A mixing and dispensing device comprising an outer casing including a body portion, a handle portion, and a nozzle portion with a nozzle. A mixing manifold disposed in the body portion including a mixing chamber in fluid communication with the nozzle. Canisters within the body portion each including a valve connected to the mixing manifold movable between preventing and providing fluid communication between the canister and the mixing chamber. A trigger disposed within the handle portion and configured to move from a trigger passive to dispensing position causing the valves of each canister to move from a valve passive position to the valve dispensing position. A pull safety including a central cover and a tail tip removably disposed on the outer casing such that the central cover occludes the nozzle and the tail tip prevents movement of the trigger from the trigger passive position to the trigger dispensing position.

A mixing and dispensing device comprising an outer casing including a body portion, a handle portion, and a nozzle portion with a nozzle. A mixing manifold disposed in the body portion including a mixing chamber in fluid communication with the nozzle. Canisters within the body portion each including a valve connected to the mixing manifold movable between preventing and providing fluid communication between the canister and the mixing chamber. A trigger disposed within the handle portion and configured to move from a trigger passive to dispensing position causing the valves of each canister to move from a valve passive position to the valve dispensing position. A pull safety including a central cover and a tail tip removably disposed on the outer casing such that the central cover occludes the nozzle and the tail tip prevents movement of the trigger from the trigger passive position to the trigger dispensing position.

A handheld dispensing device has a first dispensing element configured to dispense a structural material and a second dispensing element configured to dispense a biological material. The second dispensing element is single-use and sterilizable. The first dispensing element is connectable to the second dispensing element. A dispensing system also is provided and has a sterilizable chamber; at least one robotic arm assembly and a dispensing device within the sterilizable chamber. The at least one robotic assembly is configured to move the dispensing device that has a first dispensing element and a second dispensing element. The first dispensing element is releasably connectable to the second dispensing element. An external control is device connected to the robotic arm assembly and controls the at least one robotic arm assembly. The first dispensing element dispenses a structural material and the second dispensing element dispenses a biological material.

A bubble liquid bottle includes a bottle body, a pad covering a mouth of the bottle body, a straw connected to a communication opening of the pad and inserted into the bottle body, and a head. The head is disposed on the mouth and includes a main body having outlet, inlet, and communication channels, a handle, and a pressure-relief device disposed in the communication channel and including a stopper, an elastic member for driving the stopper to block communication between the outlet channel and the communication opening, and a ring located above the outlet channel and sleeving the stopper. The handle is pivoted to the main body and inserted into the stopper for moving the stopper upward. When an internal pressure of the bottle body is greater than a predetermined value, the stopper is moved upward by the internal pressure to make the outlet channel communicated with the communication opening.

An apparatus for delivering a predetermined quantity of content from a pressurized container includes a dispensing assembly which sits on the container and connects with an upper portion of a valve stem of the valve assembly, wherein the dispensing assembly includes a) an actuator cap having a discharge passage, which is open or obstructed and wherein the actuator cap acts as a metering chamber in combination with b) an adaptor which fits inside the cap and also snuggly engages the valve stem. The cap fits snuggly over the adjuster to define a metering chamber which depending on its position can close off the metered chamber or open it to the dispensing conduit nozzle. When the cap is depressed it pushes down on the adjuster which depresses the valve. The chamber fills, but nothing is released until the upstroke.

Applicant discloses a novel method of spray applying multiple courses of a rapid cure, two part polymer sealant to an aircraft surface. The method sometimes uses a two part polymer mix for use in the aircraft industry that is applied with pneumatic mix and spray gun. The two part cartridge is used in the mix and spray gun so the mix is applied immediately upon mixing, but the two components are kept separated unless the gun is applying the mix. The multiple courses cure to form a clear sealant that allows for inspection of cracks and corrosion beneath the sealant. It cures quickly so that the coated part may be further processed, for example in the assembly line during aircraft build. Applicant further discloses multiple spray gun systems for applying such a two-part polymer mix to aircraft parts.

A dispensing adaptor for one-component polyurethane foam, which is coupled to a valve stem of a polyurethane pressurized container, the dispensing adaptor including: a tubular main adaptor body coupled to the valve stem and introducing polyurethane foam out of the pressurized container; a stem coupling portion formed at one end portion of the adaptor main body and coupled to and communicating with the valve stem; a discharging pipe extended from the other end portion of the adaptor main body; a stationary lever formed integrally with and extended from an outer wall of the adaptor main body; and an extended lever curvedly extended from the stationary lever along a lengthwise direction of the pressurized container, and making the valve stem be inclined to open with respect to an axial direction.

An apparatus to hold two or more spray cans and spray controllably with both cans is disclosed. The cans may hold the same or different colors of paint or other coating materials, and may be reproducibly aimed within the apparatus in such a way as to achieve different effects when sprayed as a set. Mechanisms to individually adjust the spray rate of the two or more spray cans are also disclosed.

A trigger mechanism rocks within a housing to activate pressurized spray. The trigger assembly has a stabilizing bar below the trigger finger guard to steady the pistol style spray head and provide a smooth pull. A trigger block inserted into the trigger finger guard and around the trigger pull provides a first safety mechanism. A thumb tab much like a safety on a rifle is a second safety mechanism.

An activator for use with an aerosol spray can is presented having a two-part housing formed from a first side and a second side that when aligned and connected together retains a trigger that is pivotally attached to one of the first and second sides. Snap fittings or a can adjuster can be used to slidably engage with the spray can to securely hold the spray can and preventing axial movement relative to the housing. A nozzle elbow is movable contained within the housing having a distal end and a proximal end, where the proximal end accepts and operatively connects with a valve stem on the spray can. A spray head is releasably positioned in the distal end of the elbow nozzle.