1. Field of the Invention
The present invention relates generally to a continuous flow bypass manifold, and more specifically, to a device that allows adding and removing flow-through components into a fluid circuit without interrupting the fluid circuit's fluid flow.
2. Background
It is sometimes necessary to add or remove a flow-through component or components in series with a fluidic system. However, it may be undesirable that the flow-through component or components remain as a fixed part of the fluidic system. Many such flow-through series components are unable to endure the normal operating environment of the fluidic system for an extended period of time, and therefore, it is necessary to remove such components from the fluidic system following their use. Examples of such flow-through series components include particle counters, temperature gages, pressure gages, fluid filters, and flow meters, among other components.
In the past, the installation or removal of a flow-through series component from a fluidic system would require a disruption of the flow of the fluidic system for a period of time so that the fluidic system could be disassembled, the component could be installed or removed, and the fluid system could be reassembled. Also, the fluidic system may be required to be drained, fluid from the system could be lost, and contaminants could gain ingress into the system.
Thus, it would be advantageous to be able to add or remove flow-through series components in a fluidic system.
It would further be advantageous to be able to add or remove flow-through series components in a fluidic system without disassembling and/or reassembling the fluidic system.
Additionally, it would be advantageous to be able to add or remove flow-through series components in a fluid circuit without disrupting or being forced to discontinue the fluid flow through the fluidic system for a period of time.
It would further be advantageous to be able to add or remove flow-through series components in a fluidic system without the loss of any fluid from the system.
It would also be advantageous to be able to add or remove flow-through series components in a fluidic system by a controlled method that would prevent the ingress of any contaminants into the fluid.
It would also be advantageous to be able to install flow-through series components in a fluidic system in such a way as to prevent removal of the flow-through series components without returning the flow path to normal state.
A device capable of achieving these advantages must also be of a construction which is both durable and long lasting, and which would also require little or no maintenance to be provided by the user throughout its operating lifetime. In order to enhance the market appeal of such a device, it should also be of relatively inexpensive construction to thereby afford it the broadest possible market. Finally, it is also an objective that all of the aforesaid advantages and objectives of such a device be achieved without incurring any substantial relative disadvantage.
The present invention provides a continuous flow bypass manifold that may be coupled in series with a fluidic system containing a fluid flowing therethrough. The continuous flow bypass manifold includes two portions, a fixed portion and an attachment portion. The fixed portion includes a valve housing defining a flow path between an inlet port and an outlet port, with a bypass valve being located intermediate the inlet port and the outlet port. The fixed portion also includes a bypass outlet tube proximate the inlet port and in fluid communication therewith, and a bypass inlet tube proximate the outlet port and in fluid communication therewith. When the bypass valve is in an open configuration, the fluid passes in from the inlet port, through the bypass valve, and out through the outlet port. Coupled to the bypass outlet tube at a distal end thereof is a first mating connector. Coupled to the bypass inlet tube at a distal end thereof is a second mating connector. These mating connectors have self-closing valves that are in a normally closed configuration when the mating connectors do not have other mating connectors connected thereto to prevent fluid from flowing out of the distal ends of the mating connectors.
The continuous flow bypass manifold also includes an attachment portion including a first attachment tube and a second attachment tube coupled to and spaced apart from the first attachment tube. The attachment portion also includes at least one flow-through series component coupled to the first and second attachment tubes at proximal ends thereof. The first and second attachment tubes are in fluid communication with each other through the flow-through series component. Coupled to the first attachment tube at a distal end thereof, is a third mating connector. Coupled to the second attachment tube at a distal end thereof is a fourth mating connector. The third and fourth mating connectors will facilitate coupling the attachment portion to the fixed portion.
To place the flow-through series component in series with the fluidic system, the attachment portion is attached to the fixed portion. This is accomplished by coupling the first mating connector to the third mating connector, and simultaneously coupling the second mating connector to the fourth mating connector. When the respective pairs of mating connectors are so coupled, the self-closing valves in the first and second mating connectors opened, thereby allowing fluid to flow through and out of them. The bypass valve may subsequently be closed, thereby preventing fluid from flowing directly between the inlet port and the outlet port.
The fluid is instead diverted from the inlet port through the bypass outlet tube, through the first attachment tube, through the flow-through series component, through the second attachment tube, through the bypass inlet tube, and to the outlet port.
The continuous flow bypass manifold also includes an interlock mechanism located proximate the bypass valve, integrally formed in the valve housing proximate to the bypass outlet and bypass inlet tubes. The interlock mechanism performs two functions. First, the interlock mechanism prevents the bypass valve from being closed when the attachment portion is not attached to the fixed portion. Second, the interlock mechanism prevents the attachment portion from being removed from the fixed portion when the bypass valve is in a closed configuration.
The continuous flow bypass manifold of the present invention is of a construction which is both durable and long lasting, and it should also require little or no maintenance to be provided by the user throughout its operating lifetime. The continuous flow bypass manifold of the present invention is also of relatively inexpensive construction to enhance its market appeal and to thereby afford it the broadest possible market. Finally, continuous flow bypass manifold of the present invention achieves all of the aforesaid advantages and objectives without incurring any substantial relative disadvantage.
