U.S. patent application number 12/978645 was filed with the patent office on 2012-06-28 for dispenser for adjusting rationing liquid.
This patent application is currently assigned to PLASTIC INDUSTRY DEVELOPMENT CENTER. Invention is credited to Jong Wu Chen, Wei Cheng Chen, Wei Shiu Chen, Hsiang Jen Hsiao, Chin Tsang Hsu, Hui Min Hsu, Po Han Huang, Wei Tsang Lai, Ming Hsien Sung.
Application Number | 20120160873 12/978645 |
Document ID | / |
Family ID | 46315438 |
Filed Date | 2012-06-28 |
United States Patent
Application |
20120160873 |
Kind Code |
A1 |
Hsu; Hui Min ; et
al. |
June 28, 2012 |
DISPENSER FOR ADJUSTING RATIONING LIQUID
Abstract
A dispenser for adjusting rationing liquid includes a base
having a space defined therein. A saddle head is movably sleeved on
the base. The saddle head has a pathway defined therein and passing
therethrough. The saddle head has a piston movably received in the
space. The piston has an outer periphery abutting against an inner
periphery of the space. A spring is sleeved on the base. An upper
valve set is mounted in the pathway and a lower valve set is
mounted in the space in the base.
Inventors: |
Hsu; Hui Min; (Taichung
City, TW) ; Hsu; Chin Tsang; (Taichung City, TW)
; Hsiao; Hsiang Jen; (Taichung City, TW) ; Chen;
Jong Wu; (Taichung City, TW) ; Chen; Wei Shiu;
(Taichung City, TW) ; Chen; Wei Cheng; (Taichung
City, TW) ; Huang; Po Han; (Taichung City, TW)
; Sung; Ming Hsien; (Taichung City, TW) ; Lai; Wei
Tsang; (Taichung City, TW) |
Assignee: |
PLASTIC INDUSTRY DEVELOPMENT
CENTER
Taichung City
TW
|
Family ID: |
46315438 |
Appl. No.: |
12/978645 |
Filed: |
December 27, 2010 |
Current U.S.
Class: |
222/321.1 |
Current CPC
Class: |
B65D 83/0038
20130101 |
Class at
Publication: |
222/321.1 |
International
Class: |
B65D 88/54 20060101
B65D088/54 |
Claims
1. A dispenser for adjusting rationing liquid comprising: a base
adapted to assemble with a bottle, the base having a space defined
therein and passing therethrough; a saddle head movably sleeved on
the base, the saddle head having a pathway defined therein and
passing therethrough, the saddle head having a piston movably
received in the space, the piston having an outer periphery
abutting against an inner periphery of the space, a spring sleeved
on the base, the spring having two ends respectively abutting
against the saddle head and the base for providing a restitution
force; a upper valve set mounted in the pathway and a lower valve
set mounted in the space in the base, the upper valve set having a
same structure with the lower valve set, each of the upper valve
set and the lower valve set having an outer ring and an inner ring
received in the outer ring, each outer ring having a plunger
disposed therein and a plurality of ribs connected with the plunger
and an inner periphery of the outer ring, each inner ring having a
guiding path defined therein, the plunger of the outer ring being
able to selectively seal the guiding path of the corresponding
inner ring; wherein when the saddle head is pressed, the piston
presses the air in the space to push the plunger of the outer ring
of the upper valve set such that the air is exhausted from the
pathway in the saddle head, the plunger of the outer ring of the
lower valve set pressed by the air to seal the guiding path of the
inner ring; when the saddle head is released and returned due to
the restitution force of the spring, the piston of the upper valve
set upwardly is moved such that the air pressure in the space is
decreased to suck the outer ring of the lower valve set upwardly
moved relative to the inner ring and to suck the liquid in the
bottle flowing into the space via the guiding path in the inner
ring of the lower valve set, in the meanwhile, the outer ring of
the upper valve set downwardly sucked by the air pressure in the
space such that the plunger is sealed the guiding path of the upper
valve set; when the saddle head is pressed again, the liquid in the
space is able to be drained from the pathway; when the saddle head
is released again, the liquid in the bottle is sucked into the
space again for providing rationing liquid.
