Manually operated dropper

Abstract

Disclosed herein is a hand-operated dropper configured to suction and discharge a predetermined amount of liquid type content upon pressing an elastic button, the hand-operated dropper including a housing, forming an external appearance of the dropper, for containing content, a housing cap for hermetically sealing an internal space of the housing from the outside, a tube coupled to an elastic button for suctioning content from the housing, the elastic button hermetically coupled to the upper end of the tube, the elastic button being also coupled to the housing cap, and a closure coupled to the housing cap while surrounding the outside of the elastic button in such a manner that opposite sides of the elastic button are exposed to the outside for suctioning a predetermined amount of content while protecting the elastic button from external force.

1 . A hand-operated dropper configured to suction and discharge a predetermined amount of liquid type content upon pressing an elastic button, the hand-operated dropper comprising:
 (a) a housing, forming an external appearance of the dropper, for containing content;   (b) a housing cap for hermetically sealing an internal space of the housing from an outside;   (c) a tube coupled to an elastic button for suctioning content from the housing;   (d) the elastic button hermetically coupled to an upper end of the tube, the elastic button being also coupled to the housing cap; and   (e) a closure coupled to the housing cap while surrounding an outside of the elastic button in such a manner that opposite sides of the elastic button are exposed to an outside for suctioning a predetermined amount of content while protecting the elastic button from external force.   
     
     
         2 . The hand-operated dropper according to  claim 1 , wherein the closure is configured in an arch-shaped structure in vertical section. 
     
     
         3 . The hand-operated dropper according to  claim 1 , wherein the closure is exposed in an elliptical shape in vertical section. 
     
     
         4 . The hand-operated dropper according to  claim 1 , wherein the tube has a relatively small inner diameter at a region adjacent to a lower end thereof. 
     
     
         5 . The hand-operated dropper according to  claim 1 , wherein the tube is provided at an outer circumference of an upper end thereof with an annular protrusion extending outward, the elastic button is provided at a lower part of an inner circumference thereof with a coupling groove corresponding to the annular protrusion, and coupling between the tube and the elastic button is achieved by the insertion of the annular protrusion of the tube into the coupling groove of the elastic button. 
     
     
         6 . The hand-operated dropper according to  claim 1 , wherein the elastic button is provided at an outer circumference of a lower part thereof with a depressed groove, the housing cap is provided at an inner circumference of an upper part thereof with a protrusion corresponding to the depressed groove, and coupling between the elastic button and the housing cap is achieved by the engagement between the protrusion of the housing cap and the depressed groove of the elastic button when the elastic button is inserted downward into the housing cap. 
     
     
         7 . The hand-operated dropper according to  claim 1 , wherein the coupling between the closure and the housing cap is achieved by undercuts. 
     
     
         8 . The hand-operated dropper according to  claim 1 , wherein the closure is made of Surlyn, and the housing cap is made of polypropylene (PP).