Abstract: The invention relates to the field of firefighting equipment, in particular to thermal locks for sprinklers, and is intended for opening sprinklers and automatically initiating the fire extinguishing. The proposed invention is characterized in that in an explosive capsule for a thermal lock comprising a housing made of brittle material, which contains a sealed cavity filled with liquid and a state sensor comprising an electrical conductor partially arranged within the housing cavity; the electrical conductor arranged within the housing cavity is divided into two parts, wherein the ends of each part contact with the liquid, while the liquid used has electrically conductive properties.

Abstract: A method of monitoring quality of extinguishing water in a sprinkler system by measuring electrical conductivity of the extinguishing water on at least one sprinkler head connected to an extinguishing water line. A quality and/or quality change of the extinguishing water is inferred from a measured conductivity value. A sprinkler head is disclosed that is suitable for carrying out the method. This sprinkler head has a connection fitting having a pipe section for connection to a free end of an extinguishing water pipe. A closure piece selectively closes the pipe section or free end of the extinguishing water pipe. A thermal trigger element holds the closure piece in a closed position in a normal state, and permits the closure piece to move into an open position at a trigger temperature. A conductivity sensor for measuring the electrical conductivity of the extinguishing water is provided on the sprinkler head.

Abstract: A sprinkler head for a sprinkler system including a pipe section, a sealing member provided over a pipe section discharge opening, an abutment connected to the pipe section via a support element, and thermal release element disposed between the abutment and sealing member. A triggering means controls active thermal triggering of the thermal release element and includes an electrical circuit board having a controller, an electric power supply, and an electrical conduction path along the thermal release element. The electrical circuit board is in electrical contact with the sealing member and support element. The abutment and sealing member are electrically connected to the electrical conduction path. Current fed by the power supply through the support element, the abutment, the electric conduction path, and sealing member is produced by means of the controller, causes active heating and thus a triggering of the thermal release element.

Abstract: A thermal triggering element having a vessel body with an outer wall formed from a rupturing material, and having a cavity enclosed by the outer wall and situated in the interior of the vessel body, and in which a triggering liquid is enclosed. The vessel body is formed so as to extend along an axial direction, with a tubular central section extending in the axial direction, and with two end sections located at the respective axial ends and in which the cavity is closed off in the manner of a cap. In order for the thermal triggering element to be protected against damage by shocks, the triggering element has a permanently acting reinforcement which reinforces the rupturing material with respect to shock loads acting transversely with respect to the longitudinal direction.

Abstract: A fire-extinguishing or fire-protection device formed from a pressure vessel filled with a pressurized extinguishing medium. The device has an exit opening closed by a closure element which can be perforated by a perforation element. The pressurized extinguishing medium is held back in the pressure vessel from a passively thermally controlled trigger valve attached directly to the exit opening. The valve has a perforation element and a thermal triggering element. The perforation element is prestressed in a triggering position and is retained by the thermal triggering element in a standby position. When the triggering element is triggered as a result of a predetermined temperature being reached, the perforation element is released moving the triggering element to the triggering position in which it perforates the closure element. A thermal trigger valve suitable for use in the fire-extinguishing or fire-protection device is disclosed.

Abstract: The invention relates to the field of firefighting equipment, in particular to thermal locks for sprinklers, and is intended for opening sprinklers and automatically initiating the fire extinguishing. The proposed invention is characterized in that in an explosive capsule for a thermal lock comprising a housing made of brittle material, which contains a sealed cavity filled with liquid and a state sensor comprising an electrical conductor partially arranged within the housing cavity; the electrical conductor arranged within the housing cavity is divided into two parts, wherein the ends of each part contact with the liquid, while the liquid used has electrically conductive properties.

Abstract: A thermal release element having a container body with an outer wall formed from a frangible material and a hollow space enclosed by the outer wall and enclosing a release fluid. The body is expanded in an axial direction with a tubular middle section extending in the axial direction and two end sections at each axial end. The middle section, as seen in a sectional plane transverse to the axial direction, has an outer contour of the outer wall that deviates from a circular or oval contour. The end sections each have a circular or an oval contour of the outer wall. Transition zones are provided between the middle and end sections where the outer contour of the outer wall transitions from the shape of the middle section deviating from a circular or oval shape, into the circular or oval shape of the end sections.

Abstract: A sprinkler head for a sprinkler system including a pipe section, a sealing member provided over a pipe section discharge opening, an abutment connected, to the pipe section via a support element, and thermal release element disposed between the abutment and sealing member. A triggering means controls active thermal triggering of the thermal release element and includes an electrical circuit board having a controller, an electric power supply, and an electrical conduction path along the thermal release element. The electrical circuit board is in electrical contact with the sealing member and support element. The abutment and sealing member are electrically connected to the electrical conduction path. Current fed by the power supply through the support element, the abutment, the electric conduction path, and sealing member is produced by means of the controller, causes active heating and thus a triggering of the thermal release element.

Abstract: A sprinkler including a housing having an outlet aperture covered by a shut-off valve, a heat-sensitive destructible element, and an actuation monitoring device. The monitoring device is configured as a current-conducting coating that is applied to a surface of the element. The coating has terminals for connecting to a circuit of a sprinkler status monitoring unit. The element is configured as a hermetic glass bulb filled with a liquid that boils at a sprinkler activation temperature. The terminals are located at one end of the heat-sensitive destructible element and are connected to the coating using clamps that encircle the surface of the element. The coating is applied to the surface using sputter deposition. The applied coating is electrically conductive and allows the bulb to be heated to a boiling temperature of the liquid with which the bulb is filled, while feeding voltage from the sprinkler status monitoring unit.