2. The dispenser for adjusting rationing liquid as claimed in claim
1, wherein the plunger has a hemispherical shaped structure for
tightly plunging into the guiding path.
3. The dispenser for adjusting rationing liquid as claimed in claim
1, wherein the saddle head has a seat mounted in interior thereof
for receiving the upper valve set, the piston sleeved on a bottom
end of the seat, the saddle head having a skirt downwardly formed
thereon, the base located between the skirt and the seat.
4. The dispenser for adjusting rationing liquid as claimed in claim
1, wherein each guiding path has a downwardly tapered structure,
the part of each guiding path contacted with the plunger having a
rounded structure for preventing the plunger from damaging.
5. The dispenser for adjusting rationing liquid as claimed in claim
1, wherein the saddle head has a flange annularly and outwardly
extending therefrom, the two ends of the spring respectively
abutted against the base and the flange.
6. The dispenser for adjusting rationing liquid as claimed in claim
3, wherein the base has a dove-tail flange annularly and outwardly
extending therefrom, the skirt having a dove-tail flange annularly
and inwardly extending therefrom for corresponding to the dove-tail
flange of the base such that the dove-tail flange of the base and
the dove-tail flange of the skirt are buckled to each other for
preventing the saddle head detaching from the base.
Description
BACKGROUND OF THE INVENTION
[0001] 1. Field of the Invention
[0002] The present invention relates to a dispenser, and more
particularly to a dispenser for adjusting rationing liquid.
[0003] 2. Description of Related Art
[0004] A conventional dispenser provides a double pistons structure
for dispensing emulsion. The conventional dispenser includes a pump
and an inductor received in the pump. The inductor has a top
connected with a saddle head. The pump has an actuating groove
defined therein for receiving the inductor. An elastomer is located
in the actuating groove and connected with a bottom of the
inductor. A valve is positioned in a bottom of the actuating
groove. A piston set is assembled with the inductor. The piston set
includes a first piston and a second piston connected with the
first piston. The first piston includes a first tube for assembling
with the inductor and a first flange for abutting against an inner
periphery of the actuating groove. The second piston includes a
second tube for assembling with the first piston and a second
flange for abutting against the inner periphery of the actuating
groove. The conventional dispenser is strengthened due to the
double pistons structure for providing a long-wearing effect.
[0005] However, the conventional dispenser is not able to provide
quantitatively rationing. The rationing of the conventional
dispenser is decided by a pressure on the saddle head. This is
inconvenient and is not able to provide a precise ration. When the
pressure is over the expected value, the overflow dose will cause
waste.
[0006] The present invention has arisen to obviate/mitigate the
disadvantages of the conventional dispenser.
SUMMARY OF THE INVENTION
[0007] The main objective of the present invention is to provide an
improved dispenser for adjusting rationing liquid.
[0008] To achieve the objective, a dispenser for adjusting
rationing liquid in accordance with the present invention comprises
a base adapted to assemble with a bottle, a saddle head movably
sleeved on the base, an upper valve set mounted in the saddle head,
and a lower valve set mounted in the base. The base has a space
defined therein and passing therethrough. The saddle head has a
pathway defined therein and passing therethrough. The saddle head
has a piston movably received in the space. The piston has an outer
periphery abutting against an inner periphery of the space. The
saddle head has a seat mounted in interior thereof for receiving
the upper valve set. The saddle head has a skirt downwardly formed
thereon. The base has a dove-tail flange annularly and outwardly
extending therefrom. The skirt has a dove-tail flange annularly and
inwardly extending therefrom for corresponding to the dove-tail
flange of the base such that the dove-tail flange of the base and
the dove-tail flange of the skirt are buckled to each other for
preventing the saddle head detaching from the base. A spring is
sleeved on the base for providing a restitution force. The upper
valve set is mounted in the pathway and the lower valve set is
mounted in the space in the base. The upper valve set has a same
structure with the lower valve set. Each of the upper valve set and
the lower valve set has an outer ring and an inner ring received in
the outer ring. Each outer ring has a plunger disposed therein and
a plurality of ribs connected with the plunger and an inner
periphery of the outer ring. Each inner ring has a guiding path
defined therein. The plunger of the outer ring is able to
selectively seal the guiding path of the corresponding inner ring.
