Abstract: A skull mounting system for headgear, preferably a respirator hood, includes a headband with a front headband and a rear headband. The front headband extends around at least the front of the head of the wearer and the rear headband is found on the back of the head of the wearer, and at least one upper headband is provided that extends over the top of the head of the wearer. The upper headband has higher elasticity than the front and rear headbands.

Abstract: A nozzle for a spray gun, in particular a paint spray gun, has at least one material nozzle having a hollow portion for the passage of material to be sprayed; a material outlet opening; and a disk element extending radially from the material nozzle and having at least one passage opening. The nozzle has at least one first baffle disk which is arranged on the disk element and has an inner and an outer circumference. The first baffle disk is arranged on the disk element directly, in particular without a sealing element arranged inbetween. The disadvantages that separate sealing elements have to be specially produced and may be lost or damaged, can thereby be avoided. The nozzle according to the disclosure and related nozzle sets, paint spray guns and methods for producing nozzles are functionally reliable, have only few individual parts and a compact design and are quiet.

Abstract: A set of nozzles for a spray gun, especially a compressed-air paint spray gun, comprises at least one nozzle module group with at least two different nozzle modules for mounting in or on the same base module of a spray gun. The nozzle modules have different medium flow rates under the same spray conditions, the spray jets generated by the nozzle modules having substantially the same spray jet section height and the same spray jet section width, the spray jet sections of the different nozzle modules in particular being congruent. A spray gun system, a method for embodying a nozzle module, a method for selecting a nozzle module from a set of nozzles for a paint job, a selection system, in particular a “slide gate system”, and a computer program product are also disclosed. The user can select the nozzle module which is ideal for the paint job and mode of operation in question.

Abstract: A main body for a spray gun, in particular a paint spray gun, has at least one head region for attachment of a nozzle arrangement. The head region has at least one inner wall, one outer wall and one middle wall arranged therebetween. The walls are formed in encircling fashion and in one piece with the main body, with the front end of the middle wall set back in relation to the front end of the outer wall along an axis. This main body does not require any additional sealing element for sealing between the atomization air region and horn air region. The middle wall is well protected against damage even when a nozzle has been unscrewed, and the gun head can be of very compact design.

Abstract: A skull mounting system for headgear, preferably for a respirator hood, is described. The skull mounting system comprises a headband with a front head strap, which extends around the front of the head of a wearer, and a rear head strap, which is found on the back of the head of the wearer. The rear head strap is connected to the front head strap by means of two swivel joints. The swivel joints are at least partially freely rotatable in a corresponding adjustment position and are not rotatable in a corresponding locked position.

Abstract: A fluid reservoir for a spray gun, which fluid reservoir has a material outlet which is configured for the direct and/or indirect connection to a spray gun. The fluid reservoir has a ventilation device, via which air can flow into the fluid reservoir in order to ensure a pressure compensation when coating material flows out from the fluid reservoir via the material outlet. Advantageously, the ventilation device includes a device on the outside of the fluid reservoir and separately to a ventilation opening and a latching device, which device cooperates as a centering device, a retaining device and/or a guide device with the closure element.

Abstract: A fluid reservoir for a spray gun, which fluid reservoir has a material outlet configured for the direct and/or indirect connection to the spray gun. The fluid reservoir includes a material container and a cover arrangement for closing the material container in a detachable manner. An inner bag is arranged in the material container and can be filled with coating material. The fluid reservoir is configured in such a manner that it can be filled with coating material optionally with or without the inner bag and can be used for dispensing the coating material via the material outlet to the spray gun. A flow cup arrangement includes a flow cup and an inner bag. The inner bag can be used with different flow cups.

Abstract: A fastening unit, in particular a fastening unit for modules which are intended to supply a user of a breathing mask or breathing hood with breathable air, and to such modules. The fastening unit is designed to secure one module relative to another module, and has a first component part for assembly with the other module and a second component part for assembly with the module. The second component part is rotatable, by means of the first component part, about a predetermined angle relative to the first component part; and first and second subcomponents within the region of the defined angle can engage with each other in a plurality of positions.

Abstract: A fluid reservoir for a spray gun, which fluid reservoir has a material outlet which is configured for the direct and/or indirect connection to a spray gun. The fluid reservoir includes a material container which is closed at least at one end face by a disk-shaped closing wall. A ventilation device is arranged on the outside of the closing wall. Advantageously, the closing wall is provided with a concavity which uniformly extends over the closing wall.

Abstract: A spray gun fluid reservoir has a material outlet which is configured for the direct and/or indirect connection to a spray gun. The fluid reservoir includes a material container and a screw cap closing the material container. During a detachable and fluid-tight connection of the material container and the screw cap and the forming of a screw connection, an edge region of the material container is to be arranged in a receiving groove at the screw cap. Advantageously, a central region of the screw cap, which adjoins the receiving groove, is designed as a continuation of at least a predominant part of an inner limb of the receiving groove.

Abstract: A paint cup for a paint spray gun includes a paint container which has an opening and comprises a container wall and a lid which closes the opening. A coupling section of the container wall is arranged in a liquid-tight manner between a first and a second clamping surface of a lid system comprising the lid. The container wall is made of a natural fibrous material, in particular a cellulose-based fibrous material. In a method for sealingly closing such a paint cup, the coupling section is radially and/or axially clamped upon sealingly connecting the lid and the container wall made of natural fibrous material.

