An improved dispensing device for application and dispensing of viscous liquid substances comprising of a storage reservoir, dosing mechanism with audible and tactile feedback, dispensing plunger, nozzle tip, and end of travel pressure release mechanism. The dosing and the dispensing are de-coupled, allowing a preselection of dosage volume and controlled dispensing. A pressure relief mechanism is incorporated to eliminate oozing of liquids after the termination of dispensing.

An apparatus for unclogging a surgical-suction device (21) comprising a base (22) that defines at least one hole (26). A stylet (28) extends perpendicularly from the center of the base (22) along an axis (A) for receiving the surgical-suction device (21). The stylet (28) defines an exterior and an internal chamber (32) that communicates with the hole (26) in the base (22). The stylet (28) defines at least one aperture (40) in fluid communication between the chamber (32) and the exterior of the stylet (28) for communicating with the surgical-suction device (21). A valve (60) having an open position (FIG. 1) for allowing fluid to flow through the hole (26) of the base (22) and the aperture (40) in the stylet (28) and a closed position (FIG. 2) for preventing fluid to flow through the hole (26) of the base (22) and the aperture (40) in the stylet (28).

A sealant applying device and a working method thereof, and a sealant applying apparatus are disclosed. The sealant applying device includes a nozzle: the nozzle includes an air inlet portion and a sealant outflow portion, a switch plate is arranged below the sealant outflow portion, the switch plate includes a plate body configured to horizontally move between a first state and a second state, one end of the plate body is provided with a through hole, and a discharge portion is provided at a position corresponding to the through hole and on a side of the plate body facing away from the sealant outflow portion.

A coating apparatus includes: a nozzle having a nozzle front end configured to spray a coating solution and a head configured to store the coating solution; a movement axis configured to cause the nozzle to move back and forth in a straight line; a rotating connection member configured to connect the movement axis with the nozzle and allow the nozzle to rotate; a stage disposed under the movement axis; and a cleaning means disposed at an end of the movement axis, and having a nozzle front end insertion unit in a concave shape of the nozzle front end and a base fixing the insertion unit, wherein the nozzle is fixed in a normal direction of a surface of the stage by the movement axis, moves back and forth in an extension direction of the movement axis, and rotates with respect to the movement axis.

A coating apparatus includes: a nozzle having a nozzle front end configured to spray a coating solution and a head configured to store the coating solution; a movement axis configured to cause the nozzle to move back and forth in a straight line; a rotating connection member configured to connect the movement axis with the nozzle and allow the nozzle to rotate; a stage disposed under the movement axis; and a cleaning means disposed at an end of the movement axis, and having a nozzle front end insertion unit in a concave shape of the nozzle front end and a base fixing the insertion unit, wherein the nozzle is fixed in a normal direction of a surface of the stage by the movement axis, moves back and forth in an extension direction of the movement axis, and rotates with respect to the movement axis.

The present invention discloses a slit nozzle cleaning device, the slit nozzle cleaning device comprises a scraper for cleaning the slit nozzle and an auxiliary inserting means, wherein the auxiliary inserting means is configured to guide the scraper into the slit nozzle. With the aid of the auxiliary inserting means, the scraper can enter the slit nozzle smoothly and precisely without the risk of breaking.

A precision cleaning device for cleaning and clearing a glue-dispensing needle includes a base, a supporting unit disposed on the base, a moving unit movably connected to the supporting unit, a clearing needle connected to the moving unit and facing the supporting unit, and an adjusting unit connected to the moving unit. The adjusting unit adjusts a movement of the moving unit to drive the clearing needle to move towards the glue-dispensing needle on the supporting unit, allowing the clearing needle to pass through the glue-dispensing needle to completely clean and clear the glue-dispensing needle. The cleaning device also prolongs the service life of the glue-dispensing needle.

A coating apparatus includes: a nozzle having a nozzle front end configured to spray a coating solution and a head configured to store the coating solution; a movement axis configured to cause the nozzle to move back and forth in a straight line; a rotating connection member configured to connect the movement axis with the nozzle and allow the nozzle to rotate; a stage disposed under the movement axis; and a cleaning means disposed at an end of the movement axis, and having a nozzle front end insertion unit in a concave shape of the nozzle front end and a base fixing the insertion unit, wherein the nozzle is fixed in a normal direction of a surface of the stage by the movement axis, moves back and forth in an extension direction of the movement axis, and rotates with respect to the movement axis.

An application device for applying a coating medium onto a moving surface includes an application head which extends over an entire width of the moving surface. A linear guide is provided which extends in a width direction of the application device parallel to the application head and which is provided for mounting one or a number of cleaning elements for the application head.

An internal nozzle cleaner system for a remote spray foam system for polyurethane insulation foam includes a telescopic chuck along an axis to support a tool; a motor to rotate the telescopic chuck about the axis; and a misalignment shaft coupling between the motor and the telescopic chuck to accommodate a misalignment between the axis and a nozzle of the remote spray foam system.