VALVE SYSTEM AND METHOD
Embodiments of the invention provide a vacuum system including a housing and at least one filter disposed within the housing. A valve assembly can be at least partially disposed within the housing and can be in fluid communication with the filter. The valve assembly can include a manifold and a support member coupled to a plurality of dampers. The plurality of dampers can include a first damper and a second damper that include unequal sizes. The support member and the dampers can be configured and arranged to move between a first position and a second position.
Some conventional vacuum systems can exhibit decreased performance over the life of the system. At least some of the decrease in performance can be attributed to filter clogging. For example, at least a portion of the debris passing through the filters can be retained, clogging the filters over time and reducing air flow through the vacuum and reducing suction provided by the vacuum's motor, which leads to decreases in performance.
The manufacturers of some conventional vacuum systems attempt to address filter clogging by altering configurations of the vacuum system. For example, some manufacturers have removed filters and rely on precipitation of larger debris particulate within a receptacle. However, exhausted air, including smaller debris and particulate, must be exhausted outside of the structure in which the system is installed, which may require disposing one or more exhaust holes through walls of the structure.
SUMMARYSome embodiments of the invention provide a vacuum system comprising a housing and at least one filter that can be disposed within the housing. In some embodiments, a valve assembly can be at least partially disposed within the housing and can be in fluid communication with the filter. In some embodiments, the valve assembly can include a manifold and a support member coupled to a plurality of dampers. In some embodiments, the plurality of dampers can include a first damper and a second damper comprising unequal sizes. In some embodiments, the support member and the plurality of dampers can be configured and arranged to move between a first position and a second position.
Some embodiments of the invention provide a vacuum system comprising a housing including a motor enclosure and a filter enclosure. In some embodiments, a filter can be at least partially disposed in the filter enclosure and a manifold can be at least partially disposed within the motor enclosure. The manifold can include a support member coupled to a first damper and a second damper. In some embodiments, the first damper and the second damper can be configured and arranged to function as a relief valve for a motor. In some embodiments, a movement device can be coupled to at least a portion of the manifold. In some embodiments, the movement device can be configured and arranged to move the support member and the first and the second dampers from a first position to a second position.
Before any embodiments of the invention are explained in detail, it is to be understood that the invention is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the following drawings. The invention is capable of other embodiments and of being practiced or of being carried out in various ways. Also, it is to be understood that the phraseology and terminology used herein is for the purpose of description and should not be regarded as limiting. The use of “including,” “comprising,” or “having” and variations thereof herein is meant to encompass the items listed thereafter and equivalents thereof as well as additional items. Unless specified or limited otherwise, the terms “mounted,” “connected,” “supported,” and “coupled” and variations thereof are used broadly and encompass both direct and indirect mountings, connections, supports, and couplings. Further, “connected” and “coupled” are not restricted to physical or mechanical connections or couplings.
The following discussion is presented to enable a person skilled in the art to make and use embodiments of the invention. Various modifications to the illustrated embodiments will be readily apparent to those skilled in the art, and the generic principles herein can be applied to other embodiments and applications without departing from embodiments of the invention. Thus, embodiments of the invention are not intended to be limited to embodiments shown, but are to be accorded the widest scope consistent with the principles and features disclosed herein. The following detailed description is to be read with reference to the figures, in which like elements in different figures have like reference numerals. The figures, which are not necessarily to scale, depict selected embodiments and are not intended to limit the scope of embodiments of the invention. Skilled artisans will recognize the examples provided herein have many useful alternatives that fall within the scope of embodiments of the invention.
In some embodiments, the motor 18 can be at least partially disposed within the housing 12 and in fluid communication with at least one of the inlet 14 and the outlet 16. For example, the motor 18 can be disposed within the housing 12 and the inlet 14 can be coupled to the duct system. As a result, upon an activation signal (e.g., a user connecting an adaptor to the duct system, the user actuating a switch to close a circuit connected to the motor 18, etc.), the motor 18 can be activated to move air, effluent, or other fluids through the duct system and into the housing 12 via the inlet 14 and out of the housing 12 via the outlet 16.
In some embodiments, the motor 18 can draw air, including any debris and/or particulate carried by the air, or other fluids from the structure into the housing 12 where at least a portion of the air can pass through one or more filters 20 or other particulate-removing media 20 (e.g., filter bags, permanent filters, mesh filters, etc.). In some embodiments, the filter 20 can comprise a disposable filter 20 and in other embodiments, the filter 20 can comprise a removable and/or a reusable filter 20. In some embodiments the vacuum system 10 can comprise filters 20 of multiple configurations (e.g., one or more reusable filters 20 and one or more disposable filters 20). In some embodiments, activation of the motor 18 can draw air or other fluids into housing 12 via the inlet 14 where some or all of the debris and/or particulate can be removed from the air after passing through the filter 20. After passing through the filter 20, at least a portion of the air can be exhausted from the housing 12 via the outlet 16.
