U.S. patent application number 17/020526 was filed with the patent office on 2020-12-31 for fluid management/control system.
The applicant listed for this patent is ENASI Industries Inc.. Invention is credited to Igor Armano, Sergio Armano.
Application Number | 20200407953 17/020526 |
Document ID | / |
Family ID | 1000005086986 |
Filed Date | 2020-12-31 |
United States Patent
Application |
20200407953 |
Kind Code |
A1 |
Armano; Sergio ; et
al. |
December 31, 2020 |
Fluid Management/Control System
Abstract
A system for monitoring and controlling a flow of fluid in an
environment and a method of using the system to control the flow of
fluid in the environment. The system comprises a main valve
positioned at an entry point of the environment. The main valve
permits fluid to be discharged into the environment upon receipt of
an authorized request to a controller from one or more authorizing
signaling devices. The controller communicates with the authorizing
devices and processes signals from the authorizing signaling device
to control the flow of fluid in the environment. The system may
also comprise one or more monitoring signaling devices positioned
in the environment intermediate the main valve and an authorizing
signaling device.
Inventors: |
Armano; Sergio;
(St-Chrysostome, CA) ; Armano; Igor;
(St-Chrysostome, CA) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
ENASI Industries Inc. |
Chateauguay |
|
CA |
|
|
Family ID: |
1000005086986 |
Appl. No.: |
17/020526 |
Filed: |
September 14, 2020 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
|
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15878567 |
Jan 24, 2018 |
10794049 |
|
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17020526 |
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Current U.S.
Class: |
1/1 |
Current CPC
Class: |
G05D 7/0641 20130101;
E03B 7/071 20130101; E03B 7/078 20130101; Y02A 20/15 20180101 |
International
Class: |
E03B 7/07 20060101
E03B007/07; G05D 7/06 20060101 G05D007/06 |
Claims
1. A system for monitoring and controlling a flow of fluid in an
environment, the system comprising: a main valve positioned at an
entry point of the environment, wherein the main valve permits
fluid to be discharged into the environment upon receipt of an
authorizing signal thereto; one or more authorizing signaling
devices, wherein each authorizing signaling device (i) is
associated with a respective outlet tap or valve from which fluid
can be requested, (ii) is positioned intermediate the main valve
and the respective outlet with which it is associated, and (iii)
has a unique identifier associated therewith; a controller in
communication with each of the authorizing signaling devices,
wherein each of the authorizing signaling devices can request
authorization from the controller to discharge fluid to the
respective outlet tap or valve with which it is associated; a
supply network of one or more lines, tubes and/or pipes in the
environment, wherein the supply network of one or more lines, tubes
and/or pipes permit the flow of fluid through the main valve
through the at least one or more of the authorizing signaling
devices and to each outlet associated with the one or more
authorizing signaling devices; wherein the controller receives an
authorization request from the authorizing signaling device,
determines whether the requested authorization from the authorizing
signaling device is an authorized request, and provides an
authorizing signal to the main valve to permit the flow of fluid
through the main valve upon a determination by the controller that
the authorization request from the authorizing signaling device is
an authorized request.
2-16. (canceled)
17. A method of controlling a flow of fluid in an environment,
wherein the environment comprises a main valve positioned at an
entry point, wherein the main valve permits fluid to be discharged
into the environment upon receipt of an authorizing signal thereto,
one or more authorizing signaling devices, wherein each authorizing
signaling device (i) is associated with a respective outlet tap or
valve from which fluid can be requested, (ii) is positioned
intermediate the main valve and the respective outlet with which it
is associated, and (iii) has a unique identifier associated
therewith, wherein each authorizing signaling device is in fluid
communication with the main valve, and a supply network of one or
more lines, tubes and/or pipes, wherein the supply network of
lines, tubes and/pipes permits the flow of fluid through the main
valve, through the one or more authorizing signaling devices, and
to each respective outlet associated with the one or more
authorizing signaling devices, wherein each of the authorizing
signaling devices and the main valve is in communication with a
controller; the method comprising the steps of: registering a
unique identifier of the main valve with the controller;
registering the unique identifier of each authorizing signaling
device with the controller; and programming the controller to
receive signals from at least the authorizing signaling devices and
to send signals to at least the main valve, wherein the authorizing
signaling device can request discharge of fluid to their respective
outlet/tap valve upon initiation of a request from the authorizing
check valve to the controller; and wherein the controller processes
signals from each authorizing signaling device to control the flow
of fluid within the environment.
