Compact container including pump having short stroke

Patent metadata

Field	Value
Publication number	US-10857554-B2
Application number	US-201514837816-A
Country	US
Kind code	B2
Filing date	Aug 27, 2015
Priority date	Aug 27, 2015
Publication date	Dec 8, 2020
Grant date	Dec 8, 2020

Abstract

The present invention provides a compact container including a pump having a short stroke distance, which includes a container body 10 formed at one side thereof with a button 11 and a container lid 20 hinge coupled to one side of the container body 10 , the compact container including; an inner container 30 formed therein with a content receiving space 31 ; a pump support plate 40 coupled to a top of the inner container 30 to seal the inner container 30 and provided at a center thereof with a cylinder 51 ; and a pump 50 installed on a center top part of the pump support plate 40 to pump a content and having a stroke distance of 1.5 mm to 2.5 mm, in which a ratio between the stroke distance and an inner diameter of the cylinder 51 is 1:5 to 1:13.

First claim

What is claimed is:

1. A compact container comprising:
an inner container ( 30 ) formed therein with a content receiving space ( 31 );
a pump support plate ( 40 ) coupled to a top of the inner container ( 30 ) to seal the inner container and provided at a center thereof with a cylinder ( 51 );
a pump ( 50 ) installed on a center top part of the pump support plate ( 40 ) to pump a content and having a stroke distance of 1.5 mm to 2.5 mm, in which a ratio between the stroke distance and an inner diameter of the cylinder ( 51 ) is 1:5 to 1:13,
wherein the pump ( 50 ) comprises:
the cylinder ( 51 ) provided on a center upper side of the pump support plate ( 40 ) and formed at a bottom surface thereof with a content suction hole ( 58 ) that descends downwardly towards the content receiving space ( 31 );
a suction valve plate ( 52 ) mounted on the bottom surface of the cylinder ( 51 ) to selectively open and close the content suction hole ( 58 );
a bushing ( 53 ) coupled to an outer side of the cylinder in such a manner that the bushing ( 53 ) is seated on an upper end of the cylinder ( 51 );
a piston ( 55 ) provided at an inner side of the cylinder ( 51 );
a piston ring ( 56 ) fitted around an outer side of the piston ( 55 ) to make close contact with an inner side surface of the cylinder ( 51 );
an up-down moving member ( 57 ) coupled to an inner circumferential surface of the piston to move up and down; and
an elastic member ( 54 ) to elastically support the up-down moving member ( 57 ),
wherein the suction valve plate ( 52 ) rests above the content receiving space ( 31 ),
wherein a gap ( 59 ) of 3.0 mm to 1.2 mm is formed between an inner peripheral part ( 532 ) of the bushing ( 53 ) and an outer extension wheel ( 572 ) of the up-down moving member ( 57 ) such that the up-down moving member ( 57 ) is movable in the bushing ( 53 ), and
wherein an inner end part of the inner peripheral part ( 532 ) of the bushing ( 53 ) has a round shape.

2. The compact container of claim 1 , further comprising a discharge plate ( 60 ) provided on an upper side of the pump ( 50 ) and formed with a plurality of discharge holes ( 61 ).

3. The compact container of claim 1 , wherein the up-down moving member ( 57 ) is provided at a center lower side thereof with the inner extension wheel ( 571 ), which extends to be coupled to the piston ( 55 ), and the outer extension wheel ( 572 ) which extends while being spaced apart from an outer side of the inner extension wheel ( 571 ) by a predetermined distance so as to be fitted around an outer side of the piston ring ( 56 ).

4. The compact container of claim 1 , wherein a through hole ( 531 ), through which the outer extension wheel ( 572 ) of the up-down moving member ( 57 ) passes through, is formed at a center of the bushing ( 53 ), and an inner peripheral part ( 532 ) extends in the through hole ( 531 ).

5. The compact container of claim 4 , wherein a close contact wheel ( 562 ) is formed at an upper end of an outer side of the piston ring ( 56 ).

6. The compact container of claim 1 , wherein a top part of the piston ring ( 56 ) spreads outward, an outer side of the top part of the piston ring ( 56 ) is closely inserted into an inner side of the outer extension wheel ( 572 ) of the up-down moving member ( 57 ), and a piston blade ( 561 ) of the piston ring ( 56 ) makes close contact with an inner side surface of the cylinder ( 51 ), so that an inside of the cylinder ( 51 ) is sealed by the piston ring ( 56 ) even when the up-down moving member ( 57 ) is pressed while being inclined to one side, whereby normally operating the pump ( 50 ).

7. The compact container of claim 1 , wherein a close contact wheel ( 562 ) is formed at an upper end of an outer side of the piston ring ( 56 ).

Assignees

• Pum Tech Korea Co Ltd

Inventors

• Lee Do Hoon

Classifications

• A45D34/00 Primary

  Containers or accessories specially adapted for handling liquid toiletry or cosmetic substances, e.g. perfumes · CPC title

• B05B11/1025

  a spring urging the outlet valve in its closed position (B05B11/1026 takes precedence) · CPC title

• B05B11/1001 Primary

  Piston pumps (B05B11/1087, B05B11/1088, B05B11/109 take precedence) · CPC title

• B05B1/14

  with multiple outlet openings (B05B1/02, B05B1/26 take precedence); with strainers in or outside the outlet opening · CPC title

• B05B11/0032

  Manually actuated means located downstream the discharge nozzle for closing or covering it, e.g. shutters (automatically removed during actuation of a spray pump B05B11/1053) · CPC title