A three-dimensional (3D) drawing pen can include a housing that has a port that permits insertion of a strand of material into the housing. The strand can be moved through the housing toward a nozzle assembly configured to permit the strand to be extruded out of the 3D drawing pen in a form that retains its shape against gravity in free space to draw a 3D object.

A three-dimensional (3D) drawing pen can include a housing that has a port that permits insertion of a strand of material into the housing, an actuator for controlling a movement of the strand, and a nozzle assembly configured to permit the strand to be extruded out of the 3D drawing pen in a form that retains its shape against gravity in free space to draw a 3D object.

A hot melt glue gun includes a charging cylinder mounted to the rear of the gun with chambers for holding solid glue sticks. The cylinder is mounted to the hot melt gun housing via a centered shaft allowing it to revolve circumferentially. The cylinder is mounted in a position on the back of the glue gun so that each chamber when rotated to the top aligns with the glue stick entry port in the back of the glue gun. Each chamber has resilient flanges within the chamber that cause friction when a glue stick is inserted into the chamber, thus lightly securing the glue stick before it is pushed forward into the glue gun port and taken up by the trigger activated forward grip.

A three-dimensional drawing device can include a housing configured for to be held in user's hand, shaped to allow manipulation of the housing like a pen, and configured to accept a strand of thermoplastic material. The drawing device has a nozzle assembly with an exit nozzle and a motor connected to a gear train that engages the strand such that rotation of the motor causes the feed stock to be extruded out of the exit nozzle to form a three-dimensional object. The motor can be controlled using a variable speed control mechanism or first and second actuators, thereby controlling movement of the strand, for example, to advance or retract the strand relative to the nozzle assembly.

Aspects herein relate to an applicator wand that is configured to melt a solid marking material and apply the melted marking material onto a receiving medium. Aspects of the applicator wand include a heating and melting element enclosed within an external casing, a receiving compartment configured to receive one or more solid marking materials, and an applicator tip for applying the melted marking material onto a receiving medium to create a design, drawing, picture, sketch, and the like on the receiving medium.

A stick-type hot-melt adhesive body for use in hot-melt glue guns, the hot-melt adhesive body having at least one first section containing at least one reactive adhesive and at least one second section containing at least one cleaning agent (purging agent), the first section and/or the reactive hot-melt adhesive and the second section and/or the cleaning agent differing optically and/or visually from one another, in particular being of different colors.

A hot melt adhesive applicator with one or more air outlets configured to direct a pressurized heated air stream transversely toward hot melt adhesive discharged through a discharge port of the applicator. A controller can switch between two modes, a discharge completion mode where the heated air stream pressure is temporarily increased to automatically eliminate or reduce hot melt adhesive stringing and an application mode where the heated air stream assists in heating or maintaining the hot melt adhesive at or above melt temperature.

A handheld gun-type cannabis rosin oil press and dispenser is described and claimed having a piston feeding mechanism comprising a trigger arranged to drive clamping means to grasp a piston and move the piston towards a melt chamber of the gun to feed the piston face against the cannabis floral material in the melt chamber. The force of the piston combined with the precisely controlled heat of the chamber causes the extraction of rosin oil from the cannabis material and subsequent dispensing from the outlet orifice of the gun.

An improved hot melt glue gun with an automatic glue stick feeding structure includes a housing that is gun-shaped and that includes an inlet and an outlet. A glue stick feeding module is mounted in the housing and located adjacent to the inlet. The glue stick feeding module includes a motor connected to a casing. The casing includes a passage and a through-hole. The passage is located in the casing and intercommunicates with the inlet. The through-hole is aligned with the passage in a transverse direction. An activation module includes an activation rod reciprocatingly and movably extending through the through-hole. A micro switch is located adjacent to the activation module and is electrically connected to the motor. The micro switch is configured to be pressed by the activation rod to activate the motor. A hot melt module is mounted in the housing and located adjacent to the outlet.

An improved hot melt glue gun with an automatic glue stick feeding structure includes a housing that is gun-shaped and that includes an inlet and an outlet. A glue stick feeding module is mounted in the housing and located adjacent to the inlet. The glue stick feeding module includes a motor connected to a casing. The casing includes a passage and a through-hole. The passage is located in the casing and intercommunicates with the inlet. The through-hole is aligned with the passage in a transverse direction. An activation module includes an activation rod reciprocatingly and movably extending through the through-hole. A micro switch is located adjacent to the activation module and is electrically connected to the motor. The micro switch is configured to be pressed by the activation rod to activate the motor. A hot melt module is mounted in the housing and located adjacent to the outlet.