18-20. (canceled)
Description
FIELD OF THE INVENTION
[0001] The present invention relates generally to a fluid
management system for managing the flow of fluid into and within an
environment.
BACKGROUND OF THE INVENTION
[0002] The control of the flow of fluid into and within an
environment is desirable to prevent unauthorized flow of fluid and
to minimize leaks within the environment.
[0003] For example, water leaks in homes and businesses can cause
major damage to a structure and be extremely costly. Leaks can
occur in numerous places through a home or office, often in
locations that are inaccessible or undetectable by an occupant. In
addition, such leaks may also occur when the home or business is
unoccupied for any period of time or due to extreme temperature
conditions. Such leaks can cause significant damage even if
discovered quickly, and even more significant damage if the leak
exists for a period of time.
[0004] Pipes are typically connected to a main water supply line
and are maintained under constant pressure. In a conventional
arrangement, pipes maintain a full volume of water within the
plumbing, even when there is no need for water by a user. As a
result, any leak that develops has the potential to release the
full volume of water held by the system, even if the water supply
is cut off. Even more likely, if the leak is not detected
immediately, water can continue to release out of the system,
causing extensive damage.
[0005] U.S. Pat. No. 9,690,303 to Minton, Jr. describes an
electronic water management system that utilizes wireless
transmitters in communication with electronic valves at a manifold
to restrict the flow of unnecessary water into a structure to limit
damage from leaks. The system includes a manifold with first and
second electronic valves that is connected to the main water supply
and feeds a connection line which provides water to the structure.
The system includes a requesting member such as a faucet with a
flow sensor attached to the connection line and an activation
member such as a handle with a transmitter posted nearby. When
water is requested, the handle is turned, and the transmitter
communicates with the first electronic valve to allow water to flow
from the main water supply through the manifold and connection
line, where it exits the faucet. However, this system does not
distinguish between an authorized and an unauthorized demand for
water.
[0006] U.S. Pat. Pub. No. 2016/0376773 to Abuhamdeh describes a
method for automatic water leak detection and mitigation of
residential and commercial water supply systems that includes the
use of three electronically controlled valves controlled by a valve
controlled to enable valves to shut off the main water supply, open
a drain path for existing water to escape, and open a venting valve
to facilitate drainage. The three valves are installed to
facilitate drainage by either syphoning the water out of the system
or using gravity to force the water out of the system. However,
this system is only designed to mitigate damage after it has
occurred, and the system does not monitor current conditions to
mitigate leaks or the potential for leaks prior to their
occurrence.
[0007] U.S. Pat. No. 7,114,516 to Ito describes a leak-detecting
check valve that has a function of detecting movement of a valve
element of the leak-detecting check valve when the check valve is
attached to a water supply or other conduit for water and actuating
an alarm when a leak is detected. However, the leak-detecting check
valve does not provide any authorization for water but rather only
monitors the system to prevent leaks in the system.
[0008] It would be desirable to provide a system of valves within
an environment to manage and control the flow of fluid within that
environment. In addition, it would also be desirable to provide a
system that can provide information regarding changes on conditions
within the system to identify leaks/breaks in the system.
SUMMARY OF THE INVENTION
[0009] It is an object of the present invention to control the
supply of fluid in an environment.
[0010] It is another object of the present invention to detect and
identify any leaks in the environment.
[0011] It is another object of the present invention to detect and
identify the specific location of a potential leak/break that may
be developing within the environment.
[0012] It is still another object of the present invention to
provide for the flow of fluid within an environment only upon a
request for fluid from an authorized source.
[0013] In one embodiment, the present invention relates generally
to a system for monitoring and controlling a flow of fluid in an
environment and a method of using the system to control the flow of
fluid in the environment.
