U.S. patent application number 13/695222 was filed with the patent office on 2013-05-30 for liquid delivery system.
This patent application is currently assigned to RECKITT & COLMAN (OVERSEAS) LIMITED. The applicant listed for this patent is Christopher Leonard Padain, Jacobus Simon Petrus Van Diepen, Xianzhi Zhou. Invention is credited to Christopher Leonard Padain, Jacobus Simon Petrus Van Diepen, Xianzhi Zhou.
Application Number | 20130134183 13/695222 |
Document ID | / |
Family ID | 42289879 |
Filed Date | 2013-05-30 |
United States Patent
Application |
20130134183 |
Kind Code |
A1 |
Van Diepen; Jacobus Simon Petrus ;
et al. |
May 30, 2013 |
LIQUID DELIVERY SYSTEM
Abstract
A liquid delivery system comprising a base unit (2) comprising a
liquid inlet in an upwardly facing surface, a liquid duct leading
from the inlet to a liquid outlet above the liquid inlet; a pump
for pumping the liquid from the inlet to the outlet; a motor to
drive the pump; and a shroud extending upwardly in a manner which
surrounds the inlet, the system further comprising a vessel (1)
received within the shroud in an inverted configuration with its
outlet lowermost and in communication with the fluid inlet, the
vessel (1) having a refill opening (20) towards the end opposite to
the outlet.
Inventors: |
Van Diepen; Jacobus Simon
Petrus; (Guangdong, CN) ; Padain; Christopher
Leonard; (Henley on Thames, GB) ; Zhou; Xianzhi;
(Guangdong, CN) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
Van Diepen; Jacobus Simon Petrus
Padain; Christopher Leonard
Zhou; Xianzhi |
Guangdong
Henley on Thames
Guangdong |
|
CN
GB
CN |
|
|
Assignee: |
RECKITT & COLMAN (OVERSEAS)
LIMITED
Berkshire
UK
|
Family ID: |
42289879 |
Appl. No.: |
13/695222 |
Filed: |
April 20, 2011 |
PCT Filed: |
April 20, 2011 |
PCT NO: |
PCT/GB11/50784 |
371 Date: |
January 9, 2013 |
Current U.S.
Class: |
222/52 ;
222/333 |
Current CPC
Class: |
A47K 5/1202 20130101;
A47K 5/1217 20130101 |
Class at
Publication: |
222/52 ;
222/333 |
International
Class: |
B67D 1/00 20060101
B67D001/00; B65D 88/54 20060101 B65D088/54 |
Foreign Application Data
Date |
Code |
Application Number |
Apr 30, 2010 |
GB |
GB 1007232.0 |
Claims
1. A liquid delivery system comprising: a base unit comprising: a
liquid inlet in an upwardly facing surface; a liquid duct leading
from the inlet to a liquid outlet above the liquid inlet; a pump
for pumping the liquid from the inlet to the outlet; a motor to
drive the pump; and a shroud extending upwardly in a manner which
surrounds the inlet; and a vessel received within the shroud in an
inverted configuration with its outlet lowermost and in
communication with the fluid inlet, the vessel having a refill
opening towards the end opposite to the outlet.
2. A system according to claim 1, wherein there is no valve at the
outlet from the vessel.
3. A system according to claim 1, wherein the refill is selectively
closable by a closure element.
4. A system according to claim 1, wherein the base unit further
comprises a sensor to sense the presence of an object in the
vicinity of the outlet to trigger a dispensing operation.
5. A system according to claim 1, wherein the base unit is a free
standing unit.
6. A system according to claim 1, wherein the base unit contains
batteries to power the motor.
7. A system according to claim 1, wherein the vessel has a
bottle-like configuration.
8. A system according to claim 1, wherein the vessel has a cup-like
configuration.
Description
[0001] The present invention is directed to a liquid delivery
system.
[0002] In particular, it is directed to the base unit of the liquid
delivery system described in our earlier application GB
0820981.9.
[0003] The fluid delivery system comprises a base unit into which a
liquid container containing the material to be dispensed is fitted
in an inverted configuration, namely with its outlet at the
lowermost end. The base unit contains a liquid inlet in an upwardly
facing surface, a liquid duct leading from the inlet to a liquid
outlet above the liquid inlet; a pump for pumping the liquid from
the inlet to the outlet; a motor to drive the pump; and a shroud
extending upwardly in a manner which surrounds the inlet, the
shroud having an upper edge. Such a base unit is referred to
subsequently as being "of the kind described".
[0004] In use, the refill unit is provided with a valve at its
lowermost end. As the refill unit is fitted into the base, an
upwardly projecting spigot surrounding the fluid inlet opens the
valve in the refill unit to allow fluid to flow from the refill
unit into the base.
[0005] The present invention provides an alternative method for
refilling the system.
[0006] According to the present invention, a liquid delivery system
comprises a base unit of the kind described and is characterised by
the system further comprising a vessel received within the shroud
in an inverted configuration with its outlet lowermost and in
communication with the fluid inlet, the vessel having a refill
opening towards the end opposite to the outlet.
[0007] The presence of a refill opening in what will be, in use,
the top of the vessel, allows the user to refill the vessel without
ever needing to remove it from the base, rather than having to
dispose of the vessel and replace it with a new one.
