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| Number | Title | Issue Date |
| 8176987 | Self-aligning cover spring for a concealed sprinkler A spring may include an annular plate having a central aperture; a plurality of spring members protruding from the annular plate, the plurality of spring members being resiliently flexible and radially disposed around the central aperture; and a plurality of alignme... | 05/15/2012 |
| 8172001 | Pendent residential fire protection sprinklers A pendent residential fire prevention sprinkler has a frame structure extending from the sprinkler body, and a system for blocking an outlet to prevent fluid from passing through the outlet until occurrence of a predetermined condition and for unblocking the outlet ... | 05/08/2012 |
| 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 |
| 7314094 | Concealed cover for a fire sprinkler head A spring-loaded device conceals a recessed sprinkler head. Heat releases the spring and exposes the sprinkler head. ... | 01/01/2008 |
| 7290618 | Fast response sprinkler head and fire extinguishing system A fast response, upright sprinkler head includes a body having a central orifice through which fire extinguishing fluid is expelled through an outlet end. A yoke, attached to the exterior surface of the sprinkler body, extends beyond the outlet end of the sprinkler ... | 11/06/2007 |
| 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 |
| 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 |
| 7137455 | Sprinkler head with improved flow A sprinkler head assembly includes a sprinkler head body, a frame including a pair of arms extending from the body from opposed sides of the body, and a deflector mounted to the frame spaced from the outlet opening of the sprinkler head body for deflecting fire exti... | 11/21/2006 |
| 7118641 | Floor vinyl repair technique and tool A floor covering repair technique and tool includes placement of a spacer between a patch and a damaged floor covering piece before cutting through both layers. This way, the replacement patch is elevated slightly above the damaged piece and this slight elevation al... | 10/10/2006 |
| 7096964 | Sprinklers The sprinkler includes the following structural members: a body (1) with a channel for liquid supply, a thermally responsive unit with a valve (4) closing the sprinkler outlet, and a thermally responsive unit attachment. In the first alternative embodi... | 08/29/2006 |
| 7036603 | Fast response sprinkler head and fire extinguishing system A fast response, upright sprinkler head includes a body having a central orifice through which fire extinguishing fluid is expelled through an outlet end. A yoke, attached to the exterior surface of the sprinkler body, extends beyond the outlet end of the sprinkler ... | 05/02/2006 |
| 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 |
| 6976543 | Low pressure, extended coverage, upright fire protection sprinkler A low pressure, extended coverage, fire protection sprinkler, e.g., of the upright type, suitable for use in protection of at least extra hazard and high piled storage occupancies, in accordance with the 1999 Edition of NFPA 13, has a body with an internal passagewa... | 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 |
| 6960321 | Sterilization of fire sprinkler systems New and in-use fire sprinkler systems can be sterilized by employing antimicrobial gases. The gases include steam, oxygen, and chlorine. Water added to the system after sterilization can be sterilized to prevent the reoccurrence of microbiological contamination.... | 11/01/2005 |
| 6923265 | Submerged thermally sensitive element for an automatic fire sprinkler An automatic fire sprinkler device for fluidly connecting to a water system of a fire sprinkler, including: (a) a housing having an inlet for fluidly connecting with the water system, and an outlet for fluidly connecting with a discharge unit having a deflector for ... | 08/02/2005 |
| 6918545 | Sprinkler head trigger assembly A quick response trigger assembly for an automatic sprinkler head comprises an inherently unstable compression element positioned between the frame of the sprinkler body and sealing assembly. A thermal sensor surrounds the periphery of the compression element and in... | 07/19/2005 |
| 6907940 | Fast response fluid flow control valve/nozzle Disclosed herein is a fast response fluid flow control valve/nozzle that combines the technology used to rupture the frangible discs found in pressurized container-based fire protection/suppression systems with that found in fixed pipe spray/sprinkler systems. The a... | 06/21/2005 |
| 6868917 | Low pressure, early suppression fast response sprinklers A low pressure, early suppression fast response sprinkler includes a generally tubular body having an inlet ends, an opposing discharge end and an internal passageway extending between the inlet and discharge ends with a K factor greater than 16 where the K factor e... | 03/22/2005 |
| 6851482 | 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... | 02/08/2005 |
| 6840329 | Cover assembly for a concealed sprinkler head A concealed sprinkler head is mounted above the ceiling of a fire protected zone. The sprinkler head includes a housing within which a valve and other operative parts are contained. A decorative cover plate is secured to the housing to conceal the sprinkler head wit... | 01/11/2005 |