[0014] In a preferred embodiment of the invention, the system
comprises:
[0015] a) a main valve positioned at an entry point of the
environment, wherein the main valve permits fluid to be discharged
into the environment upon receipt of an authorizing signal
thereto;
[0016] b) one or more authorizing signaling devices, wherein each
authorizing signaling device (i) is associated with a respective
outlet tap or valve from which fluid can be requested, (ii) is
positioned intermediate the main valve and the respective outlet
with which it is associated, and (iii) has a unique identifier
associated therewith, wherein each authorizing signaling device is
in fluid communication with the main valve;
[0017] c) a controller in communication with each of the
authorizing signaling devices, wherein each of the authorizing
signaling devices can request authorization from the controller to
discharge of fluid to the respective outlet tap or valve with which
it is associated;
[0018] d) a supply network of one or more lines, tubes, and/or
pipes in the environment, wherein the supply network of one or more
lines, tubes and/or pipes permit the flow of fluid through the main
valve through the at least one or more of the authorizing signaling
devices and to each outlet associated with the one or more
authorizing signaling devices;
[0019] wherein the controller receives an authorization request
from the authorizing signaling device, determines whether the
requested authorization from the authorizing device is an
authorized request, and provides the authorizing signal to the main
valve to permit the flow of fluid through the main valve upon a
determination by the controller that the authorization request from
the authorizing signaling device is an authorized request.
[0020] In another preferred embodiment, the system described herein
comprise at least one monitoring signaling device positioned within
the supply network of one or more lines, tubes and/or pipes and
intermediate the main valve and an authorizing signaling device,
wherein the fluid flows through the main valve, the at least one
monitoring signaling device and the authorizing signaling
device;
[0021] wherein the at least one monitoring signaling device has a
unique identifier associated therewith and comprises a sensor for
monitoring a process condition associated therewith, wherein the at
least one monitoring signaling device is in fluid communication
with the main valve, and
[0022] wherein the receipt of a signal from the at least one
monitoring signaling device to the controller provides information
to the controller regarding the process condition being
monitored.
BRIEF DESCRIPTION OF THE FIGURES
[0023] For a fuller understanding of the invention, reference is
made to the following description taken in connection with the
accompanying figures, in which:
[0024] FIG. 1 depicts a diagram of a fluid supply system in
accordance a preferred embodiment of the present invention.
[0025] FIG. 2 depicts a diagram of a fluid supply system in
accordance with another preferred embodiment of the present
invention and including monitoring check valves to isolate source
location of unauthorized fluid requests.
[0026] FIG. 3 depicts a view of a main programmable valve in
accordance with a preferred embodiment of the present
invention.
[0027] FIG. 4 depicts an exploded view of the main programmable
valve of FIG. 3.
[0028] FIG. 5 depicts an exploded view of a check valve in
accordance with a preferred embodiment of the present
invention.
[0029] FIG. 6 depicts a view of a check valve having a pressure
sensor mounted thereon in accordance with a preferred embodiment of
the present invention.
[0030] FIG. 7 depicts another view of the check valve of FIG.
6.
[0031] FIG. 8 depicts an exploded view of a portion of the check
valve of FIG. 6.
[0032] Also, while not all elements may be labeled in each figure,
all elements with the same reference number indicate similar or
identical parts.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0033] The present invention is directed to a system and a method
for controlling the supply of fluid to and within an environment,
which may be for example, residential housing, condominium,
commercial and/or industrial building or any other defined
environment. The invention described herein detects the possibility
of substantially any leak within the environment, whether
accidental or otherwise.
[0034] The present invention also identifies unauthorized fluid
demands which develop within the system and the specific area from
which these unauthorized fluid demands originate within the system.
Thus, using the method and the system described herein, it is
possible to facilitate troubleshooting of potential leaks or other
unauthorized fluid demands within the system to find the source of
the potential leak or other unauthorized fluid demand and repair or
correct as may be needed.
[0035] As used herein, "a," "an," and "the" refer to both singular
and plural referents unless the context clearly dictates
otherwise.
[0036] As used herein, the term "about" refers to a measurable
value such as a parameter, an amount, a temporal duration, and the
like and is meant to include variations of +/-15% or less,
preferably variations of +/-10% or less, more preferably variations
of +1-5% or less, even more preferably variations of +1-1% or less,
and still more preferably variations of +1-0.1% or less of and from
the particularly recited value, in so far as such variations are
appropriate to perform in the invention described herein.
Furthermore, it is also to be understood that the value to which
the modifier "about" refers is itself specifically disclosed
herein.
[0037] As used herein, spatially relative terms, such as "beneath",
"below", "lower", "above", "upper", "front", "back", and the like,
are used for ease of description to describe one element or
feature's relationship to another element(s) or feature(s) as
illustrated in the figures. Spatially relative terms may be
intended to encompass different orientations of the device in use
or operation in addition to the orientation depicted in the
figures. For example, if the device in the figures is turned over,
elements described as "below" or "beneath" other elements or
features would then be oriented "above" the other elements or
features. Thus, the example term "below" can encompass both an
orientation of above and below. The device may be otherwise
oriented (rotated 90 degrees or at other orientations) and the
spatially relative descriptors used herein interpreted accordingly.