These and other advantages of the continuous flow bypass manifold are best understood with reference to the drawings, in which:
An embodiment of a continuous flow bypass manifold 100 is illustrated in
As will be further described below, an embodiment of a continuous flow bypass manifold 100 is configured to facilitate insertion and removal of at least one flow-through component in series with a fluidic system without interrupting the fluid flow within the system.
An embodiment of a continuous flow bypass manifold 100 contains a portion that is fixedly installed in a fluidic system, as well as a portion containing the at least one flow-through series component that can be removable attached to the fixed portion. Once the flow-through series component portion is attached, flow in the fluidic system is diverted from its normal operating flow path through the fixedly installed portion and is instead selectively directed through the at least one flow-through series component portion before being returned to the fluidic system. Once the at least one flow-through series component is no longer needed as part of the fluidic system, flow is once again directed back into the original flow path through the fixedly installed portion and the portion containing the at least one flow-through series component is removed. This entire process is performed without disassembling and reassembling the fluidic system. It is also accomplished without any fluid loss from the system, without interrupting the fluid flow, and without allowing any unwanted contaminants to be introduced into the fluidic system.
A fluid, for example, could be a liquid, gas, slurry, suspension, colloid, mixture, colloidal suspension, or any other material with fluidic flow properties. This list is not exhaustive and is given merely as an example. Other suitable fluids are contemplated.
Exemplary flow-through series components include particle counters, temperature gages, pressure gages, filter elements, and flow meters, among other components. Many other components are envisioned, including any components that for any reason it would be undesirable to permanently install in the fluid system.
In
The fixed portion 102 is fixedly installed as a component of the fluidic system and comprises a valve housing 106. The valve housing 106 defines a flow path from an inlet port 108 to an outlet port 110. During normal operation of the fluidic system, fluid from the fluidic system enters the valve housing 106 through the inlet port 108, passes through the flow path defined by the valve housing 106 and exits the valve housing 106 through the outlet port 110, reentering the fluidic system.
In one embodiment, the fixed portion 102 further comprises a bypass outlet tube 112 proximate the inlet port 108. The bypass outlet tube 112 is operably coupled to the valve housing 106, and is in fluid communication with the flow path. In one embodiment, the bypass outlet tube 112 is coupled to a first mating connector 113. The first mating connector 113 comprises a self-closing valve, meaning that when the first mating connector 113 is coupled to the bypass outlet tube 112 but is not coupled to another component distal from the bypass outlet tube 112, the first mating connector 113 remains in a normally closed configuration, preventing fluid from flowing out of the end of the first mating connector 113 distal from the bypass outlet tube 112. In one embodiment the first mating connector 113 is a male quick disconnect coupling, such as an ISO 16028 generic industry standard type coupling produced, for example by Snap-tite, Inc., although other suitable types of quick disconnect couplings are envisioned.
In one embodiment, the fixed portion 102 further comprises a bypass inlet tube 114 proximate the outlet port 110. The bypass inlet tube 114 is operably coupled to the valve housing 106, and is in fluid communication with the flow path. In one embodiment, the bypass inlet tube 114 is coupled to a second mating connector 115. The second mating connector 115 comprises a self-closing valve, meaning that when the second mating connector 115 is coupled to the bypass inlet tube 114 but is not coupled to another component distal from the bypass inlet tube 114, the second mating connector 115 remains in a normally closed configuration, preventing fluid from flowing out of the end of the second mating connector 115 distal from the bypass inlet tube 114. In one embodiment the second mating connector 115 is a male quick disconnect coupling, such as an ISO 16028 generic industry standard type coupling produced, for example by Snap-tite, Inc., although other suitable types of quick disconnect couplings are envisioned.
As is best illustrated in
The valve housing 106 further comprises a recessed aperture 120 through which access to the valve stem 118 is gained. The recessed aperture 120 has a key slot 122, which will be described further below. The combination of the recessed aperture 120 and the key slot 122, along with portions of the attachment portion which will be described further below, serve to function as an interlock mechanism, to prevent the bypass valve 116 from being configured into a closed configuration when the attachment portion 104 is not attached, as well as to prevent the attachment portion 104 from being decoupled from the fixed portion 102 when the bypass valve 116 is in an open configuration.
Returning to
In one embodiment the third and fourth mating connectors 130, 132 are standard female quick disconnect valves, although other suitable types of mating connectors are envisioned. The third and fourth mating connectors 130, 132 may also comprise self-closing valves. The third and fourth mating connectors 130, 132 are configured such that when the third and fourth mating connectors 130, 132 are coupled to other suitable mating connectors or other suitable components, the third and fourth mating connectors 130, 132 can be released from their coupling with these other components by applying a force to the outside of the third and fourth mating connectors 130, 132 in an axial direction away from the attached other components causing the outer body of the third and fourth mating connectors 130, 132 to slidingly retract and thereby release the third and fourth mating connectors 130, 132 from their mating engagement with these other suitable components.
