A glue gun device includes a barrel for receiving a fluid material therein, an outer casing connected with a driving end of the barrel to receive a driving unit, a pressing unit disposed in the barrel and including a pressing member that is movable to expel the fluid material out of a nozzle end, and a transmission chain that is connected to the pressing member to be operable to move the pressing member. The transmission chain is configured to extend from a leading end rearwardly, be deflected downwardly at the driving end, and extend forwardly to terminate at a trailing end to define a chain moving track along an extension path of the transmission chain. A drive transmission unit is disposed at the driving end to transmit a drive from the driving unit to the transmission chain to move the transmission chain along the chain moving track.

A screw-operated dispenser providing for prevention of breakage of an engaged screw when a user rotates a turn member in the wrong direction, i.e., repels rather than propels an elevator. A tubular body holds a supply of product, which is dispensed by action of the elevator along a threaded shaft upon turning a base to either propel or repel the elevator along the shaft which is threadably engaged with the elevator. Certain lowermost revolutions of the thread on the shaft are chamfered at the bottom edge thereof so that when the elevator is in a lowermost position on the screw shaft and a user mistakenly rotates the turn member in a repel direction, the thread of the elevator will not engage, i.e., will override, the thread of the screw shaft thereby eliminating stress and/or pressure between the threads which may result in breakage of the screw shaft and render the dispenser inoperable.

A screw-operated dispenser providing for prevention of breakage of an engaged screw when a user rotates a turn member in the wrong direction, i.e., repels rather than propels an elevator. A tubular body holds a supply of product, which is dispensed by action of the elevator along a threaded shaft upon turning a base to either propel or repel the elevator along the shaft which is threadably engaged with the elevator. Certain lowermost revolutions of the thread on the shaft are chamfered at the bottom edge thereof so that when the elevator is in a lowermost position on the screw shaft and a user mistakenly rotates the turn member in a repel direction, the thread of the elevator will not engage, i.e., will override, the thread of the screw shaft thereby eliminating stress and/or pressure between the threads which may result in breakage of the screw shaft and render the dispenser inoperable.

A plaster applicator may include: a first sleeve, a tube slidably received within the first sleeve. An applicator head may be coupled at the first end of the tube and include an applicator tube coupled in an applicator hole in the applicator head. A first valve may be operably connected within the applicator head. A filling tube may be coupled in a filling opening in the applicator head. The applicator may also include a second one-way valve operably connected within the filling tube in the applicator.

Embodiments included herein are directed towards an apparatus that may be used to dispense a fluid. The apparatus may include a housing, wherein the housing includes a first end and a motor, wherein the first end is configured to be coupled to a syringe. The motor may be configured to be operatively connected to a drive tube, wherein at least a portion of the drive tube is configured to extend from and retract into an opening in the first end of the housing in response to the motor. One or more of the motor and the drive tube may be rotationally fixed to the housing. A first end of the drive tube may be configured to be coupled to a piston of the syringe.

An improved system and method for loading paint continuously to a paintbrush is described herein. A substantially cylindrical container can comprise a first orifice, a second orifice, a void, a plunger, a rod, a biasing device, and a paint-dispenser. The first orifice at a front end of the container. The second orifice at a back end of the container. The void that can be within the container can be fillable with the paint. The rod can be slidably mounted within the second orifice and the ring. The biasing device can be positionable into expanded state, and extracted state. Further, wherein the biasing device can move relatively to the amount of paint that can placed within the void. The paint-dispenser can be connectable with the container through a hose, the paint dispenser can comprise a button. The button once actuated can be capable of releasing the paint to a paintbrush bristles.

A caulking gun is provided, including: a gun body, including a cartridge holder, the cartridge holder being adapted for receiving a caulk cartridge; a pushing rod, movably assembled to the gun body and extending into the cartridge holder, the pushing rod having a pushing portion which is movable within the cartridge holder and is adapted for pushing the caulk cartridge, and a hook pull portion connected with the pushing portion, the hook pull portion including a first hook portion and a second hook portion, at least one of the first hook portion and the second hook portion being movable to the other of the first hook portion and the second hook portion.

A dispenser and related methods of dispensing material, in particular viscous materials, from a container and through a nozzle. The dispenser includes a body portion for holding the container in a fixed relationship with the body portion, a plunger movable to advance with respect to the container to urge material from the container through the nozzle, a motor arranged to move the plunger and a controller arranged to control the motor. The motor is controlled according to a distance traveled by the plunger, for example a dispensing distance or a distance the plunger is retracted away from the nozzle, or the motor is controlled according to a speed of the plunger.

A compact drive mechanism for converting rotary motion to linear motion comprising a casing, gearbox, and beam coupled to the casing and gearbox, wherein the gearbox advances along the casing and the beam extends out from the casing simultaneously in response to rotary input to the gearbox. In its preferred embodiment, the invention comprises the drive mechanism incorporated into a handheld viscous material dispenser, wherein the beam further comprises a plunger face which acts on a viscous material cartridge, such as a caulk cartridge, to eject the viscous material from the cartridge.

The present invention relates to an applicator having a press button for discharging gel-type contents, and more specifically, an applicator having a press button for discharging gel-type contents, the applicator comprising: a pump embedded in a container body; a pressing member coupled to the upper side of the pump; a link coupled to the pressing member; and a press button formed on the outside of the link. If the press button is pressed, the link is pressed, then the pressing member connected to the link presses the pump vertically, and thereby the gel-type contents filled in the container body are pumped, and discharged through a discharge member. Thus, a predetermined amount of gel-type contents can always easily be discharged for use.