An application device (1) for applying a viscous material onto a substrate and a method for producing the application device (1). The application device (1) includes a ventilation device having an insert (19), which is connected air-tightly to an inner container (3) in the region of a discharge opening (18). An annular gap is formed between the insert (19) and a neck region (6) of the outer casing (2), through which annular gap air can flow from outside into an intermediate space between the outer casing (2) and the inner container (3) and vice versa. The connection between an applicator (4) and the outer casing (2) is also permeable to air and the applicator (4) includes a sealing means (25) that seals off the inner volume of the inner container (3) in an air-tight and leak-proof manner from the intermediate space.

A portable electric (battery) powered paint system designed to worn in a typical workman's tool belt and thus accompany the painter as he moves from wall to wall and room to room without the restriction of electrical cords plugged into wall outlets. The invention consists of a paint reservoir, an electric paint pump, a power pack of two or more 18 Volt batteries, a paint applicator and associated paint supply tubing for transfer of paint from the reservoir to the paint applicator. The invention provides the painter with a self-contained powered painting system.

One example of the present disclosure relates to a daubing device for applying viscous material to a fastener. The daubing device comprises a housing comprising a first internal face and a second internal face, separated from the first internal face by a longitudinal distance L. The daubing device further comprises a dispenser between the first internal face and the second internal face of the housing. The dispenser comprises a flexible wall. The daubing device also comprises a pressure-application device between the dispenser and the second internal face of the housing.

A handheld valve dispenser includes a barrel having proximal and distal ends and a fluid chamber adapted to store a fluid. A dispense tip is coupled to the distal end of the barrel and includes a piercing element and a valve seat. The piercing element is configured to pierce the seal and establish an aperture therethrough when the dispense tip is first coupled to the barrel. A valve stem is received within the fluid chamber and is movable between a closed position in which the valve stem sealingly contacts the valve seat to prevent fluid dispense, and an open position for dispensing fluid. The barrel may include an outer barrel member and a disposable inner barrel liner removably received within the outer barrel member.

A paste application device stores two starting components for mixing the starting components to form a paste and for application of the formed paste. The device comprises a two-component cartridge comprising two internal spaces, two feed plungers shiftable in the internal spaces and bordering the internal spaces on a first side of the two-component cartridge, and at least two dispensing openings by means of which the internal spaces are open on a second side of the two-component cartridge that is opposite from the first side. The device further comprises a hollow cylinder that is made of a plastic material and has one front face that is open and one front face that is partially closed, in which is situated an axially mobile plunger that has at least two pestles attached to it, wherein the at least two pestles are oriented in the direction of the open front face, wherein the open front face of the hollow cylinder is arranged to axially touch against the first side of the two-component cartridge, and a connector for a compressed gas cartridge extends through an opening in the pressure vessel wherein a flap valve can be used to regulate the volume flow of the starting components through the dispensing openings, and whereby the flap valve is operable by means of a rod assembly of the paste application device, whereby the rod assembly is supported with a clearance of at least 0.3 mm in at least one direction that is perpendicular to the main direction.

A fluid reservoir configured to attach to a pump head is disclosed. The fluid reservoir may include an attachment configured to engage with a pump head socket. The attachment may include threads at an attachment outer surface portion. The fluid reservoir may further include a fluid reservoir main body having a proximal portion and a distal portion. The proximal portion may be connected to the attachment and the distal portion may include a first sealed seam. The fluid reservoir main body may be flexible and configured to dispense fluid from the fluid reservoir when a negative pressure is applied to a fluid reservoir interior side. An attachment diameter may be equal or equivalent to a proximal portion diameter.