Each guiding path has a downwardly tapered structure. The part of
each guiding path contacted with the plunger has a rounded
structure for preventing the plunger from damaging.
[0009] In accordance with another aspect of the present invention,
the saddle head has a flange annularly and outwardly extending
therefrom. The two ends of the spring are respectively abutted
against the base and the flange.
[0010] Further benefits and advantages of the present invention
will become apparent after a careful reading of the detailed
description with appropriate reference to the accompanying
drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
[0011] FIG. 1 is an exploded perspective view of a dispenser for
adjusting rationing liquid in accordance with the present
invention;
[0012] FIG. 2 is an assembled perspective view of the dispenser for
adjusting rationing liquid in accordance with the present
invention;
[0013] FIGS. 3-4 are operational cross-sectional views of the
dispenser for adjusting rationing liquid in accordance with the
present invention; and
[0014] FIG. 5 is an assembled perspective view of a second
embodiment of the dispenser for adjusting rationing liquid in
accordance with the present invention.
DETAILED DESCRIPTION OF THE INVENTION
[0015] Referring to the drawings and initially to FIGS. 1-2, the
dispenser for adjusting rationing liquid in accordance with the
present invention comprises a base 1 adapted to assemble with a
bottle (not shown), a saddle head 2 movably sleeved on the base 1,
an upper valve set 3 mounted in the saddle head 2, and a lower
valve set 4 mounted in the base 1.
[0016] The base 1 has a tubular structure. The base 1 has a space
11 defined therein and passing therethrough. The base 1 has a lower
end adapted to connect with the bottle and the lower valve set 4 is
mounted in the lower end of the base 1 for communicating the bottle
and the space 11.
[0017] The saddle head 2 has a pathway 25 defined therein and
passing therethrough. The saddle head 2 has a piston 21 movably
received in the space 11. The piston 21 has an outer periphery
abutting against an inner periphery of the space 11. As shown in
FIGS. 1 and 3, the saddle head 2 has a seat 22 mounted in interior
thereof for receiving the upper valve set 3. The piston 21 is
sleeved on a bottom end of the seat 22. The saddle head 2 has a
skirt 23 downwardly formed thereon. The base 1 is located between
the skirt 23 and the seat 22. The base 1 has a dove-tail flange 12
annularly and outwardly extending therefrom. The skirt 23 has a
dove-tail flange 24 annularly and inwardly extending therefrom for
corresponding to the dove-tail flange 12 of the base 1 such that
the dove-tail flange 12 of the base 1 and the dove-tail flange 24
of the skirt 23 are buckled to each other for preventing the saddle
head 2 detaching from the base 1. The saddle head 2 is slidably
moved relative to the base 1. The piston 21 is able to compress and
exhaust the air in the space 11. A spring 13 is sleeved on the base
1. The spring 13 has two ends respectively abutting against an
inner periphery of the skirt 23 of the saddle head 2 and the base 1
for providing a restitution force.