It is further understood that the terms "front" and "back" are not
intended to be limiting and are intended to be interchangeable
where appropriate.
[0038] As used herein, the terms "comprises" and/or "comprising,"
specify the presence of stated features, integers, steps,
operations, elements, and/or components, but do not preclude the
presence or addition of one or more other features, integers,
steps, operations, elements, components, and/or groups thereof.
[0039] As used herein, the term "main valve" refers to a valve
positioned at an entry to an environment through which a fluid may
enter the environment.
[0040] As used herein, the term "check valve" or "one-way valve"
refers to a two-port valve that allows a fluid to flow in only one
direction. Check valves may be spring loaded, which substantially
eliminates the effect of gravity on check valve function. Without a
spring, gravity and thus the valve's vertical orientation can
become a critical factor for proper working of the check valve.
[0041] As used herein, the term "environment" refers to a single
family residential dwelling unit, a multi-family residential
dwelling unit, a condominium or townhouse, a municipal building, a
commercial building, or other similar locale in which fluid is
supplied through a plurality of one or more lines, tubes, and/or
pipes to associated outlet valves or taps.
[0042] As used herein, the term "cracking pressure" refers to the
minimum upstream pressure when a normally closed check valve begins
to open, and flow starts.
[0043] As used herein, the term "network" refers to an arrangement
of one or more lines, tubes, and/or pipes within the environment
for transporting a fluid within the environment.
[0044] As used herein, the term "entry point" refers to a point or
location at which a fluid is capable of entering the
environment.
[0045] As used herein, the term "source" refers to a monitored
location within the environment and in which a signaling device
that is capable of sending/receiving a signal from the main valve
is located.
[0046] As used herein, the term "authorized source" refers to an
outlet tap or valve that is monitored by an authorizing signaling
device.
[0047] As used herein, the term "unauthorized source" refers to a
monitored location of a monitoring signaling device.
[0048] As used herein, the term "abnormal use" refers to a use that
is not authorized and that does not result from a request for fluid
from an authorizing signaling device.
[0049] As used herein, the term "fluid" refers to any liquid, gas
or other substance that flows or deforms under an applied shear
stress. Examples of fluid include, but are not limited to water,
wastewater, solvents, natural gas, etc.
[0050] As used herein, the term "authorized fluid request" refers
to a request for fluid from an authorizing signaling device.
[0051] The system of the present invention uses a main valve, which
in one embodiment may be a diaphragm valve, at an entry point of an
environment. This main valve remains in a closed position unless
and until there is an authorized request for fluid to a controller
from an authorized/authorizing sources. The system described herein
is capable of controlling substantially all of the supply of a
fluid into and within an environment and monitoring the environment
to detect and isolate possible leaks within the environment.
[0052] The main valve distributes fluid to a network of supply
lines, tubes, and/or pipes, which in turn are connected to a number
of outlet taps or valves to perform specific services (i.e., sink,
shower, toilet, washer, etc.). These outlet taps or valves receive
their fluid through the network of one or more lines, tubes and/or
pipes and through authorizing signaling devices. Each authorizing
signaling device exhibits a unique identifier and is connected to a
respective outlet tap or valve and to an associated supply
line.
[0053] In addition, optionally, but preferably the system also
comprises monitoring signaling devices, where each monitoring
signaling device also exhibits a unique identifier. In a preferred
embodiment, the unique identifier is a RF signal code. Other unique
identifiers that can be used include, for example, a local area
network that uses radio waves to connect devices to the Internet
(i.e., Wi-Fi) and other similar manners of supplying a unique
identifier within a system.
[0054] The controller is programmed to receive signals and process
signals from the main valve, from the optional monitoring signaling
devices, and from the authorizing signaling devices, to recognize
the unique identifier of each optional monitoring signaling device
and each authorizing signaling device check valve and determine if
the signal is an authorized signal or an unauthorized signal. Upon
a determination that a signal is an authorized signal, the
controller will provide an authorizing signal to the main valve to
permit the flow of fluid through the main valve upon a
determination by the controller that the authorization request from
the authorizing signaling device is an authorized request. If the
signal is unauthorized, the main valve will remain closed and the
controller will issue a warning signal, which may be sent to a
control panel or other pre-determined entity. This warning signal
is an alert that something in the supply system is requesting fluid
outside the registered authorizing signaling devices, indicating a
potential development of a leak or break within the
environment.