[0008] In GB 0820981.9, the vessel is a bottle with a valve at the
outlet, the valve being resiliently biased to close the outlet and
arranged to be opened upon insertion into the base to open the flow
path out of the vessel and into the base. Such a valve may also be
provided in the present invention. However, as the vessel does not
need to be removed in the refilling process, such a valve is
unnecessary. As an alternative, therefore, there may be no valve to
control the flow from the outlet. In this case, in order to reduce
mess, the vessel may initially be inserted into the base when empty
and subsequently filled, or the base may be inverted such that it
is placed on top of the vessel before the assembly of the base and
vessel is overturned into its operating configuration.
[0009] In its simplest form, the vessel may be a liner with a
cup-like configuration to receive the liquid. The liner may be
provided with a removable cap for storage, transportation and
refilling purposes. Alternatively, it may have a bottle-like
configuration which itself may be selectively closable by a closure
element. This may take the form of, for example, a self-closing
valve or a removable cap which may be separate from the bottle, or
may be attached in some way, for example, by a sliding mechanism or
hinge.
[0010] An example of a system in accordance with the present
invention will now be described with reference to the accompanying
drawings, in which:
[0011] FIG. 1 is a cross-section through a dispenser having a
bottle according to GB 0820981.9 which is included for background
interest only;
[0012] FIG. 2 is a cut-away perspective view of the refill of FIG.
1 being introduced into the dispenser but not yet being
engaged;
[0013] FIG. 3 is a front perspective of a first example of a system
according to the present invention; and
[0014] FIG. 4 is a front perspective of a second example of a
system according to the present invention.
[0015] Before describing the present invention, the operation of
the dispenser with the refill of GB 0820981.9 will be described for
background interest.
[0016] The dispenser is a hands-free dispenser which is generally
suitable for domestic use. The dispenser is primarily intended to
dispense liquid soap, but may also be used to dispense other liquid
or semi-liquid products (ideally with a viscosity greater than
water), such as hand cream, body lotion, moisturiser, face cream,
shampoo, shower gel, foaming hand wash, shaving cream, washing up
liquid, toothpaste, acne treatment cream, a surface cleaner or a
sanitising agent such as alcohol gel.
[0017] The dispenser comprises two main parts, namely a vessel 1
and a base unit 2. The vessel 1 provides a reservoir of liquid to
be dispensed and is fitted to the base unit 2 as set out below.
[0018] The base has an interface 3 into which liquid is dispensed
from the refill unit. The interface 3 is in fluid communication
with a dispensing tube 4. A pump 5 is selectively operable to pump
a metered dose of the liquid along dispensing tube 4 and out of
dispensing head 6.
[0019] The base has an infrared transmitter 7A which transmits an
infrared beam through a window 8 to a receiver 7B to sense the
presence of a user's hands in the vicinity of the dispenser.
Control circuitry reacts to a signal from the proximity sensor to
activate the pump. The illustrated sensor is a break beam sensor,
but may also be a reflective sensor. Although an infrared sensor is
shown, any known proximity sensor such as a capacitive sensor may
be used. The device may be mains powered or battery powered.
[0020] The interface between the bottle 1 and base unit 2 will now
be described in greater detail with reference to FIG. 2.
[0021] The base unit 2 comprises a cowling 10 which surrounds a
significant portion of the bottle to protect and support it. A
spigot 11 projects at the base of the cowling 10. The spigot has a
plurality of castellations 13 in its top surface. An O-ring seal 14
surrounds the spigot 11 beneath the castellations 13.
[0022] When the refill 1 is placed into the base unit 2, the spigot
11 enters an annular outlet 15 in the base of the refill 1 against
which the O-ring seal 14 seals. The spigot then lifts outlet valve
element 16 against the action of resilient biasing member 17 to
open a flow path into the base. Two pressure relief valves 18 allow
air to enter the bottle as liquid is dispensed.
[0023] The refill according to the present invention is shown in
FIG. 3. This refill has the same overall shape as the previously
described refill, although it may have a different shape. The
refill may have the valve element 16 and/or one or more pressure
relief valves 18. However, these are not necessary for its
operation.
[0024] The refill 1 that has a refill opening 20 in the top which
is selectively closable by a cap 21 attached to the top of the
bottle by a flexible hinge 22.
[0025] The refill 1 may be supplied full of liquid or empty. If it
is full of liquid, it will require a removable cover. This will be
removed and the base 2 should ideally be inverted and placed on top
of the housing before the whole assembly is turned over into the
configuration shown in FIG. 3, whereupon the device can operate as
normal. Alternatively, the refill 1 may be empty in which case it
can simply be placed into the base 2 in the orientation shown in
FIG. 3. If the bottle is empty, or when a full bottle requires
refilling, a user simply opens the cap 21 and pours fresh liquid
into the refill 1 and continues to use the device in the normal
way.
[0026] Alternatively, as shown in FIG. 4, the entire top section of
the refill 1' may be removed so that the refill has a cup-like
configuration rather than the bottle-like configuration shown in
FIG. 3. This cup-like refill may be closable with a cap (larger
than the cap 21) which fits over the top of the refill.
* * * * *