Abstract: A fire protection device for small electrical devices provided with a housing. The fire protection device includes a bursting capsule featuring a hollow space that is completely enclosed and delimited by a vessel wall, wherein a liquid is disposed in the hollow space. The liquid breaks the vessel wall at a predetermined trigger temperature due to thermal expansion thereby causing the bursting capsule to rupture. When the vessel wall ruptures and releases the liquid it has a fire preventing effect and/or a fire extinguishing effect.

Abstract: A fire protection device for small electrical devices provided with a housing. The fire protection device includes a bursting capsule featuring a hollow space that is completely enclosed and delimited by a vessel wall, wherein a liquid is disposed in the hollow space. The liquid breaks the vessel wall at a predetermined trigger temperature due to thermal expansion thereby causing the bursting capsule to rupture. When the vessel wall ruptures and releases the liquid it has a fire preventing effect and/or a fire extinguishing effect.

Abstract: A fire protection device for small electrical devices provided with a housing. The fire protection device includes a bursting capsule featuring a hollow space that is completely enclosed and delimited by a vessel wall, wherein a liquid is disposed in the hollow space. The liquid breaks the vessel wall at a predetermined trigger temperature due to thermal expansion thereby causing the bursting capsule to rupture. When the vessel wall ruptures and releases the liquid it has a fire preventing effect and/or a fire extinguishing effect.

Abstract: A fire protection device for small electrical devices provided with a housing. The fire protection device includes a bursting capsule featuring a hollow space that is completely enclosed and delimited by a vessel wall, wherein a liquid is disposed in the hollow space. The liquid breaks the vessel wall at a predetermined trigger temperature due to thermal expansion thereby causing the bursting capsule to rupture. When the vessel wall ruptures and releases the liquid it has a fire preventing effect and/or a fire extinguishing effect.

Abstract: A fire protection device for small electrical devices provided with a housing. The fire protection device includes a bursting capsule featuring a hollow space that is completely enclosed and delimited by a vessel wall, wherein a liquid is disposed in the hollow space. The liquid breaks the vessel wall at a predetermined trigger temperature due to thermal expansion thereby causing the bursting capsule to rupture. When the vessel wall ruptures and releases the liquid it has a fire preventing effect and/or a fire extinguishing effect.

Abstract: A fire-extinguishing or fire-protection device formed from a pressure vessel filled with a pressurized extinguishing medium. The device has an exit opening closed by a closure element which can be perforated by a perforation element. The pressurized extinguishing medium is held back in the pressure vessel from a passively thermally controlled trigger valve attached directly to the exit opening. The valve has a perforation element and a thermal triggering element. The perforation element is prestressed in a triggering position and is retained by the thermal triggering element in a standby position. When the triggering element is triggered as a result of a predetermined temperature being reached, the perforation element is released moving the triggering element to the triggering position in which it perforates the closure element. A thermal trigger valve suitable for use in the fire-extinguishing or fire-protection device is disclosed.

Abstract: A thermal release element having a container body with an outer wall formed from a frangible material and a hollow space enclosed by the outer wall and enclosing a release fluid. The body is expanded in an axial direction with a tubular middle section extending in the axial direction and two end sections at each axial end. The middle section, as seen in a sectional plane transverse to the axial direction, has an outer contour of the outer wall that deviates from a circular or oval contour. The end sections each have a circular or an oval contour of the outer wall. Transition zones are provided between the middle and end sections where the outer contour of the outer wall transitions from the shape of the middle section deviating from a circular or oval shape, into the circular or oval shape of the end sections.

Abstract: The invention relates to a process for increasing the proportion of components which are non-volatile under processing conditions, in basecoat compositions containing predominantly organic diluents or solvents, for the production of multicoat finishes, preferably metallic finishes. In the process according to the invention, up to 10% by weight of the components which are volatile under processing conditions, are replaced by an aliphatic polyether or by mixtures of aliphatic polyethers, the aliphatic polyethers having a mean molecular weight of not less than 300, containing not less than one hydroxyl group per molecule and being liquid under normal conditions.

Abstract: The invention relates to a process for increasing the proportion of components which are non-volatile under processing conditions, in basecoat compositions containing predominantly organic diluents or solvents, for the production of multicoat finishes, preferably metallic finishes. In the process according to the invention, up to 10% by weight of the components which are volatile under processing conditions, are replaced by an aliphatic polyether or by mixtures of aliphatic polyethers, the aliphatic polyethers having a mean molecular weight of not less than 300, containing not less than one hydroxyl group per molecule and being liquid under normal conditions.

Abstract: The invention relates to a process for the production of a multicoat coating of the basecoat/clearcoat type using a water-dilutable basecoat composition. The process comprises a basecoat composition which contains 0.1 to 4.0% by weight, based on the binder solids, of xanthan gum and 5 to 80% by weight, based on the binder solids, of crosslinked polymeric microparticles prepared from polyester polyols and polyisocyanates.

Abstract: Two-component polyurethane sealants, in particular for the direct glazing of motor vehicles, comprising (A) a pasty polyurethane component containing a polyurethane prepolymer having free isocyanate groups, and a curing agent, and (B) a pasty water-containing component, component (A) containing a blocked curing agent which can be liberated by water, and component (B) containing the water, reversibly bonded to a carrier substance which liberates the watering a delayed manner after components (A) and (B) have been mixed.