A fluid transfer assembly comprises a housing for accommodating a fluid. A bellows member disposed in the housing defines an opening therethrough adapted to be in fluid communication with an applicator assembly. The bellows member is adapted to operatively engage the applicator assembly for extension in a first direction and contraction in a second direction. The bellows member seals against the inner surface of the housing during extension and contraction for defining a variable volume chamber with the housing. Expansion of the bellows member in the first direction reduces the chamber volume for generating positive pressure in the housing and forcing fluid through a valve to the applicator assembly. Contraction of the bellows member in the second direction increases the chamber volume for generating negative pressure within the housing for drawing fluid into the chamber.

A fluid transfer assembly comprises a housing for accommodating a fluid. A bellows member disposed in the housing defines an opening therethrough adapted to be in fluid communication with an applicator assembly. The bellows member is adapted to operatively engage the applicator assembly for extension in a first direction and contraction in a second direction. The bellows member seals against the inner surface of the housing during extension and contraction for defining a variable volume chamber with the housing. Expansion of the bellows member in the first direction reduces the chamber volume for generating positive pressure in the housing and forcing fluid through a valve to the applicator assembly. Contraction of the bellows member in the second direction increases the chamber volume for generating negative pressure within the housing for drawing fluid into the chamber.

A liquid applicator for applying a liquid to a surface with an improved liquid delivery process. The liquid applicator includes a container having a container body that includes an opening and a chamber that is configured to receive and hold the liquid; and, a housing assembly removably attached to the container, the housing assembly including a liquid application element and a nozzle that delivers the liquid from the chamber to the application element, wherein the nozzle is configured to deliver the liquid from the chamber to the application element when the housing assembly is positioned in a first position with respect to the container, and wherein the container body comprises an interface, a main body portion, and a base.

A tool for applying a corrosion-protection substance to a rail for securing seats in an aircraft. The tool includes a component of elongate overall shape, with a base configured to slide along the rail, and a rollers support connected to the base. The tool also has an axle incorporated in the rollers support, which extends transversally with respect to the longitudinal direction of the component on each side of the rollers support, and rollers for applying the substance mounted on the transverse axle, one on each side of the component. The tool allows the substance to be applied effectively to the flange parts of the rail that is to be protected.

A threaded adapter device couples a liquid compound applicator, such as a paint applicator, to a liquid compound container in a liquid-tight manner, where the liquid applicator and the liquid container cannot be directly joined because they have incompatible screw-on thread configurations, but the threaded adapter device provides threads compatible with the threads of both the liquid applicator and the liquid container, as well as providing a fluid channel from the liquid container to the liquid applicator.

An apparatus for dispensing a fluid comprises a housing and a resilient liner adapted to hold the fluid disposed in the housing. A fluid transfer mechanism is in fluid communication between the liner and an applicator assembly mounted on the housing for dispensing the fluid on the skin of the user. The applicator assembly includes an actuator movable relative to the housing so as to activate the fluid transfer mechanism when the actuator is reciprocated. A fluid delivery element is held in contact against skin of a user for applying the fluid onto the skin. The fluid delivery element is supported on the actuator to be movable together with the actuator by varying contact pressure with the skin. Each movement of the actuator generates continuous negative pressure within the liner for drawing fluid through the fluid transfer mechanism and collapsing the liner.

Devices and methods are disclosed herein apply a fluid to the skin of a human or animal, in particular skin bearing hair or fur. The device comprises an array of hair plow elements, each hair plow element comprising a skin contact surface. Device is adapted to apply a fluid to skin and simultaneously lift any hair or fur covering the skin or hair or fur sprouting from the skin away from the skin so that the fluid is applied preferentially to the skin rather than to any hair or fur covering the skin. Additional embodiments of the device are described comprising a transcutaneous electrical stimulator adapted for supplying a current to the fluid and the skin. Methods of use of the device are also disclosed.

The invention is a roller liquid compound applicator configured to attach to the threaded neck of a liquid supply container for the purpose of applying a coating of a liquid compound to a target surface, and includes: a U-shaped roller support frame including a substantially cylindrical dispenser coupling cap and a drip guard attached to the dispenser coupling cap, the dispenser coupling cap having a threaded cavity configured for mating with the threaded neck of the liquid supply container; and a liquid compound roller sleeve secured to the roller support frame.

An apparatus for dispensing a fluid comprises a housing and a resilient liner adapted to hold the fluid disposed in the housing. A fluid transfer mechanism is in fluid communication between the liner and an applicator assembly mounted on the housing for dispensing the fluid on the skin of the user. The applicator assembly includes an actuator movable relative to the housing so as to activate the fluid transfer mechanism when the actuator is reciprocated. A fluid delivery element is held in contact against skin of a user for applying the fluid onto the skin. The fluid delivery element is supported on the actuator to be movable together with the actuator by varying contact pressure with the skin. Each movement of the actuator generates continuous negative pressure within the liner for drawing fluid through the fluid transfer mechanism and collapsing the liner.

A coating applicator that applies a coating or liquid to a variety of different substrates having different contoured surfaces is disclosed. A coating applicator of the present disclosure is able to reach, contact, and cover the entirety of a contoured substrate. In this manner, the coating applicator is able to transfer a coating to the entirety of the contoured substrate.