[0055] In one preferred embodiment, the present invention relates
generally to a system for monitoring and controlling a flow of
fluid in an environment, the system comprising:
[0056] a) a main valve positioned at an entry point of the
environment, wherein the main valve permits fluid to be discharged
into the environment upon receipt of an authorizing signal
thereto;
[0057] b) one or more authorizing signaling devices, wherein each
authorizing signaling device (i) is associated with a respective
outlet tap or valve from which fluid can be requested, (ii) is
positioned intermediate the main valve and the respective outlet
with which it is associated, and (iii) has a unique identifier
associated therewith, wherein each authorizing signaling device is
in fluid communication with the main valve;
[0058] c) a controller in communication with each of the
authorizing signaling devices, wherein each of the authorizing
signaling devices can request authorization from the controller to
discharge of fluid to the respective outlet tap or valve with which
it is associated;
[0059] d) a supply network of one or more lines, tubes, and/or
pipes in the environment, wherein the supply network of one or more
lines, tubes and/or pipes permit the flow of fluid through the main
valve through the at least one or more of the authorizing signaling
devices and to each outlet associated with the one or more
authorizing signaling devices;
[0060] wherein the controller receives an authorization request
from the authorizing signaling device, determines whether the
requested authorization from the authorizing device is an
authorized request, and provides the authorizing signal to the main
valve to permit the flow of fluid through the main valve upon a
determination by the controller that the authorization request from
the authorizing signaling device is an authorized request.
[0061] In another preferred embodiment, the system described herein
comprises at least one monitoring signaling device positioned
within the supply network of one or more lines, tubes and/or pipes
and intermediate the main valve and an authorizing signaling
device, wherein the fluid flows through the main valve, the at
least one monitoring signaling device and the authorizing signaling
device;
[0062] wherein the at least one monitoring signaling device has a
unique identifier associated therewith and comprises a sensor for
monitoring a process condition associated therewith, wherein the at
least one monitoring signaling device is in fluid communication
with the main valve, and
[0063] wherein the receipt of a signal from the at least one
monitoring signaling device to the controller provides information
to the controller regarding the process condition being
monitored.
[0064] In one embodiment, the main valve is a diaphragm valve and
has associated therewith a controller that is programmed to
evaluate fluid use in the environment and to distinguish between an
authorized fluid request, in which the main valve is opened to
allow fluid into the environment, and an unauthorized request, in
which the main valve does not open, and fluid is not allowed into
the environment. While the inventors of the present invention have
determined that a diaphragm valve is suitable for use as the main
valve, other valves that are capable of being programmed to monitor
specific data, compute specific data and to take specific action
with respect to the monitoring signaling devices and the
authorizing signaling devices would also be usable in the present
invention. The controller may be programmed and controlled locally
or remotely, depending on the needs of the user. In one preferred
embodiment, the controller and the main valve are integrated into a
programmable main valve assembly. In another preferred embodiment,
the controller and the main valve may be physically separate
assemblies. In another preferred embodiment, the controller is
located remotely from the main valve.
[0065] As described herein, the supply network optionally contains
monitoring signaling devices and contains one or more authorizing
signaling devices. Preferably, the system contains at least one
monitoring signaling device and one or more authorizing signaling
devices.
[0066] The monitoring signaling devices are installed at selected
points within the supply network. In one embodiment, the monitoring
signaling devices may be installed at the start of a specific
section of the supply line, such as a service specific area within
a defined environment (i.e., laboratory, washroom, kitchen, etc.)
or in a multi-unit or multi-use dwelling may be installed on
specific sections of the supply network going to each independent
unit or use. Furthermore, in a large supply network, it may be
desirable to have monitoring signaling devices positioned at
various junctions in the supply network to more closely monitor
potential issues within the system. A combination of more
environments in a larger system is also contemplated by the present
invention.
[0067] The authorizing signaling devices are each associated with a
respective outlet tap or valve and are installed adjacent to the
respective outlet tap or valve. Thus, when a respective authorizing
outlet tap or valve makes a request for fluid, the respective
authorizing signaling device communicates with the controller to
authorize discharge of fluid to the respective outlet tap or
valve.