[0018] As shown in FIGS. 1 and 3, the upper valve set 3 is mounted
in the pathway 25 and the lower valve set 4 is mounted in the space
11 in the base 1. The upper valve set 3 has a same structure with
the lower valve set 4. The upper valve set 3 has an outer ring 31
and an inner ring 32 received in the outer ring 31. The outer ring
31 of the upper valve set 3 has a plunger 311 disposed therein and
a plurality of ribs 312 connected with the plunger 311 and an inner
periphery of the outer ring 31. The inner ring 32 of the upper
valve set 3 has a guiding path 321 defined therein. The plunger 311
of the outer ring 31 of the upper valve set 3 is able to
selectively seal the guiding path 321 of the inner ring 32 of the
upper valve set 3. The lower valve set 4 has an outer ring 41 and
an inner ring 42 received in the outer ring 41 The outer ring 41 of
the lower valve set 4 has a plunger 411 disposed therein and a
plurality of ribs 412 connected with the plunger 411 and an inner
periphery of the outer ring 41. The inner ring 42 of the lower
valve set 4 has a guiding path 421 defined therein. The plunger 411
of the outer ring 41 of the lower valve set 4 is able to
selectively seal the guiding path 421 of the inner ring 42 of the
lower valve set 4. Precisely, each outer ring 31, 41 has three ribs
312, 412 equidistantly connected with the plunger 311, 411 and the
inner periphery of the outer ring 31, 41. The ribs 312, 412 are
provided for a restitution force to selectively seal the guiding
path 321, 421 and positioning the plunger 311, 411 to partially
insert into the guiding path 321, 421.
[0019] In the preferred embodiment of the present invention, each
plunger 311, 411 has a hemispherical shaped structure for tightly
plunging into the guiding path 321, 421. Each guiding path has a
downwardly tapered structure. The part of each guiding path 321,
421 contacted with the corresponding plunger 311, 411 has a rounded
structure for preventing the plunger 311, 411 from damaging.
[0020] With reference to FIGS. 3-4, when the saddle head 2 is
pressed, the piston 21 presses the air in the space 11 to push the
plunger 311 of the outer ring 31 of the upper valve set 3 such that
the air exhausted from the pathway 25 in the saddle head 2. The
plunger 411 of the outer ring 41 of the lower valve set 4 is
pressed by the air to seal the guiding path 421 of the inner ring
42 of the lower valve set 4. When the saddle head 2 is released and
returned due to the restitution force of the spring 13, the piston
21 of the upper valve set 3 is upwardly moved such that the air
pressure in the space 11 is decreased to suck the outer ring 41 of
the lower valve set 4 upwardly moved relative to the inner ring 42
and to suck the liquid in the bottle flowing into the space 11 via
the guiding path 421 in the inner ring 42 of the lower valve set 4.
In the meanwhile, the outer ring 31 of the upper valve set 3 is
downwardly sucked by the air pressure in the space 11 such that the
plunger 311 is sealed the guiding path 321 of the upper valve set
3. When the saddle head 2 is pressed again, the liquid in the space
11 is able to be drained from the pathway 25. When the saddle head
2 is released again, the liquid in the bottle is sucked into the
space 11 again for providing rationing liquid.
[0021] As above described, the saddle head 2 is pressed in a first
time, the air in the space 11 is exhausted outside. When the saddle
head 2 is restored, the liquid in the bottle is drained into the
space 11. Later, the space 11 is refilled with the liquid when the
saddle head 2 is pressed in every time. The dose of the liquid
drained from the saddle head 2 is the same with that refilled in
the space 11. Therefore, the dose of the liquid is stable in every
time for providing the rationing liquid.
[0022] With reference to FIG. 5, that shows a second embodiment of
the dispenser for adjusting rationing liquid in accordance with the
present invention. The elements and effects of the second
embodiment which are the same with the first embodiment are not
described, only the differences are described. The saddle head 2
has a flange 26 annularly and outwardly extending therefrom to form
a flat plate. The two ends of the spring 13 are respectively
abutted against the base 1 and the flange 26.
[0023] Although the invention has been explained in relations to
its preferred embodiment, it is to be understood that many other
possible modifications and variations can be made without departing
from the spirit and scope of the invention as hereinafter
claimed.
* * * * *