The present invention is in the field of fluid management, flow rate measurement, and leak detection, including but not limited to fluids consisting of or comprising water.
The subject matter discussed in the background section should not be assumed to be prior art merely as a result of its mention in the background section. Similarly, a problem mentioned in the background section or associated with the subject matter of the background section should not be assumed to have been previously recognized in the prior art. The subject matter in the background section merely represents different approaches, which in and of themselves may also be inventions.
The management and control of fluids through channels of distribution networks, to include plumbing systems of buildings, is a need found ubiquitously among many domestic, commercial, industrial and civil installations. In addition, the detection of both fluid flow within plumbing systems and leaks therefrom is vital to most effectively managing the use, conservation, and cost of provision and delivery of many natural and chemical resources, including and not limited to water, beverages, petrochemicals and other natural and synthetic fluids.
Of particular note, the scope of the method of the present invention includes the fields of water management and leak detection. With ever increasing populations and limited water resources, water conservation has become a major issue. The State of California's current Governor Jerry Brown recently announced his state's first-ever mandatory water restrictions in an effort to cope with four years of the worst drought in the state's history. These restrictions, under which cities and towns in the state were told to cut water use by 25 percent, could be the first step in what many researchers and analysts say is a fundamental change in the way California uses it's diminishing water supplies. Recently, National Geographic and other media outlets have reported extensively on the drought in California and on emerging water scarcity across the western United States, and have shown how a warming climate and the lack of snow in the Cascades and Sierra Nev. Mountain ranges have dramatically reduced snowmelt, a crucial provider of water to California and the agricultural belt in its Central Valley. Calif., for the first time, passed legislation regulating groundwater use. Some of these restrictions have already taken effect, and more will be implemented in the coming years at both the state and local levels.
California has faced major droughts before, such as in the late 1970s. However, fewer than 20 million people lived in the state then, whereas nearly 40 million live in the state now. While Californians have drastically improved the efficiency of their water use in recent years, more must be done to bring the usage to sustainable levels. If rain and snow do not arrive in normal amounts, the supply of groundwater, much of which is nonrenewable, will continue to decline as it is used to make up for surface shortages.
Most homes do not have an easy and reliable way to measure water consumption. Typically, a homeowner will learn of his or her total consumption only when the amount is reported on a monthly water bill. Homeowners that are particularly dedicated to conservation can check their municipal water meters more frequently, but this is a manual process resulting in low-resolution data, and therefore does a poor job of showing how water usage changes based on activity throughout the day. Because homeowners typically do not have access to real-time water use data, they cannot easily know if and when appliances or faucets use disproportionate amounts of water. Additionally, long-running leaks tend to go unnoticed, resulting in large water bills and damage to structures. Real-time water meters, such as the present invention, can be a boon to residential water conservation by identifying leaks and other wasteful uses of water. This can save homeowners money off of their water bills, and it can prevent many thousands of dollars of damages from leaks. There are several consumer water meters currently either in the market or in development, but they all have critical flaws which the present invention lacks. The first type of meter is one that is installed directly inline near the primary water main, and uses either a positive displacement or multi-jet mechanism which will spin in proportion to the water's flow rate. These meters use proven and reliable technology, but they can only be installed by removing a section of pipe and are thus not suitable for installation without a professional plumber. Other schemes involve placing meters nearer the individual outlets in a home. These are more easily installed, but they quickly become expensive as the number of outlets increases, they can be difficult to maintain, and they cannot detect leaks that happen between the water main and the water outlets. Other meters can measure water flow without cutting a pipe via ultrasonic transit time analysis or acoustic analysis of the flow itself, but these tend to be very expensive, difficult to calibrate, or both. In contrast, the present invention is designed to be simple to install, to require little calibration, and to be affordable for homeowners.
Yet the prior art fails to optimally provide methods and systems to detect and/measure fluid flow and optionally provide leak detection.
There is therefore a long-felt need for methods and devices for detecting and/or measuring fluid flow, including but not limited to water flow, within channels of plumbing systems, and that preferably can be easily or manually installed into prior art plumbing systems.
Towards these and other objects of the method of the present invention (hereinafter, “the invented method”) that are made obvious to one of ordinary skill in the art in light of the present disclosure, the present invention provides a system (hereinafter, “the invented system”) for monitoring and optionally affecting fluid flow within an element of a plumbing structure, and a method of use thereof. The method of the present invention (hereinafter, “the invented method”) enables monitoring and optionally means to affect water flow within an element of a plumbing structure.