Abstract: A spray gun includes first and second air outlet channel arrangements. At least one parameter, in particular pressure, volume flow and/or flow speed of air flowing through the first arrangement and at least one parameter, in particular pressure, volume flow and/or flow speed of air flowing through the second arrangement can be controlled independently of one another in an open and/or closed loop manner. The spray gun also includes a third air outlet channel arrangement and at least one parameter, in particular pressure, volume flow and/or flow speed of air flowing through the third arrangement can be controlled in an open and/or closed loop manner independently of at least one parameter of the first arrangement, and/or independently of at least one parameter of the second arrangement. Thus, three different types of air (atomisation, shaping, and transporting) can each be controlled independently providing increased flexibility in use for different painting tasks.

Abstract: A paint cup for a paint spray gun includes a paint container which has a container wall and a base. The base is made of a natural fibrous material, in particular a cellulose-based fibrous material, so as to be pierceable and has a piercing point or region in order to ventilate the paint cup. In a method for using the paint cup with a base which is made of a natural fibrous material, the base is pierced in order to form a ventilation valve.

Abstract: A spray gun, in particular a pressurised air atomisation paint spray gun, in particular a hand-held pressurised air atomisation paint spray gun has at least one material nozzle for discharging a material to be sprayed, at least one air nozzle for outputting air, in particular air for atomising a material to be sprayed, air for changing the shape of a spray jet, and/or air for transporting an atomised spraying medium, and at least one air chamber, in particular an air chamber adjoining the air nozzle or at least one air outlet opening of the air nozzle in the upstream direction, for supplying the air nozzle with air. The spray gun also has at least one device for inputting and/or adjusting and/or detecting and/or determining and/or displaying the air pressure in the air chamber during operation of the spray gun.

Abstract: A spray gun has at least one air valve that can be actuated by at least one trigger, having at least one valve inlet region and at least one valve outlet region. The spray gun has at least one material valve designed in such a way that it can be pneumatically actuated by air from the at least one valve outlet region. With this design, the force to be exerted to actuate the actuation element by the user of the spray gun is significantly lower than in prior spray guns, which allows for effortless operation.

Abstract: A filter element, in particular a replaceable filter element, more particularly for separating particles and/or gases and/or liquids, in particular a filter cartridge for use in a filter, more particularly a compressed air filter, in particular as a component of a filter comprising multiple filtration stages, includes a substantially tubular body with an annular end face that faces a filter head, an underside, and a circumferential surface. Multiple, preferably four, retaining arms, running radially in relation to the central axis, are provided in the region of the end face and a toroidal filter-element sealing surface is provided on the end face, and the retaining arms protrude in relation to the filter-element sealing surface. The filter element is usable in a filter.

Abstract: A seal arrangement for a filter for fluid-tight sealing between a filter element and a filter head includes an annular elastic seal, a filter head sealing face and a filter element sealing face. The seal has a filter head side facing the filter head sealing face, a filter element side facing the filter element sealing face, an inner face running circumferentially on the inner side, and an outer face running circumferentially on the lateral side. The filter head side has a circumferential first recess between the inner and outer faces. The filter element side has a circumferential second recess between the inner and outer faces. The seal arrangement is configured in such a way that the seal, when subjected to a pressure from the inner face and/or from the outer face, is wedged in the direction of the acting force, between part faces of the sealing faces that narrow toward the middle.

Abstract: A temperature-control device for heating and/or cooling gases or gas mixtures. The temperature-control device includes at least one air inlet, at least one air outlet and at least one vortex tube. The vortex tube(s) each have a vortex tube inlet, a hot air outlet and a cold air outlet. The at least one air inlet is connectable with at least one vortex tube inlet of the at least one vortex tube. The at least one air outlet can be connected at least in one flow direction with at least one hot air outlet and at least one cold air outlet of the vortex tube(s). At least one control element selectively adjusts the amount of air flow between the at least one hot air outlet and the at least one air outlet or between the at least one cold air outlet and the at least one air outlet.

Abstract: A sealing element seals a transition between a body of a spray gun, in particular a paint spray gun, and an attachment of a spray gun, in particular a paint spray gun, in particular a paint nozzle. The sealing element is configured so that it forms an axially acting sealing surface and a radially acting sealing surface with the body and/or the attachment when the attachment is arranged in body. An attachment, in particular a paint nozzle arrangement for a spray gun, in particular a paint spray gun, and a spray gun, in particular a paint spray gun can each have such a sealing element. Due to the axially acting sealing surface and the radially acting sealing surface, the sealing element provides a significantly improved sealing effect relative to sealing elements of the prior art.

Abstract: A paint gun for atomizing (in particular by way of compressed-air-assisted atomization) and applying a coating material such as a paint has a material-guiding part, a non-material-guiding part, and a transmitting and/or receiving device for wireless signal transmission. In order to increase the functional reliability and provide optimal operability in the environment in which the coating material is applied, the transmitting and/or receiving device for wireless signal transmission is arranged at a distance from the material-guiding part and is associated with the non-material-guiding part. Alternatively or additionally, an increased functional reliability is achieved by designing the transmitting and/or receiving device for wireless signal transmission in accordance with two different radio standards. Furthermore, a material application system comprising such a paint gun as well as a method for operating same are described.