranged around the axis. In the flow directio... | 04/18/2006 |
| 7021166 | Booster actuator A booster actuator 10 may be positioned between the solenoid 12 and a valve 14, and increases the energy output from the solenoid to activate the valve. The booster actuator 10 may include a force input member 28 and a force output... | 04/04/2006 |
| 7017673 | Sprinkling head for fire fighting systems A sprinkling or spraying head, for fire fighting systems, comprises a nozzle holder cap which is removably coupled to the body of the sprinkling head and comprises a plurality of nozzles designed for ejecting a fighting liquid in a nebulized form. ... | 03/28/2006 |
| 6976544 | Sprinkler A sprinkler comprising a temperature-activated means (1), a housing (2), a central nozzle (4), a side nozzle (5a, 5b), a first channel (9-15-6-12-13) for guiding a medium to the cent... | 12/20/2005 |
| 6962208 | Compact pendant sprinkler head A pendant sprinkler head includes a sprinkler body formed with a central orifice, and a sealing member positioned within the orifice and in sealing engagement with the inlet. A deflector assembly is at least partially positioned within the orifice and includes an an... | 11/08/2005 |
| 6955226 | Ganged fire extinguisher system A non-electrically actuated ganged fire extinguisher system for use in an enclosure of a size larger than the capacity of a single pre-engineered fire extinguisher comprises at least two pre-engineered fire extinguishers positioned at spaced locations in the enclosu... | 10/18/2005 |
| 6942040 | Method, chemical and automatic fire extinguishing system using liquified CO to regulate the distribution of fire extinguishing agents The automatic fire extinguishing method using liquefied CO2 to regulate the distribution of fire extinguishing agents characterised in that this method uses liquid CO2 as: an independent fire extinguishing agent or combined with other fire exti... | 09/13/2005 |
| 6928812 | SMA actuator safety mechanism A method and apparatus for preventing the unintended activation of SMA devices by ambient temperatures that exceed the phase transition temperature of the SMA material itself. In one embodiment a passive actuator is coupled to an active actuator, each having identic... | 08/16/2005 |
| 6889912 | Method and apparatus for removing trapped water An apparatus and method for clean, efficient removal of water and odor from a sprinkler systems including a vessel, a pump which creates a reduced pressure in the vessel, and a connector for attaching the device to the sprinkler system to remove trapped water. The v... | 05/10/2005 |
| 6871802 | Self-modulating inert gas fire suppression system A relatively low pressure inert gas hazard suppression system (20) is provided which is designed to protect a room (22) or the like from the effects of fire or other hazard. The system (20) includes a plurality of pressurized inert gas cylinders... | 03/29/2005 |
| 6848513 | Fire protection valve trim assembly system A trim assembly for a fire protection system valve includes a mounting member and a piping assembly supported by the mounting member. The piping assembly includes a priming line with an inlet for receiving priming fluid from a fire suppressant fluid supply line and ... | 02/01/2005 |
| 6810963 | Dry pipe valve for fire protection sprinkler system A differential-type dry pipe valve for a fire protection sprinkler system has a ratio of effective air sealing area to service water sealing area that is smaller than a ratio of service water pressure to system air pressure at which the fire protection sprinkler sys... | 11/02/2004 |
| 6722216 | Booster actuator A booster actuator 10 may be positioned between the solenoid 12 and a valve 14, and increases the energy output from the solenoid to activate the valve. The booster actuator 10 may include a force input member 28 and a force output... | 04/20/2004 |
| 6708772 | Container valve with tripping device for stationary fire extinguishing plants A container valve for fixed fire extinguishing systems comprises a valve body (12), a closure piston (26), one sealed end of which is introduced into the release chamber (24) and the opposite end of which has a sealing surface which can be press... | 03/23/2004 |
| 6637518 | Fire extinguishing apparatus A fire extinguishing apparatus (10) producing a mist of water vapour with a median droplet diameter of between 50 and 500 micron for extinguishing fires in a confined risk area. The mist being generated through nozzles (18) operating at | 10/28/2003 |
| 6637519 | System and method for extinguishing a fire A system and method for extinguishing or controlling a fire. The system has a source of a substance which is usable to extinguish a fire in a prescribed area, a control system, and an activation system. The control system has (a) a first state in which th... | 10/28/2003 |
| 6564877 | Automatic valve with manual override for fire engine high pressure water system An apparatus and method for releasing pressure and draining a high pressure water system includes a valve comprising a valve body having an inner cavity for water to flow therethrough, an inlet opening and an outlet opening in fluid connection with the in... | 05/20/2003 |
| 6557645 | Dry pipe valve for fire protection sprinkler system A differential-type dry pipe valve for a fire protection sprinkler system has a ratio of effective air sealing area to service water sealing area that is smaller than a ratio of service water pressure to system air pressure at which the fire protection sp... | 05/06/2003 |
| 6554077 | Quick response adjustable automatic sprinkler arrangements The sprinkler arrangements described in the specification include a sprinkler body with an axial passage and an axially movable assembly movable between a sealing position and an open position and including a Belleville washer engageable with a shoulder i... | 04/29/2003 |
| 6347669 | Sprinkler The invention relates to a sprinkler comprising a holder body (3), at least one nozzle (2), a heat-activated release means (18) and a cover (13) which in a protective position is arranged in front of said nozzle when the sprinkler is in an inactive mode, ... | 02/19/2002 |
| 6345670 | Spray head The invention relates to a spray head comprising a holder body (3'), at least one nozzle (2', 2c') and a cover (13') which in a protective position is arranged in front of said nozzle when the spray head is in an inactive mode, the spray head comprising m... | 02/12/2002 |
| 6346203 | Method for the suppression of fire A method for suppressing a fire at a burning material comprising delivering to said burning material (a) an inert gas and (b) a gaseous compound selected from the group consisting of a hydrofluorocarbon, an iodofluorocarbon, and a mixture thereof, gases (... | 02/12/2002 |
| 6341655 | Emergency shutdown system Fires in kitchen appliances are detected and controlled by a detection and control system that activates a fire extinguishing system when the fire is detected, terminates the supply of electricity and/or gas to the appliances, and initiates audible and vi... | 01/29/2002 |
| 6336510 | Sprinkler device for fire extinguishing systems A sprinkler device for fire extinguishing systems is adapted to be coupled to a fluid supply line and placed in an environment which is to be protected from fire. The device has an actuator sensitive to room temperature which causes motion of a shutter fo... | 01/08/2002 |
