A flow-through device includes a body, including a stem; a cap; a neck; a piston; and an applicator; and a bottle including a reservoir configured to hold a solution, wherein the piston is attached to the stem at a predetermined distance along a length of the stem away from a bottom face of the reservoir when the stem is inserted into the reservoir, forms a seal with a sidewall of the reservoir, and is configured to displace the solution filled in the reservoir into a hollow channel volume of the stem, an interior applicator volume of the applicator, and an interior cap volume of the cap, and the reservoir is filled with an overfilled volume of the solution filling into the hollow channel volume of the stem, the interior applicator volume of the applicator, and the interior cap volume of the cap.

A trigger assembly can be used to activate a motor controller to cause a motorized device to respond in a certain manner. For example, when the motorized device is a power tool, based on a number of pulls of the trigger, the motor controller can run the power tool in a forward direction or a reverse direction. A power tool running in the forward direction can receive a tap of the trigger. A timer can be started upon detecting the pull of the trigger. Another tap of the trigger can be detected within a time period determined based on the timer. The power tool can be forced to perform a reverse operation when the other tap f the trigger is within the time period.

A flow-through device includes a body, including a stem; a cap; a neck; a piston; and an applicator; and a bottle including a reservoir configured to hold a solution, wherein the piston is attached to the stem at a predetermined distance along a length of the stem away from a bottom face of the reservoir when the stem is inserted into the reservoir, forms a seal with a sidewall of the reservoir, and is configured to displace the solution filled in the reservoir into a hollow channel volume of the stem, an interior applicator volume of the applicator, and an interior cap volume of the cap, and the reservoir is filled with an overfilled volume of the solution filling into the hollow channel volume of the stem, the interior applicator volume of the applicator, and the interior cap volume of the cap.

A method, computer program product, and apparatus for receiving, at a fluid dispensing apparatus, a control signal, wherein the control signal may be received from a base station, wherein the control signal, when received, may cause the fluid dispensing apparatus to perform operations. The operations may include generating a positive pressure within a fluid cartridge of the fluid dispensing apparatus by adjusting, via a motor of the fluid dispensing apparatus, a drive rod and piston of the fluid dispensing apparatus in a first direction relative to the fluid cartridge to dispense fluid in the fluid cartridge via a nozzle of the fluid dispensing apparatus. The operations may include generating a negative pressure within the fluid cartridge by adjusting, via the motor, the drive rod and piston in a second direction relative to the fluid cartridge to draw fluid into the fluid cartridge via the nozzle.

An applicator for ejecting doses of a flowable component includes a housing, an application tip connected to the housing, an actuation mechanism, and an insert which is detachable from the housing. The insert is adapted to be inserted into the housing, and has a storage volume for the flowable component. The housing includes a receiving portion adapted to the insert. The insert includes a drive portion which is adapted to cooperate with the actuation mechanism so that the operation of the actuation mechanism results in a displacement of the insert relative to the housing and on a displacement axis.

According to the present invention there is provided an applicator for dispensing a liquid, the applicator comprising; a body, a holder for holding a supply of liquid to be dispensed, a nozzle mounted on the body for dispensing the liquid, an elongate priming chamber within the body for receiving liquid from the holder, an elongate delivery chamber within the body for receiving liquid from the priming chamber, a piston assembly having a piston located in the delivery chamber and being moveable in a first direction to draw liquid from the priming chamber into the delivery chamber and in a second opposite direction for passing liquid from the delivery chamber to the nozzle, a drive arrangement capable of effecting incremental movement of the piston in the second direction for metered dispense of the liquid, and a first actuator for operating the drive arrangement for effecting said incremental movement.

Spackling or caulking devices using cartridges for applying spackling or caulking to one or more surfaces or objects and methods of using the same.

This invention is a gun shaped device used in the application of caulk, paste and or other semi solid high viscosity fluids. The device contains a barrel portion for the tube to be inserted into, and a plunger portion with a flat round metal piece with a fitting that attaches to a set of shortened rods. The set of shortened rods acts as a plunger and goes through a guide toward the back of the handle. The barrel can be shortened for use of smaller tubes of caulk.

A method, computer program product, and apparatus for receiving, at a fluid dispensing apparatus, a control signal, wherein the control signal may be received from a base station, wherein the control signal, when received, may cause the fluid dispensing apparatus to perform operations. The operations may include generating a positive pressure within a fluid cartridge of the fluid dispensing apparatus by adjusting, via a motor of the fluid dispensing apparatus, a drive rod and piston of the fluid dispensing apparatus in a first direction relative to the fluid cartridge to dispense fluid in the fluid cartridge via a nozzle of the fluid dispensing apparatus. The operations may include generating a negative pressure within the fluid cartridge by adjusting, via the motor, the drive rod and piston in a second direction relative to the fluid cartridge to draw fluid into the fluid cartridge via the nozzle.

An applied liquid applicator for discharging applied liquid by turning of an operating portion provided to a barrel main body achieves improved filling efficiency of the applied liquid stored in the barrel main body with respect to an inside capacity of the barrel main body. The applied liquid is fed to the applicator portion through the first valve and the applied liquid feed path by turning the operating portion and sliding the piston in the front-back direction by use of the cam mechanism portion.