A glue gun includes a first handle and a second handle which are connected via a pivot pin shaft, and one of them is arranged as a fixed handle, and the other is arranged as a movable handle. The movable handle is provided with an actuating member configured to push a push member. A spacing between the actuating member and the pivot pin shaft is adjustable, such that the pivot pin shaft or the actuating member can switch between at least two gears and the ratio of a spacing between the pivot pin shaft and a force application point on the movable handle to a spacing between the pivot pin shaft and a force bearing point on the actuating member is changed, thus enabling a change in the force applied on the push member as well as a change in the rate of movement of a push rod.

The collapsible tubing caulking gun comprises a handle, a trigger, a squeegee, a tube grip, and a nozzle support. The collapsible tubing caulking gun may dispense caulk from a collapsible tube. Activation of the trigger may force the collapsible tube rearwards through the squeegee resulting in the caulk being forced out of the collapsible tube via a nozzle. The collapsible tube may be retained between the tube grip which retains a sealed end of the collapsible tube and the nozzle support which retains the nozzle of the collapsible tube.

The present invention provides a glue gun, comprising a movable handle and a fixed handle, wherein the movable handle is connected to fixed handle via a pivot pin shaft; the movable handle is further provided with an actuating member, and the actuating member is provided with an actuating part cooperating with a push member; and a spacing between the pivot pin shaft and the actuating part is sized to be switchable between two or more gears, such that the magnitude of the force applied by the actuating member on the push member is changed. The gear in the present invention can be adjusted to enable switching between a fast feed and a powerful feed, thereby enabling a user to make adjustment according to actual requirements.

A dripless caulking gun comprises a low friction bushing to enhance a dripless function by allowing the rod to retract more smoothly during the “dripless” phase of operation. The bushing may be changed to accommodate either a round rod or a hex shaped rod. Novel bushing designs allow rotation of the round rods but constrain the rotation of the hex shaped rods.

A spray applicator assembly discharges distributable product from a cartridge using low air pressure. The cartridge is held captive between a piston advancing from the rear to expel contents and a nozzle snugly attached at the front to receive expelled contents and to convert the contents into droplets by subjecting the contents to an array of focused high velocity air streams. The nozzle has an open barrel design and is able to discharge a variety of liquid or viscous distributable product without readjustment, other than resetting a proportioning valve in the low pressure air feed line. An air chamber immediately in front of the cartridge nose provides constant backpressure, which dominates to cleanly stop flow of distributable product into the nozzle whenever the piston stops advancing. When the piston resumes advancement, the flow restarts cleanly. Clean stopping and starting saves distributable product from waste. Variations in the distributable product might include, without limitation, a broad variety of materials including coating materials and combustibles.

A two-component dispenser includes first and second push rods guided within the two-component dispenser, first and second drive plate assemblies respectively associated with and embodied for engaging with the first and second push rods, and an actuation mechanism symmetrically arranged with respect to the first and second push rods and with respect to the first and second drive plate assemblies. The actuation mechanism displaceable in a linear manner between a release position and a plurality of dispensing positions and engaging the first and second drive plate assemblies in the dispensing positions to lock the first and second push rods by engagement with the first and second drive plate assemblies and to entrain the first and second push rods in a dispensing direction of the two-component dispenser.

A glue gun, including: a main body, one end of the main body formed as an accommodation part for accommodating a glue cylinder; a first handle and a second handle, the first handle coupled to the second handle by a pivot pin shaft, one of the first handle and the second handle configured as a fixed handle, the other configured as a movable handle pivotable relative to the fixed handle, the fixed handle coupled to the other end of the main body, wherein the movable handle is provided with an actuating member, the actuating member configured to push a push member of the glue gun; at least one of the actuating member and the pivot pin shaft is configured to be adjustable in position to vary a distance between the actuating member and the pivot pin shaft, resulting in a switching between at least two gear positions.

A caulking gun is provided, including: a gun body, a push rod, a driving member, a lever and a rotation connecting mechanism. The push rod is movably disposed on the gun body. The driving member is movably disposed within the gun body and frictionally drives the push rod. The lever is swingably disposed on the gun body and includes an abutting portion which is abuttable against the driving member. The rotation connecting mechanism connects the lever and the gun body and includes an axis with a position thereof being changeable. The lever is rotatable about the axis as a rotation center. A method for using the caulking gun as described above is further provided, including following steps of: installing a caulk cartridge to the gun body; adjusting the position of the axis of the rotation connecting mechanism; pressing the lever.

A condiment dispensing device is provided that, when activated by a user, may expel a condiment from a condiment cartridge secured within the condiment dispensing device. The condiment dispensing device includes a recess at its bottom portion in which a dampener member may be secured. When the dampener member is secured in the recess, the bottom portion of the dispensing device is flat, which results in the device being orientation within a holder in a consistent and predictable fashion. Because the dampener member may be made of a rubber or soft plastic, when the condiment dispensing device is placed in the holder, substantially less impact and noise are created than if the dispensing device were construed entirely made of metal.

An adapter couples to a single component fluid dispenser. The adapter includes a cap section, a first outlet, a second outlet, and a coupling member. The cap section has a cap interior surface that defines a cap channel extending therethrough. The first outlet defines a first outlet channel extending therethrough that is in fluid communication with the cap channel. The second outlet defines a second outlet channel extending therethrough that is in fluid communication with the cap channel. The coupling member is configured to couple the adapter to a nozzle.