A first preferred embodiment of the invented method provides an apparatus for measuring water usage in a residence, commercial property, or other building structure having a plumbing system that includes an accessible hose bib or other suitable valve located near the input to a water supply of selected plumbing system.
A first preferred embodiment of the invented system can be manually installed by a tap and screw fitting onto the hose bib. The invented system optionally employs a tethered drag block which is inserted into a plumbing system pipe. When water is flowing into and through the plumbing system, the water flow exerts a drag force on the drag block which will be transmitted from the drag block via the tether to a sensor module, where the water flow force can be converted to a digital or analog electrical signal. A stronger detected drag force indicates faster flowing water, and, with proper calibration, can be converted by the sensor module, a control module, or a remote wirelessly communicatively-coupled computational module into a measurement of the rate of water flow through the pipe.
An alternate preferred embodiment of the invented method provides a device optionally comprising one or more of the elements of (a.) a tensile force detector adapted to detect tensile force and emit an electrical signal upon tensile force detection; (b.) a drag block coupled with the tensile force detector, the drag block sized and shaped for insertion into a fluid piping while maintaining a clearance radius from an internal wall of the fluid piping; (c.) a strain sensor coupled with the drag block, the strain sensor emitting the electrical signal upon detection of tensile force; (d.) a signal pathway coupled with the strain sensor and providing a pathway of the electrical signal toward an exterior of the device; (e.) wireless communications means to transmit data from and optionally receive commands from an external wireless communications device; and (f.) means to deploy, and/or deform the drag block while the drag block is inserted into a plumbing system.
Still alternate preferred embodiments of the invented system comprise one or more of (a.) block sized and shaped for insertion into a fluid piping while maintaining a clearance radius from an internal wall of the fluid piping; (b.) a strain sensor coupled with the drag block, the strain sensor emitting an electrical signal derived from a magnitude of tensile force received from the drag block; (c.) a tether disposed between the drag block and the strain sensor, the tether coupled at a first tether end with the strain sensor and at a second tether end to the drag block, and the tether transferring the magnitude of tensile force from the drag block and to the strain sensor; (d.) a strain to flow converter, the strain to flow converter communicatively coupled with the strain sensor and deriving a measurement datum from the electrical signal received from the strain sensor; and/or (e.) a controller, the controller communicatively coupled with both the drag block and the strain to flow converter, and the controller adapted to a provide control signals to affect the drag block.
This Summary is provided to introduce a selection of concepts in a simplified form that are further described below in the Detailed Description. This Summary is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used to limit the scope of the claimed subject matter.
The detailed description of some embodiments of the invention is made below with reference to the accompanying figures, wherein like numerals represent corresponding parts of the figures.
In the following detailed description of the invention, numerous details, examples, and embodiments of the invention are described. However, it will be clear and apparent to one skilled in the art that the invention is not limited to the embodiments set forth and that the invention can be adapted for any of several applications.
It is to be understood that this invention is not limited to particular aspects of the present invention described, as such may, of course, vary. It is also to be understood that the terminology used herein is for the purpose of describing particular aspects only, and is not intended to be limiting, since the scope of the present invention will be limited only by the appended claims. Methods recited herein may be carried out in any order of the recited events which is logically possible, as well as the recited order of events.
Where a range of values is provided herein, it is understood that each intervening value, to the tenth of the unit of the lower limit unless the context clearly dictates otherwise, between the upper and lower limit of that range and any other stated or intervening value in that stated range, is encompassed within the invention. The upper and lower limits of these smaller ranges may independently be included in the smaller ranges and are also encompassed within the invention, subject to any specifically excluded limit in the stated range. Where the stated range includes one or both of the limits ranges excluding either or both of those included limits are also included in the invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Although any methods and materials similar or equivalent to those described herein can also be used in the practice or testing of the present invention, the methods and materials are now described.
It must be noted that as used herein and in the appended claims, the singular forms “a”, “an”, and “the” include plural referents unless the context clearly dictates otherwise. It is further noted that the claims may be drafted to exclude any optional element. As such, this statement is intended to serve as antecedent basis for use of such exclusive terminology as “solely,” “only” and the like in connection with the recitation of claim elements, or use of a “negative” limitation.