In some embodiments, the vacuum system 10 can comprise a valve assembly 22. The valve assembly 22 can be in fluid communication with the filter 20, the motor 18, and the outlet 16 so that at least a portion of the air or other fluid that enters the housing 12, flows through the valve assembly 22. In some embodiments, the valve assembly 22 can comprise a manifold 24 that can include a filter aperture 26, a motor aperture 28, and one or more intake apertures 30, and one or more exhaust apertures 32. In some embodiments, the housing 12 can comprise a motor enclosure 34 into which at least a portion of the valve assembly 22 and the motor 18 can be disposed, as shown in
Moreover, as shown in
In some embodiments, the valve assembly 22 can be in fluid communication with other elements of the vacuum system 10. For example, as shown in
Referring to
In some embodiments, the manifold 24 can comprise one or more biasing members 44 (e.g., springs) that can be configured and arranged to bias the support member 36 and dampers 38, 40 in a first position 46, as shown in
In some embodiments, when the support member 36 and the dampers 38, 40 are disposed in the first position 46, at least a portion of the air or other fluids within the vacuum system 10 can move along a first fluid path, as reflected by the arrows in
For example, when the support member 36 and dampers 38, 40 are disposed in the first position 46 and the motor 18 is active, movement of a fan (not shown) within the motor 18 can generate a vacuum within the motor aperture 28 and manifold 24. As a result of the vacuum generated by the motor 18, air and other fluids can be drawn through the duct system and enter the housing 12 via the inlet 14 and pass through the filter 20. As the air or other fluids pass through the filter 20, at least a portion of the debris and/or particulates carried by the air can be removed by filter 20. For example, the filter 20 can comprise a material including a plurality of pores (not shown) configured and arranged to enable air flow through the filter 20, but the pores can be sized to retain at least a portion of the airborne particulate.
As reflected by the arrows in
As previously mentioned, when the support member 36 and the dampers 38, 40 are disposed in the first position 46, the vacuum system 10 can operate under substantially normal conditions. For example, the user can activate the vacuum system 10 to remove debris and/or particulate from the structure by passing air or other fluids containing debris and/or particulate through the filter 20. However, after repeated use of the system 10, the debris and/or particulate can clog the filter 20, leading to reduced system efficiency (e.g., reduced airflow through the first flow path and reduced ability to generate air movement through the filter 20 and the duct system). In addition to reduced system efficiency, portions of some conventional vacuum systems 10 (e.g., the inlet 14, the outlet 16, any other apertures, the filter 20, the duct system, etc.) can become partially or completely blocked (e.g., the conventional system becomes partially or completely impermeable to material volumes of fluids passing through the filter 20 and/or housing 12). When the motor 18 is in an active state, the motor 18 can be damaged or destroyed as a result of the lack of air flow through these conventional systems 10 (e.g., the motor 18 can overheat because of the lack of air or other fluids passing through the motor 18).
Some manufacturers of conventional vacuum systems 10 can prevent and/or reduce the risk of motor 18 damage by including preventative structures. For example, some manufacturers can include a conventional relief valve (e.g., a spring-loaded relief valve) that will enable the motor 18 to draw a volume of air sufficient enough to reduce and/or prevent damage to the motor 18 in the event of significant blockage of the conventional vacuum system 10. Additionally, some manufacturers may include one or more thermal sensors that can detect when the motor 18 temperature exceeds a predetermined threshold and can further deactivate the motor 18 when the sensors detect the over-temperature condition to prevent motor 18 damage or destruction.
In some embodiments, some portions of the vacuum system 10 can comprise a self-cleaning mode. The vacuum system 10 can be configured and arranged to reduce and/or eliminate some of the problems associated with debris and/or particulate clogging the filter 20 and complete or near-complete blockage of the system 10. For example, the support member 36 and dampers 38, 40 can be moved into a second position 50 that can allow for air or other fluids to enter the manifold 24 and pass through the filter 20 to dislodge at least a portion of the debris clogging the filter 20 to reduce and/or eliminate the reduced efficiency associated with filter 20 clogging.
In some embodiments, the support member 36 and the dampers 38, 40 can be moved from the first position 46 to the second position 50 by a movement device 52. As shown in
In other embodiments, the movement device 52 can comprise a solenoid or other form of electromagnetic movement apparatus, gear boxes and motors, a servo motor, or any other device, apparatus, or structure that can move the support member 36. Moreover, although
As shown in
In some embodiments, the switch 56 and/or the movement device 52 can be coupled to one or more sensors (not shown) to control movement of the support member 36. For example, in some embodiments, at least a portion of the sensors can comprise pressure sensors (not shown) that are configured and arranged to sense a pressure differential on both sides of the filter 20 (e.g., clogging of the filter 20 can create an increase in pressure levels within the motor enclosure 34, relative to a pressure level within the filter enclosure 35, which can be sensed by the pressure sensors). As a result of detecting an increased pressure differential from the pressure sensors, the movement device 52 can move the support member 36 to enable at least partial cleaning of the filter 20, as discussed below. In other embodiments, other configurations can be used to control movement of the support member 36, such as, but not limited to a processor (not shown) coupled to a printed circuit board coupled to the system 10 and/or a mechanical timing device (e.g., a clock).