| 6715561 | Vacuum dry sprinkler system containing a sprinkler head with expulsion assembly A vacuum dry sprinkler system includes a sprinkler head formed with a body having a central orifice through which fire extinguishing fluid is expelled through an outlet end. A yoke, attached to the exterior surface of the sprinkler body, extends beyond the outlet en... | 04/06/2004 |
| 6669111 | Protector for thermally responsive member of sprinkler head A removable protector for protecting a thermally responsive member of a sprinkler head includes first and second shields each having protective surfaces. The protective surfaces are positioned to protect portions of the thermally responsive members that a... | 12/30/2003 |
| 6585054 | Fast response sprinkler head and fire extinguishing system A fast response, upright sprinkler head includes a body having a central orifice through which fire extinguishing fluid is expelled through an outlet end. A yoke, attached to the exterior surface of the sprinkler body, extends beyond the outlet end of the... | 07/01/2003 |
| 6502643 | Low pressure, early suppression fast response sprinklers A low pressure, early suppression fast response sprinkler includes a generally tubular body having an inlet end, an opposing discharge end and an internal passageway extending between the inlet and discharge ends with a K factor greater than 16 where the ... | 01/07/2003 |
| 6454017 | Upright fire protection nozzle An upright-type fire protection spray mist nozzle has a base defining an orifice through which fire-retardant fluid can flow, an inlet section having an upstream end and defining a conduit for flow of fire-retardant fluid along a orifice axis and leading ... | 09/24/2002 |
| 6439315 | Automatic sprinkler head A sprinkler head includes a body having one end adapted for connection to a supply of pressurized fluid and the other end closed by a valve element, and a thermally responsive assembly for normally holding the valve element in a closed position and openin... | 08/27/2002 |
| 6374919 | Concealed horizontal sidewall sprinkler arrangement In the representative embodiments described in the specification, a concealed horizontal sidewall sprinkler has a sprinkler body adapted to be connected to a source of fire extinguishing liquid. A cover support is mounted substantially concentrically to t... | 04/23/2002 |
| 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 |
| 6336509 | Low pressure fast response bulb sprinklers A low pressure fast response sprinkler includes a generally tubular body having an inlet end, an opposing discharge end and an internal passageway extending between the inlet and discharge ends with a K factor greater than 16 where the K factor equals the... | 01/08/2002 |
| 6296062 | Installation for extinguishing fire, spray head The invention relates to an installation for extinguishing fire, the installation comprising a number of spray heads (330a, 380a), a pipe system (381) for leading extinguishing medium to the spray heads, which spray heads comprise a holder body having an ... | 10/02/2001 |
| 6230815 | Sprinkler or spray head The invention relates to a sprinkler or a spray head comprising a housing (2), an inlet (3), a nozzle (4) mounted in the housing, a passage (17-18-13) from the inlet to the nozzle, and a holder (8) for a release means, the holder being mounted in front of... | 05/15/2001 |
| 6152236 | Combined trigger and concealing device for a sprinkler head A combined trigger and concealing device for an automatic sprinkler head comprises a first plate attached to a second plate by a heat fusible material in a partially overlapping manner. Each plate is formed with an aperture which receives an actuator depe... | 11/28/2000 |
| 6123153 | Fire protection sprinkle and release mechanism A fire protection sprinkler has a body with an orifice and a coaxial outlet for delivery of fire protection fluid from a source; a cap that resists flow of fluid from the outlet in a sprinkler standby condition; and an actuator securing the cap in the sta... | 09/26/2000 |
| 5967240 | Dry sprinkler arrangements In the particular embodiments described in the specification, a dry sprinkler has a tube-like section with a sprinkler head at one end and a threaded portion to be received in a water supply line at the opposite end and it includes an internal support str... | 10/19/1999 |
| 5967237 | Sprinkler The invention relates to sprinkler comprising a frame (2, 8, 2', 2"), into which at least one nozzle (15, 15', 15") has been mounted, whereby the frame has a fluid inlet (5, 5', 5") and a passage (13, 13', 13") for conveying extinguishing medium to at lea... | 10/19/1999 |
| 5967238 | Thermally responsive frangible bulb A thermally responsive frangible bulb containing a liquid which when heated expands to burst the bulb. In use the bulb may be positioned between a support and a sprinkler outlet cap such that when the bulb bursts the sprinkler outlet is opened. The bulb i... | 10/19/1999 |
| 5967239 | Fire-extinguishing device with a fire-extinguishing fluid A fire extinguishing device activates fire extinguishing nozzle-heads in multiple locations in response to fire-induced activation of one of the fire extinguishing nozzle-heads. The fire extinguishing nozzle-heads are connected to a supply pipe which cond... | 10/19/1999 |
