A concealable sprinkler head includes a frame having a body mountable to a fire suppression liquid source, a pair of frame arms and a pair of corresponding drop pins slidably engaged with a respective frame arm. A thermal trigger is supported within the sprinkler frame. A fluid deflector is secured to the drop pins and includes a generally horizontal surface. The drop pins extend substantially orthogonally from the horizontal surface. An inclined surface of the fluid deflector extends angularly upwardly from the horizontal surface. A concealing cup surrounds the frame arms. A cover plate is attached to the concealing cup, covering the distal end thereof, wherein the drop pins and the deflector are positioned within the concealing cup. The cover plate is removable from the concealing cup permitting the drop pins and the deflector to axially slide out of the concealing cup into an operational position.

An activation assembly for a sealed container includes a striker, a detent, and a shape memory alloy (SMA) wire connected to the detent. The SMA wire may move the detent from a first position to a second position relative to the striker based on activation of the SMA wire where, in the first position, the detent is engaged with the striker, and, in the second position, the detent is disengaged from the striker and the striker is movable from a stowed position to a deployed position.

A method and device for protecting and installing a fire protection sprinkler. The method includes torquing the sprinkler with a protective device strapped about the sprinkler and pulling a releasing segment of the device to expose operational components of the installed sprinkler. The protective device includes a first and second member having a hinged connection about which the members pivot with respect to one another between an open configuration and a closed configuration. At least one of the members includes a torque assist portion for applying the torque to the sprinkler and a releasing segment spaced laterally from the hinge connection to pivot the members from the closed configuration to the open configuration and release the protective device from the sprinkler.

A method and device for protecting and installing a fire protection sprinkler. The method includes torquing the sprinkler with a protective device strapped about the sprinkler and pulling a releasing segment of the device to expose operational components of the installed sprinkler. The protective device includes a first and second member having a hinged connection about which the members pivot with respect to one another between an open configuration and a closed configuration. At least one of the members includes a torque assist portion for applying the torque to the sprinkler and a releasing segment spaced laterally from the hinge connection to pivot the members from the closed configuration to the open configuration and release the protective device from the sprinkler.

A global fire suppression system includes a primary controller, and a plurality of local fire suppression systems. Each local fire suppression system includes a secondary controller coupled to the primary controller, at least one detection device coupled to the secondary controller, and at least one release device coupled to the secondary controller. Each secondary controller is configured to act as the primary controller should the local fire suppression system become isolated from the primary controller.

A sprinkler assembly includes a fire protection sprinkler and a push-to-connect-rotate-to-release (PCRR) fitting. The sprinkler has a body with a passageway extending along a first longitudinal axis and an outer encasing surface surrounding the first longitudinal axis and outer encasing surface including a seal member, and a deflector spaced from the outlet. The fitting includes a tubular member including an exterior surface and inner surface, the inner surface defining an internal conduit extending along a second longitudinal axis, the body received in the internal conduit such that the first longitudinal axis is aligned with the second longitudinal axis, the inner surface including a sealing surface portion circumscribed about the second longitudinal axis. The fitting includes a gripper ring disposed along the inner surface and a helical internal periphery about the second longitudinal axis in helical contact with a portion of the outer encasing surface between the deflector and seal member.

A method and device for protecting and installing a fire protection sprinkler assembly having a thermally responsive trigger. The method includes shielding and torqueing a fire protection sprinkler with a protective device having a torque assist portion. The protective device includes a first and second member strapped about the sprinkler assembly. Each of the members of the protective device has a first lateral end and a second lateral end disposed about the thermally responsive trigger. At least one of members has a concave segment and a convex segment formed between the first lateral end and the second lateral end. The convex and concave segments define therebetween an external torque assist surface of the protective device that can be used to manually torque and install the sprinkler assembly.

A device and method of protecting and installing a fire protection sprinkler. The protective device is embodied as a tubular cap that axially receives the sprinkler. The protection and installation device includes an internal gripping portion for engaging the sprinkler. The protection and installation device includes a wall that maintains its geometry before receiving the sprinkler the same after receiving the fire protection sprinkler. Moreover, the protective installation device maintains its geometry constant to sufficiently torque the sprinkler into a fitting for installation.

A device and method of protecting and installing a fire protection sprinkler. The protective device is embodied as a tubular cap that axially receives the sprinkler. The protection and installation device includes an internal gripping portion for engaging the sprinkler. The protection and installation device includes a wall that maintains its geometry before receiving the sprinkler the same after receiving the fire protection sprinkler. Moreover, the protective installation device maintains its geometry constant to sufficiently torque the sprinkler into a fitting for installation.

A device for protecting and installing a fire protection sprinkler. The protective device is embodied as a tubular cap that axially receives the sprinkler. The protection and installation device includes a wall with a stiffening element to facilitate the strength and rigidity of the device so that it can sufficiently transfer a torque to install the protected sprinkler.