In some embodiments, the movement device 52 can move the support member 36 to the second position 50 to enable air or other fluids to pass through the filter 20 to reduce and/or eliminate clogging. For example, as shown in
In some embodiments, as a result of motor 18 being activated, air or other fluids can enter the manifold 24. For example, as reflected by the arrows in
In some embodiments, the valve assembly 22 can comprise one or more alternative configurations, as shown in
Additionally, in some embodiments, as reflected by the arrow in
In some embodiments, regardless of configuration, as a result of the dampers 38, 40 and the support member 36 moving from the first position 48 to the second position 50, air flow direction through the vacuum system 10 can change. In some embodiments, the change in air flow direction can rapidly occur. For example, soon after the system 10 receives a signal to change the valve assembly 22 configuration from the first to the second position 46, 50, the support member 36 and dampers 38, 40 can move and the direction of the air path can rapidly change (e.g., change from air entering the manifold 24 from the filter 20 to air entering the filter 20 from the manifold 24).
In some embodiments, as a result of the rapid change in direction of the air flow, at least a portion of the debris and/or particulate clogging the filter 20 can be relocated. For example, the rapid air flow change can create a shockwave-like effect that can cause the filter 20 to at least partially change geometries (e.g., deform). Because of the filter 20 changing geometries, at least a portion of the debris received by the filter 20 during operation of the vacuum system 10 can be loosened and move from portions of the filter 20 substantially adjacent to filter aperture 26, as reflected by the arrows adjacent to the filter 20 in
As result of the debris dislodging from the shockwave-like effect of the change in air flow direction, the vacuum system 10 can become at least partially unclogged, which can result in improvements in operational efficiency. As shown in
In the experiment detailed in
Vacuum systems 10 comprising the valve assembly 22 (i.e., the moveable support member 36 and dampers 38, 40) demonstrated improved operational efficiency relative to conventional vacuum systems. As shown in
Similarly, in systems comprising a bag filter 20, briefly moving the support member 36 from the first position 46 to the second position 50, at two-month intervals, enabled those systems 10 to continue to operate at approximately 85% efficiency for the equivalent of at least ten months. Also similarly, the efficiency of the same bag filter 20 vacuum system 10 functioning without the valve assembly 22 drops to about 45% during the equivalent of ten-months use. Accordingly, movement of the support member 36 and dampers 38, 40 from the first position 46 to the second position 50 can improve operational efficiency during the life of vacuum systems 10 when the movement is activated on a regular basis (e.g., about every two months).
In some embodiments, the valve assembly 22 can be configured and arranged to reduce the risk of and/or prevent damage to the motor 18 due to blockage of some portions of the vacuum system 10. In some embodiments, the dampers 38, 40 can comprise different sizes. For example, as shown in
In some embodiments, the vacuum system 10 can comprise other configurations that can enable the self-cleaning mode of operation. As shown in
In some embodiments, the vacuum system 10 can comprise a mechanical actuation device 64, as shown in
In some embodiments, the vacuum system 10 can comprise a non-motorized mechanical actuation configuration, as shown in
In some embodiments, other self-cleaning configurations can be used in lieu of or together with some of the previously mentioned embodiments. For example, mechanical rubbing or other form of contact can be applied to the filter 20 to dislodge at least a portion of the debris potentially clogging the filter 20. In some embodiments, the vacuum system 10 can include an integrated filter 20 and filter brushing system (not shown) that can be activated at predetermined time intervals to contact the filter 20 and move against a surface of the filter 20 to at least partially unclog the filter 20. In some embodiments, in lieu of being activated at predetermined time intervals, the filter brushing system 10 can be activated on an as-needed basis (e.g., when there is a reduction in filter 20 efficiency).
In some embodiments, the vacuum system 10 can comprise other configurations that can lead to relatively enhanced filter 20 efficiency over some or all of the lifespan of the system 10. For example, as shown in
In some embodiments, during, before, and/or after operation of the vacuum system 10 relatively unused and/or unclogged filter 20 can be moved from the first support member 66a and can be supported by the second and third support members 66b, 66c. As a result of being disposed substantially between the second and third support members 66b, 66c, the filter 20 can be disposed along the flow path of air or other fluids entering the housing 12 via the inlet 14. The debris within the air can be removed by the segment of the filter 20 disposed between the second and third support members 66b, 66c and can pass through the outlet 16. In some embodiments, the filter 20 can then be moved to a position more adjacent to the fourth support member 66d so that a relatively unused and/or unclogged portion of the filter 20 can be used to ensure a sufficient amount of airflow efficiency. In other embodiments, the vacuum system 10 can comprise any number of support members 66 to enable sufficient operations.