[0068] In one preferred embodiment, one or more of the monitoring
signaling devices and/or one or more of the authorizing signaling
devices may comprise check valves. However, the signaling devices
are not limited to check valves and thus the signaling device may
be any device that is capable of providing a unique identifier to
the controller. Thus, the signaling device may comprise a flow
sensor, an RF switch, a linked "smart" device (i.e., a smart
faucet, washer, other appliance, etc.), or any other device that
contains a unique identifier that can communicate with the
programmable main valve. Combinations of the one or more types of
signaling devices, including one or more check valves in
combination with one or more other types of signaling devices may
also be used.
[0069] FIG. 1 depicts a diagram of a fluid supply system in
accordance with one aspect of the present invention. It is noted
that the Figures describe the use of monitoring check valves and
authorizing check valves. However, as set forth herein other
signaling devices may be used in place of some or all of the check
valves. Thus, the description of the system of the invention as set
forth in FIGS. 1 and 2 should be understood to depict check valves
as one example of a monitoring signaling device or authorizing
signaling device as further set forth herein.
[0070] The preferred fluid supply system 10 described in FIG. 1
comprises main valve 20 having an inlet pressure sensor 22 and an
outlet pressure sensor 24. The main valve 20 is operatively
connected to a controller 26 that is capable of processing signals
from each authorizing check valve 32. The supply network comprises
main pipe 40 and distribution line pipes 42 and 44. The supply
network shown in FIG. 1 is only an example of a supply network.
Other configurations of one or more main pipes and one or more
distribution lines are also contemplated by the present invention.
What is important is the presence of at least the controller 26,
the main valve 20 and the authorizing check valves 32. It should be
understood that controller 26 can be in a single housing and/or
distributed about one or more units so that one or more assemblies
and/or functionalities therein can comprising controller 26.
[0071] FIG. 2 depicts a view of a different fluid supply system 15
that also includes monitoring check valves 30. As shown in FIG. 2,
in this embodiment, the fluid supply system 15 is also able to
monitor unauthorized fluid requests. The monitoring check valves
are positioned on the main pipe 40 and on one or more distribution
lines. As described in FIG. 1, the programmable main valve 20 is
operatively connected to a controller 26 that is capable of
processing signals from each monitoring check valve 30 and each
authorizing check valve 32.
[0072] The main valve 20 only opens upon a request of an authorized
request for fluid to the controller 26 from one or more of the
authorizing check valves 32. That is, the controller 26 receives
information from the monitoring check valves 30 and the authorizing
check valves 32, but only the authorizing check valves are
programmed to request fluid from the controller 26.
[0073] A preferred programmable main valve 20 is shown in FIGS. 3
and 4. Main body valve 50 comprises an inlet 52 and an outlet 54.
Mounted on main body valve 50 is an inlet pressure sensor 56 and an
outlet pressure sensor 58. The preferred main valve 20 shown in the
figures is a diaphragm valve and further comprises a diaphragm 60
mounted on an upper port of the main body valve 50 that is held in
place by a valve cover 62. Also included therein is a piston 64
disposed under the valve cover 62 that mates with an opening in the
diaphragm 60 that is capable of being biased by spring 66 or other
biasing means. In one embodiment, the controller 26 comprises an
electro valve 70 is disposed in the valve cover 62 that is
operatively connected with an RF device 72 that is capable of
communicating with sensors operatively connected to monitoring
check valves 30 and authorizing check valves 32. Wires 74 connect
inlet pressure sensor 56 and outlet pressure sensor 58 with the
controller 26.
[0074] Each of the authorized check valves and the monitoring check
valves is registered to the system so that the controller 26 can
preferably, but not necessarily, communicate with each of the
authorized check valves 32 and the monitoring check valves 30.
[0075] Thus, in one embodiment, a user may program the controller
26 to recognize main valve 20, to recognize each monitoring check
valve 30, and to recognize each authorizing check valve 32. The
controller 26 may be preprogrammed with suitable values for
pressure drop as well as cracking pressure of each monitoring check
valve and each authorizing check valve as well as other suitable
process conditions. However, it is also contemplated that a user
may input their own information regarding process conditions based
on their own particular needs.
[0076] The controller 26 also has the capability of being
programmable to monitor specific data, compute specific data and
take certain actions with regards to fluid flow within the system.
This information may also be programmed by the user and will depend
on the particular needs of the user.