A band sleeve 134 surrounds both the third and fourth mating connectors 130, 132, such that by applying a force on the band sleeve 134, one could force the third and fourth mating connectors 130, 132 to slidingly retract simultaneously, thereby releasing the third and fourth mating connectors 130, 132 from their coupling to other suitable components simultaneously.
It is also contemplated that the configuration of the male quick disconnect couplings of the fixed portion 102 and the female quick disconnect valves of the attachment portion 104 could be reversed.
In the embodiment illustrated in
In
In
The valve lever handle 136 is then inserted into the recessed aperture 120 in the top surface of the valve housing 106. As is best illustrated in
The recessed aperture 120 also defines a key slot 122. The key slot 122 is an undercut projecting radially outward from the recessed aperture 120, and defining a lip 152. When the valve lever handle 136 is turned, as in
The second function of the interlock, as well as the manipulation of the bypass valve 116, are illustrated in
Once the valve lever handle 136 is rotated ninety degrees closing the bypass valve 116, fluid in flow path is no longer able to follow the flow path between inlet port 108 and outlet port 110. Fluid is instead diverted to an alternate pathway through bypass outlet tube 112, through first attachment tube 124, through at least one flow-through component 154, through second attachment tube 126, through bypass inlet tube 114, and back into the fluidic system through outlet port 110. Therefore, the at least one flow-through component 154 has been placed in series with the fluidic system without disassembling and reassembling the system. As long as the at least one flow-through component 154 is in series with the fluidic system, the attachment portion 104 cannot be removed using the valve lever handle 136.
Components that must be placed in series with a fluidic system, but are preferably added to the system only temporarily, can be added without interrupting fluid flow in the fluidic system, without introducing contaminants to the fluidic system, and without disassembling and reassembling even a portion of the fluidic system in this manner.
As the valve lever handle 136 pulls away from the valve housing 106, the lower retaining ring 140 engages the band sleeve 134, urging the band sleeve 134 in a direction away from the valve housing 106. The band sleeve 134 is in operative engagement with the third and fourth mating connectors 130, 132. Therefore, the third and fourth mating connectors 130, 132 are urged slidingly upward allowing the third and fourth mating connectors 130, 132 to disengage from the first and second mating connectors 113, 115. The third and fourth mating connectors 130, 132 are thereby allowed to detach from first and second mating connectors 113, 115 with the continued application of force away from the valve housing 106, as illustrated in
The present invention allows addition or removal of flow-through series components to or from a fluidic system.
It allows addition or removal of flow-through series components to or from a fluidic system without disassembling and/or reassembling the fluidic system.
Further, it allows addition or removal of flow-through series components to or from a fluidic system without disrupting or being forced to discontinue the fluid flow through the fluidic system for a period of time.
It also allows addition or removal of flow-through series components to or from a fluidic system without the loss of any fluid from the system.
It also allows addition or removal of flow-through series components to or from a fluidic system by a controlled method that would prevent the ingress of any contaminants into the fluid.
It also allows addition or removal of flow-through, series components to or from a fluidic system in such a way as to prevent removal of the flow-through, series components without returning the flow path to normal state.
For purposes of this disclosure, the term “coupled” means the joining of two components (electrical or mechanical) directly or indirectly to one another. Such joining may be stationary in nature moveable in nature. Such joining may be achieved with the two components (electrical or mechanical) and any additional intermediate members being integrally formed as a single unitary body with one another or the two components and any additional member being attached to one another. Such adjoining may be permanent in nature or alternatively be removable or releasable in nature.
The continuous flow bypass manifold is of a construction which is both durable and long lasting, and it should also require little or no maintenance to be provided by the user throughout its operating lifetime. The continuous flow bypass manifold is also of relatively inexpensive construction to enhance its market appeal and to thereby afford it the broadest possible market. Finally, the continuous flow bypass manifold achieves all of the aforesaid advantages and objectives without incurring any substantial relative disadvantage. While at least one flow-through series component has been described as attached to the attachment tubes, it is also contemplated that multiple flow-through series components could be added in series or in parallel with each other in place of the at least one flow-through series component in the system described.
Although the foregoing description of the continuous flow bypass manifold and method has been shown and described with reference to particular embodiments and applications thereof; it has been presented for purposes of illustration and description and is not intended to be exhaustive or to limit the invention to the particular embodiments and applications disclosed. It will be apparent to those having ordinary skill in the art that a number of changes, modifications, variations, or alterations to the invention as described herein may be made, none of which depart from the spirit or scope of the continuous flow bypass manifold and method. The particular embodiments and applications were chosen and described to provide the best illustration of the principles of the continuous flow bypass manifold and its practical application to thereby enable one of ordinary skill in the art to utilize the continuous flow bypass manifold in various embodiments and with various modifications as are suited to the particular use contemplated. All such changes, modifications, variations, and alterations should therefore be seen as being within the scope of the continuous flow bypass manifold and method as determined by the appended claims when interpreted in accordance with the breadth to which they are fairly, legally, and equitably entitled.