A first preferred embodiment of the present invention 100 (hereinafter, “the first system” 100 is a tethered drag flow meter, the function of which is to measure water flow in a residential household or any other plumbing system which has an accessible hose bib 104. The first system 100 is designed to be easily installed and fitted to the hose bib 104, with minimal expertise or tool use. The principle components of the first system 100 described here are the attachment mechanism, a meter housing 101, a sheathed tether 102, a drag block 103 coupled with the sheathed tether 102, a strain sensor 304, and a calibration unit. It is understood that the tether and the drag block generate fluid drag when installed in a plumbing channel (not shown). Further optional components of the first system 100 not detailed here will typically be required to make use of the data provided by the sensor, such as, for example, data storage mechanisms, data processing, digital or analog displays, and wireless transmission of the flow rate data. The hose bib 104 preferably complies with the American Society of Mechanical Engineers hose bib structure and design standards as expressed in the ASME document number A112.18.1/CSA B125.1 and titled “Plumbing Supply Fittings”, the ASME document number A112.19.1/CSA B45.2 and titled “Enameled Cast Iron and Enameled Steel Plumbing Fixtures”, and/or the ASME document number A112.19.2/CSA B45.1 titled, “Ceramic Plumbing Fixtures”.
Referring now generally to the Figures and particularly to
In order to install the first system 100, in one embodiment, the water supply must be shut off in the upstream pipe 107 and water must be drained out of the downstream pipe 106. Then, the hose valve 108 can be opened and the drag block 103 and sheathed tether 102 can be inserted through the hose bib 104 and into the downstream pipe 106. Once the meter housing 101 has been securely attached onto the hose bib 104, the water supply can be turned back on. In certain alternate preferred embodiments of the first system 100, no tools are necessary to install the first system 100. However, depending on the selected plumbing system's water pressure and the quality of the hose bib, plumbing tape or other sealants may be required to prevent drips from forming around the meter housing attachment point.
Referring now generally to the Figures and particularly to
An alternate second flexible sheath 203 extends out of the meter housing from the center of the attachment point. The second sheath 203 must be flexible enough to accommodate bends in the plumbing system—especially those in the hose bib 104—but sturdy enough such that the second sheath 203 can be manually pushed without collapsing. The second sheath 203 contains an alternate second tether 204 which connects an alternate second drag block 205 to the second meter housing 201. The second sheath 203 functions to eliminate friction between the second tether 204 and the surrounding pipe, to ease installation by enabling the second drag block 205 to be manually pushed up the pipe, and to protect the second tether 204 from being pinched by a user accidentally closing the hose valve 108 when the second tether 204 is already in place in a channel of a plumbing system.
Referring now generally to the Figures and particularly to
The strain-to-flow converter 305 can either be or comprise an individual component and/or be coupled with other electronics and signal processors (not shown) that could. for example, store, display, or wirelessly transmit the flow rate data. These additional optional electronics of yet additional alternate preferred embodiments of the first system 100 will require a power source, also not shown.
Referring now generally to the Figures and particularly to
Referring now generally to Figures and particularly to
A power and communications bus 506 communicatively couples the signal pathway 504, a controller 508, a wireless communications transceiver 510, and the strain sensor 502. In addition, the power and communications bus 506 further accepts electrical energy from a battery 512 and transfers the received electrical energy to the controller 508, the wireless communications transceiver 510, the strain sensor 502 and the strain-to-flow converter 305. The controller 508 may be or comprise a suitable programmable electronic controller, microcontroller, processor and/or microprocessor known in the art, such as but not limited to an MST (™) microcontroller as marketed by Texas Instruments, Inc. of Dallas, Tex. The wireless energy mode is preferably adapted to perform in accordance with one or more wireless communications standards selected from the standard group consisting of a cellular telephone SMS standard, a WiFi standard, and a Bluetooth standard. The second housing 201 is adapted to seal and maintain the controller 508, the wireless communications transceiver 510, the strain sensor 502, and the battery 512 in a dry condition.