[0077] For example, the outlets or taps may only be authorized for
fluid flow at certain times (i.e., certain times of the day,
certain days of the week, etc.). Thus, a request to the controller
26 for fluid by an authorizing check valve 32 at an unauthorized
time will not result in a fluid release from the main valve 20. As
another example, an authorizing signaling device may be associated
with a kitchen sink or other similar device where it may be
desirable to authorize flow of fluid for an authorized period of
time, i.e., for a kitchen sink an authorized period of time may be
10 minutes or 15 minutes or 20 minutes, which would allow a user to
turn water on/off multiple times during the authorized period while
washing dishes. Thus, in this instance the controller 26 is
programmed not only to recognize actual request for fluid from the
authorizing signaling device but also to release fluid to the
outlet or tap requesting the fluid through the authorizing
signaling device for the authorized period. Another example of this
is in a system where water conservation is desired. Thus, the
system may desire to limit certain the duration of certain
activities (i.e., showering or bathing) to conserve water and the
authorized period may be set to a desired maximum time period for
the activity.
[0078] It is also noted that the present invention does not act to
prevent leak within the environment but monitors the system for
changes in pressure at the monitoring check valves 30 and the
authorizing check valves 32 to identify any leaks that may develop
in the system, so they may be mitigated.
[0079] In one preferred embodiment, one or more of the monitoring
signaling devices or one or more of the authorizing signaling
devices may comprise a check valve. If used, these check valves may
comprise spring loaded check valves as shown in FIG. 5. Spring
loaded check valves are powered by flow and differential pressure
with assistance from the spring pressure. The check valve seat
divides the valve into upstream (inlet) and downstream (outlet)
sides. A stopper or plunger rests inside the valve and can move so
that one of its surfaces can rest against the valve seat. The
position of the spring applies a constant pressure to hold the
stopper or plunger in place against the valve seat, sealing the
surfaces together. Fluid flow in the correct direction and at the
right pressure overcomes the force of the spring and pushes the
sealing surface of a stopper or plunger away from the seat,
allowing flow to take place. When the upstream pressure drops low
enough, the spring pushes the sealing surface of the stopper back
against the sealing surface of the valve seat, closing the valve
and preventing reverse flow.
[0080] As shown in FIG. 5, a spring valve that may be used as a
monitoring signaling device or an authorizing signaling device may
comprise a main body 80 having an inlet side 82 and an outlet side
84 for the flow of a fluid therethrough. A radio frequency device
86 having a unique signal code that can communicate with the
controller 26 is operatively connected to the main body 80.
Disposed within the main body 80 is an insulation ring 90 and a
contact ring 92. The insulation ring 90 fits within a portion of
the main body 80 and has a hole 94 in a surface thereof that is
capable of mating with a corresponding hole 96 in the contact ring
92 that is disposed within the insulation ring 90. A connectivity
pin 100 is positioned within pin insulator 102 and is threaded
through a hole 104 in the main body 80 and then into the hole 94 in
the insulation ring 90 and the hole 96 in the contact ring 92. The
connectivity pin 100 extends beyond the length of the pin insulator
102 to make contact with the hole 96 in the contact ring 92. The
connectivity pin 100 and the contact ring 92 are both composed of a
conductive metal such as steel, while the pin insulator 102 and the
insulation ring 90 are both composed of a non-conductive
plastic.
[0081] A stopper 110 is disposed within the main body 80 and makes
contact with the contact ring 92 to create a ground with the main
body 80 and complete the circuit. The stopper 110 may be selected
from the group consisting of a ball, a disc, a piston, or a poppet.
In one embodiment, the stopper 110 is a ball. A spring or other
biasing member 112 holds the stopper 110 in place and is in turn
held in place by a retainer 114.
[0082] The stopper 110 is a movable element that moves in and out
of electrical contact with the contact ring 92 in the main body 80.
The stopper 110 must detach completely from the contact ring 92 to
break contact. In other words, the check valve cannot be partially
open/closed. The cracking pressure of the check valve is preferably
within the range of less than about 2 psi, more preferably within
the range of less than about 1 psi.
[0083] Sensors 122 (shown in FIGS. 6-8) may be connected to each
monitoring check valve and to each authorizing check valve and
monitor pressure (and/or other process conditions) within the
environment. Thus, in one embodiment, the sensors monitor the
pressure within the environment by monitoring the change in
pressure across each of the monitoring check valves 30 and the
authorizing check valves 32 so that the value of the pressure drop
stays within a certain range. If the pressure drop is not within
the prescribed range, a signal is sent to the main valve 20. While
sensor 122 most preferably monitors pressure, in some embodiments,
it may be preferable to monitor other process conditions instead of
or in addition to pressure. For example, in some embodiments, it
may also be desirable to monitor temperature, flow rate, fluid
density, concentration of a contaminant, etc. depending on the
complexity of the environment and the fluid being monitored.
