A cutter is configured to be mounted to a push rod of a caulking gun. The push rod includes a pushing portion for pushing a container containing a caulking material and a rear end portion opposite to the pushing portion. The cutter includes: an assembling portion, configured to be mounted at the rear end portion of the push rod;

and a cutting portion, connected with the assembling portion and including a cutting member. A caulking gun including the cutter is further provided.

The invention concerns a caulking gun for dispensing material comprising a stock, a cartridge keep, a push rod longitudinally moveably mounted in the stock provided at its one end with a plunger which engages the piston of a cartridge placed in the cartridge keep, a catch member placed on the push rod, a trigger coupled to the catch member via an axle and pivoting about a pivot point, means for varying the thrust output exerted on the push rod when pressing the trigger for a given strength exerted on the trigger, wherein the means for modifying the thrust output allow the displacement of the axle between at least a first position and a second position.

In order to provide a caulking gun which allows in a simple way to vary the thrust output either between fixed values or continuously, the trigger is provided on its upper part with a trigger bridge in which two long holes are provided and the means for varying the thrust output comprise a ratio bridge element which is put over the trigger bridge and trigger and which is linked to the trigger bridge via the axle which traverses the two long holes.

By displacing the axle either between fixed values or continuously, the thrust output can be varied between fixed values or continuously.

A lightweight applicator system is provided for efficient extrusive dispensing of work material from a cartridge. A body of the system includes handle and cartridge frame portions. The handle portion defines a hub structure, which includes at least first and second retention structures. The cartridge frame portion includes a cage member configured for receiving a cartridge of work material, and is releasably coupled to the hub structure in revolvable manner First and second accessory tools are coupled respectively to the first and second retention structures in detachable manner A drive portion is operably coupled to the body, and includes a drive member passing displaceably into the cartridge frame portion for forcing extrusion of work material therefrom. The handle and cartridge frame portions of the body are formed of one or more predetermined nonmetallic materials.

A dispenser assembly includes a rod, a plunger and a stopper. The rod has a plunger receiving end with a clip receiving recess. The plunger has a rod receiving structure with a rod engaging clip biased to fit to the clip receiving recess of the rod for movement therewith. The stopper has a plunger receiving space that defines an aperture extending through the plunger receiving space with the rod extending through the aperture. The plunger receiving space is dimensioned such that with the rod receiving structure of the plunger located within the plunger receiving space, movement of the rod engaging clip is restricted by contact with surfaces of the plunger receiving space preventing release of the rod from the plunger.

A common head for use in combination with a cartridge assembly, the cartridge assembly being retained within the material containment unit of a dispensing device and arranged to discharge reactive components from larger and smaller cartridges in response to actuation of the dispensing device. The common head includes inlet openings and a rigid walled tube having a partition positioned therein to define larger and smaller pathways to enable passage of the reactive components from the cartridges into and though the common head in a predetermined volumetric ratio and prevent backflow of the components which can lead to unintended curing prior to dispensing. A flexible liner arranged for positioning within one or both pathways of the rigid walled tube is also provided to prevent such backflow and unintended curing prior to dispensing.

A caulking gun incorporating a caulk tube receptacle having a dispensing end a handle end; a plunger rod having a dispensing end and having a handle end, the dispensing end of the plunger rod extending toward the caulk tube receptacle's dispensing end and the handle end of the plunger rod extending away from the caulk tube receptacle's handle end; a trigger actuator operatively supporting the plunger rod at the caulk tube receptacle's handle end; a hammerhead; and a mounting sleeve fixedly attaching the hammerhead to the handle end of the plunger rod, the caulking gun being alternatingly usable as a caulk applying tool and as a hammer for resetting protruding nail heads.

An apparatus for capping the tip of the nozzle of a caulking tube retained in a caulking gun to prevent the caulking tube from leaking caulking material such as latex or silicone during non-use. The apparatus has a cap portion, a housing portion, and a retractable flexible cord to provide a retractable cap to be used with the caulking tube placed in a caulking gun to prevent leakage when the caulking gun and caulking tube are not in use. The housing contains a retraction member which is placed under force when the cap is pulled away from the retraction member and placed over the tip of the caulking tube nozzle. When the cap is removed from the caulking tube nozzle, the tension from the retraction member causes the flexible cord to pull the cap to a location adjacent the housing so that the cap can be easily retrieved and not lost.

A dispenser includes a housing, a push rod, and a push rod driving mechanism. The push rod is moveable relative to the housing. The housing has at least two housing parts and is configured to receive at least a portion of the push rod driving mechanism to move the push rod relative to the housing. The at least two housing parts are held together by the push rod.

A universal caulking gun and method of converting a standard caulking gun into a universal caulking gun are disclosed, along with a kit of parts for converting a standard caulking gun into a universal caulking gun. The universal caulking gun that is capable of accommodating both small and large caulking tubes. It includes a combination of small and large plunger members that are configured to be removably attached to the caulking gun rod. The small and large plunger members are sized and configured to nest together and form a single plunger unit corresponding to the internal diameter of a large caulking tube. Alternatively, the small and large plunger members are separable such that the single plunger unit corresponds to the internal diameter of a small caulking tube and the large plunger can be retained in a non-functional position.

A syringe for dispensing a flowable material. The syringe has a cartridge with a cartridge front end and at least a first dispensing nozzle arranged at the cartridge front end. The syringe further has closure for openably closing the first dispensing nozzle. The closure includes a cap and at least a first seal. The cap is telescopically placeable on the cartridge front end. The closure or the cartridge has a first magnet for establishing a magnetic attraction between the closure and the cartridge. In a situation in which the closure is placed on the cartridge front end, the closure and the cartridge can be positioned in a sealing position in which the first seal spaces the cap and the cartridge front end away from each other against a magnetic attraction that urges the cap and the cartridge toward each other.