Dispensing pen

Abstract

The present invention is related to a dispensing device. The dispensing device includes a container; a dispensing opening located at one end of the container; a plunger located inside the container; a push button associated with the plunger; and a drive mechanism configured to drive the plunger linearly inside the container from a first position towards the dispensing opening when the push button is pressed and to hold the plunger at a second position, wherein the second position is closer to the dispensing opening than the first position.

1 . A push unit configured to dispense a product from a container, comprising:
 a housing;   a push button located at a rear end of said housing;   a holding unit located at a front end of said housing configured to hold said container;   a push rod threadably engaged in a front surface of said housing and configured to push with a front portion against a plunger located inside said container; and   a rotator configured to turn said push rod so as to linearly move said front portion away from said front surface.   
     
     
         2 . The push unit according to  claim 1 , further comprising:
 an engager linked with said push button and suspended against said rotator;   wherein said engager is configured to turn said rotator when said push button is pressed.   
     
     
         3 . The push unit according to  claim 2 , wherein said engager comprises:
 a crown having saw-tooth like front blades configured to turn said rotator when said push button is pressed.