[0084] FIGS. 6 and 7 depict a view of any one or more authorizing
check valve 32 or any one or more monitoring check valve 30 that is
joined with an auxiliary body 120 on an inlet side 82 of main body
80. The auxiliary body 120 comprises a sensor 122 for monitoring
pressure. Radio frequency device 86 can communicate information
regarding pressure drop to the programmable main valve 20. FIG. 8
is an exploded view of auxiliary body 120 comprising pressure
sensor 122.
[0085] As described herein, each monitoring check valve and each
authorizing check valve 32 generates a signal when it is closed and
when it is open. The signal of "open" or "closed" is then processed
by the controller 26 to determine the condition at the
valve/signaling device that is sending the signal and/or in the
case of an authorizing check valve, in particular, if the request
is authorized.
[0086] The present invention is also directed to a method of
controlling a flow of fluid into and within an environment.
[0087] In one preferred embodiment, the present invention relates
generally to a method of controlling a flow of fluid in an
environment, wherein the environment comprises a main valve
positioned at an entry point, wherein the main valve permits fluid
to be discharged into the environment upon receipt of an
authorizing signal thereto, one or more authorizing signaling
devices, wherein each authorizing signaling device (i) is
associated with a respective outlet tap or valve from which fluid
can be requested, (ii) is positioned intermediate the main valve
and the respective outlet with which it is associated, and (iii)
has a unique identifier associated therewith, wherein each
authorizing signaling device is in fluid communication with the
main valve, and a supply network of one or more lines, tubes and/or
pipes, wherein the supply network of lines, tubes and/pipes permits
the flow of fluid through the main valve, through the one or more
authorizing signaling devices, and to each respective outlet
associated with the one or more authorizing signaling devices,
wherein each of the authorizing signaling devices and the main
valve is in communication with a controller; the method comprising
the steps of:
[0088] i) registering a unique identifier of the main valve with
the controller;
[0089] ii) registering the unique identifier of each authorizing
signaling device with the controller; and
[0090] iii) programming the controller to receive signals from the
main valve and the authorizing signaling devices,
[0091] wherein the authorizing signaling device can authorize
discharge of fluid to their respective outlet/tap valve upon
initiation of a request from the authorizing check valve to the
controller; and
[0092] wherein the controller processes signals from each
authorizing signaling device to control the flow of fluid within
the environment.
[0093] In another preferred embodiment, the environment comprises
one or more monitoring signaling devices positioned within the
supply network of one or more lines, tubes and/or pipes and
intermediate the main valve and an authorizing signaling device,
wherein the fluid flows through the main valve, the one or more
monitoring signaling devices and the authorizing signaling device;
wherein the one or more monitoring signaling devices has a unique
identifier associated therewith and comprises a sensor for
monitoring a process condition associated therewith, wherein the
one or more monitoring signaling devices is in fluid communication
with the main valve, and wherein the receipt of a signal from the
one or more monitoring signaling devices to the controller provides
information to the controller regarding the process condition being
monitored, the method further comprising the step of:
[0094] registering the unique signal code of the one or more
monitoring signaling devices with the controller; and
[0095] programming the controller to receive signals from the one
or more monitoring signaling devices,
[0096] wherein the one or more monitoring signaling devices cannot
authorize a request for fluid from the controller.
[0097] In the present invention, the objectives as set forth herein
are achieved because there will be no leaks of any consequence
because the supply of fluid is always closed. The main valve only
opens to allow fluid into the environment when there is an
authorized request. Thus, fluid is not supplied if there is a
"leak" request and the invention identifies any leak of consequence
within the defined environment, accidental or otherwise.
[0098] The present invention also identifies unauthorized fluid
demands that develop within the system and the specific area from
which these demands originate within the environment. This will
greatly facilitate the ability to troubleshoot the environment to
locate the source of the unauthorized demand and allow for repair
correction of such leak as may be needed.
[0099] Flow of water or other fluid into the environment through
the main valve towards the monitoring signaling devices and the
authorizing signaling devices only occurs when an authorized
request for fluid is made by one or more of the authorizing
signaling devices.
[0100] Finally, it should also be understood that the following
claims are intended to cover all of the generic and specific
features of the invention described herein and all statements of
the scope of the invention that as a matter of language might fall
there between.
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