It will be appreciated by those skilled in the art that while the invention has been described above in connection with particular embodiments and examples, the invention is not necessarily so limited, and that numerous other embodiments, examples, uses, modifications and departures from the embodiments, examples and uses are intended to be encompassed by the claims attached hereto. The entire disclosure of each patent and publication cited herein is incorporated by reference, as if each such patent or publication were individually incorporated by reference herein. Various features and advantages of the invention are set forth in the following claims.
Claims
1. A vacuum system comprising:
- a housing;
- at least one filter being disposed within the housing; and
- a valve assembly being at least partially disposed within the housing and being in fluid communication with the at least one filter, the valve assembly further comprising a manifold, a support member coupled to a plurality of dampers, the plurality of dampers including a first damper and a second damper, wherein the first damper and the second damper comprise unequal sizes, and the support member and the plurality of dampers being configured and arranged to move between a first position and a second position.
2. The vacuum system of claim 1 and further comprising a motor coupled to the valve assembly.
3. The vacuum system of claim 1, wherein the at least one filter comprises at least one of a permanent filter and a bag filter.
4. The vacuum system of claim 1 and further comprising a movement device coupled to a portion of the valve assembly.
5. The vacuum system of claim 1, wherein the valve assembly comprises one or more biasing members.
6. The vacuum system of claim 1, wherein the manifold comprises one or more apertures.
7. The vacuum system of claim 1, wherein the manifold comprises one or more seating regions, wherein at least some of the seating regions are configured and arranged to engage at least one of the plurality of dampers.
8. The vacuum system of claim 7, wherein the manifold comprises a first seating region and a second seating region configured and arranged so that when the support member and the plurality of dampers are in the first position, the first damper is substantially adjacent to the first seating region and the second damper is substantially adjacent to the second seating region.
9. The vacuum system of claim 8, wherein the manifold comprises a third seating region and a fourth seating region configured and arranged so that when the support member and the plurality of dampers are in the second position, the second damper is substantially adjacent to the fourth seating region.
10. A vacuum system comprising:
- a housing including a motor enclosure and a filter enclosure;
- a filter being at least partially disposed in the filter enclosure;
- a manifold at least partially disposed in the motor enclosure, the manifold including a support member coupled to a first damper and a second damper, wherein the first damper and the second damper are configured and arranged to function as a relief valve for a motor; and
- a movement device coupled to at least a portion of the manifold, and wherein the movement device is configured and arranged to at least move the support member and the first and the second dampers from a first position to a second position.
11. The vacuum system of claim 10, wherein the first damper comprises a greater size than the second damper.
12. The vacuum system of claim 10, wherein the movement device comprises a damper motor.
13. The vacuum system of claim 10, wherein the filter comprises at least one of a permanent filter and a bag filter.
14. The vacuum system of claim 10, wherein the manifold comprises a plurality of apertures, and wherein the plurality of apertures includes at least one exhaust aperture and at least one motor aperture.
15. The vacuum system of claim 14, wherein the motor is coupled to the manifold substantially adjacent to the motor aperture.
16. The vacuum system of claim 14, wherein the housing comprises at least one inlet and at least one outlet, and wherein the at least one exhaust aperture is in fluid communication with the at least one outlet.
17. The vacuum system of claim 10 and further comprising at least one biasing member at least partially positioned within the manifold.
18. The vacuum system of claim 10, wherein the manifold comprises a plurality of seating regions that are configured and arranged to engage at least one of the first damper and the second damper.
19. A method for assembling vacuum system, the method comprising:
- positioning a filter at least partially within a housing;
- disposing a valve assembly at least partially within the housing so that the valve assembly is in fluid communication with the filter, the valve assembly including a manifold comprising a support member coupled to a first damper and a second damper, and wherein the first damper and the second damper comprise different sizes; and
- coupling a movement device to the valve assembly, wherein the movement device is configured and arranged to at least move the support member and the first and the second dampers from a first position to a second position.
20. The method of claim 19, and further comprising positioning a biasing member at least partially within the manifold.
Type: Application
Filed: Feb 28, 2012
Publication Date: Aug 29, 2013
Inventors: Steve Martel (St. Samuel), Martin Gagnon , Robert Lagueux (St-Nicephore), Mathieu Lalancette-Jutras (Drummondville)
Application Number: 13/407,657
International Classification: A47L 9/10 (20060101);