Referring now generally to the Figures and particularly to
Referring now generally to the Figures and particularly to
Referring now generally to the Figures and particularly to
Referring now generally to the Figures and particularly to
Referring now generally to the Figures and particularly to
The first bar 916 is rotatably and separately attached to each of two connectors 918A & 918B. A first connector 918A is additionally rotatably coupled with a first intermediate link 920A, The second intermediate link 920B is additionally rotatably coupled with a third connecter 922A of a first wing plate 924A. Force sourced from the spring 908 and applied to the first wing plate 924A and delivered via the linkage assembly 912 chives the first wing plate 924A into to alignment into the deployed state as presented in
A second connector 918B is additionally rotatably coupled with a second intermediate link 920B. The first intermediate link 920B is additionally rotatably coupled with a fourth connecter 922B of a second wing plate 924B. Force sourced from the spring 908 and applied to the second wing plate 924B and delivered via the linkage assembly 912 drives the second wing plate 924B into to alignment into the deployed state as presented in
It is understood that the pathway of force sourced from the spring 908 when deployable drag block 906 is in the insertion position of
Referring now generally to the Figures and particularly to
Referring now generally to the Figures and particularly to
Referring now generally to the Figures and particularly to
Referring now generally to the Figures and particularly to
Referring now generally to the Figures and particularly to
Referring now generally to the Figures and particularly to
The controller 508 proceeds from step 1302 or 1304 to step 1306 and counts down a first time delay value T1 by application of a real time clock (not shown) of the controller 508. After the controller 508 has determined in step 1306 that the first time delay value T1 has achieved a completion value, the controller 508 proceeds from step 1306 to step 1308 and to determine whether to cease maintaining the coil 1202 in an energized state or to continue maintaining the coil 1202 in an energized state. When the controller 508 determines in step 1308 to continue maintaining the coil 1202 in an energized state, the controller 508 proceeds back to an additional execution of step 1306. In the alternative, when the controller 508 determines in step 1308 to cease maintaining the coil 1202 in an energized state, the controller 508 proceeds on from step 1308 to step 1310. In step 1310 the controller 508 directs the communications bus 506 to cease energizing the coil 1200 and to thereby cause the arm 904 to stop applying compressive force toward the drag block spring 908. The third system 900 proceeds from step 1310 to step 1312 to determine whether to execute another loop of steps 1302 to step 1310 or to proceed on to alternate computational operations of step 1314.
Referring now generally to the Figures and particularly to
Referring now generally to the Figures and particularly to
Referring now generally to the Figures and particularly to
In the alternative, when the controller 508 determines in step 1502 that a strain signal measurement value has not been received from the strain to flow converter 305 via the communications bus 506, the controller 508 proceeds on from step 1502 to step 1508. The second system 500 proceeds from step 1508 to step 1510 to determine whether to execute another loop of steps 1502 to step 1510 or to proceed on to alternate computational operations of step 1512.
In understanding the scope of the present invention, the term “comprising” and its derivatives, as used herein, are intended to be open ended terms that specify the presence of the stated features, elements, components, groups, integers, and/or steps, but do not exclude the presence of other unstated features, elements, components, groups, integers and/or steps. The foregoing also applies to words having similar meanings such as the terms, “including”, “having” and their derivatives. Also, the terms “part,” “section,” “portion,” “member” or “element” when used in the singular can have the dual meaning of a single part or a plurality of parts. Finally, terms of degree such as “substantially”, “about” and “approximately” as used herein mean a reasonable amount of deviation of the modified term such that the end result is not significantly changed.
While selected embodiments have been chosen to illustrate the invented system, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made herein without departing from the scope of the invention as defined in the appended claims. For example, the size, shape, location or orientation of the various components can be changed as needed and/or desired. Components that are shown directly connected or contacting each other can have intermediate structures disposed between them. The functions of one element can be performed by two, and vice versa. The structures and functions of one embodiment can be adopted in another embodiment, it is not necessary for all advantages to be present in a particular embodiment at the same time. Every feature which is unique from the prior art, alone or in combination with other features, also should be considered a separate description of further inventions by the applicant, including the structural and/or functional concepts embodied by such feature(s). Thus, the foregoing descriptions of the embodiments according to the present invention are provided for illustration only, and not for the purpose of limiting the invention as defined by the appended claims and their equivalents.
The present Nonprovisional Patent Application is a Continuation-in-Part Nonprovisional Patent Application to, and claims the priority date of, U.S. Provisional Patent Application Ser. No. 62/429,828 filed on Dec. 4, 2016 and titled WATER METER WITH TETHERED DRAG BLOCK ATTACHED VIA HOSE BIB. This U.S. Provisional Patent Application Ser. No. 62/429,828 is hereby incorporated by reference in its entirety and for all purposes into the present Nonprovisional Patent Application.
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