Pneumatic lost motion/binary device system and method

Abstract

Some embodiments include an assembly with an inlet housing enclosing an outlet housing that includes an inlet. The outlet housing includes an outlet port and a channel or aperture coupled to an outlet and apertures coupled to atmosphere. A moveable or flexible member is positioned in the inlet housing coupled to the outlet housing, and can deform, flex and/or move based on a flow and/or pressure of fluid from the inlet. Based on the flow and/or pressure of fluid from the inlet, the moveable or flexible member can reversibly move from a first position to a second position and/or from a second position to a first position. The first position is characterized by the moveable or flexible member being coupled to, proximate to, sealed to the aperture, and the second position is characterized by the moveable or flexible member being moved away from the aperture.

Claims

1. A valve assembly comprising: an inlet, a first outlet, at least one channel, and a moveable member; wherein the moveable member is configured and arranged to deform, flex and/or move based on a fluid pressure from the inlet; wherein the at least one channel enables a fluid coupling of the inlet and the first outlet; wherein at least a portion of the moveable member is configured to move away from the at least one channel; and wherein at least a portion of the moveable member is configured to at least partially seal the at least one channel; wherein the moveable member includes a base end and a movable seated end; wherein the moveable member includes a curved surface between the base end and the movable seated end; when the curved surface is configured to remain curved when at least a portion of the moveable member at least partially seals the at least one channel and when the moveable member moves away from the at least one channel; wherein a leak path is configured to cause the fluid pressure directed from the inlet to drop and cause the at least a portion of the moveable member to move over an at least one aperture of the at least one channel as a result of the drop in fluid pressure.

2. The valve assembly of claim 1, further comprising: at least one port, and a second outlet; wherein the at least one port is configured to enable compressed fluid to flow through the second outlet.

3. The valve assembly of claim 1, further comprising: at least one port, and a second outlet; wherein the at least one port is configured to enable compressed air to flow through the second outlet.

4. The valve assembly of claim 3, wherein the leak path enables a fluid coupling of the inlet and the second outlet.

5. A pneumatic valve comprising: an inlet, a first outlet, at least one port, a second outlet, at least one channel, a leak path, and a moveable member; wherein the moveable member is configured and arranged to deform, flex and/or move based on a fluid pressure directed from the inlet; wherein the at least one channel enables a fluid coupling of the inlet and the first outlet; wherein the at least one channel comprises at least one aperture in a substantially transverse direction relative to the first outlet; wherein the at least a portion of the moveable member is configured to move over the at least one aperture in response to a drop in the fluid pressure; wherein at least a portion of the moveable member is configured to be moved away from the at least one aperture by the fluid pressure; and wherein at least a portion of the moveable member is configured to at least partially seal the at least one channel; wherein the at least one port is configured to enable compressed air to flow through the second outlet; wherein the leak path enables a fluid coupling of the inlet and the second outlet; wherein the leak path is configured to cause the fluid pressure directed from the inlet to drop and cause the at least a portion of the moveable member to move over the at least one aperture as a result of the drop in the fluid pressure.

6. The pneumatic valve of claim 5, wherein the moveable member is configured and arranged to deform, flex and/or move based on a pressure of outlet air directed from the second outlet.

7. A valve assembly comprising: an inlet, a first outlet, a second outlet, at least one channel, a flexible member; an outlet port, and a leak path; wherein the flexible member is configured and arranged to deform, flex and/or move based on a fluid pressure directed from the inlet; wherein the at least one channel enables a fluid coupling of the inlet and the first outlet; and wherein the at least one channel comprises at least one aperture in a substantially transverse direction relative the first outlet; wherein the at least a portion of the flexible member is configured to move over the aperture in response to a drop in the fluid pressure; wherein at least a portion of the flexible member is configured to move away from the at least one aperture in response to an increase in the fluid pressure from the inlet; wherein the leak path enables a fluid coupling of the inlet and the second outlet while the flexible member is moved away from the at least one aperture wherein the leak path is positioned between the flexible member and the outlet port.

8. The valve assembly of claim 7, wherein at least a portion of the flexible member is configured to at least partially seal the at least one channel.

9. The valve assembly of claim 7, wherein the outlet port comprises the first outlet.

10. The valve assembly of claim 7, wherein the flexible member is configured and arranged to deform, flex and/or move based on an air pressure directed from the second outlet.

Description

DESCRIPTION OF THE DRAWINGS

(1) FIG. 1 illustrates a perspective view of a valve assembly in accordance with some embodiments of the invention.

(2) FIG. 2A is a cross-sectional view of a valve assembly including the beginning of an operational state with compressed air flowing according to at least one embodiment of the invention.

(3) FIG. 2B is a close-up cross-sectional view of a diaphragm of the valve assembly according to some embodiments of the invention.

(4) FIG. 3 is a cross-sectional view of a valve assembly in an operational state with compressed air flowing and diaphragm actuated and moved from a first position to a second position according to at least one embodiment of the invention.

(5) FIG. 4 is a cross-sectional view of a valve assembly following the operational state representation of FIG. 3 with atmospheric air entering the outlet end and diaphragm moved to a first position according to at least one embodiment of the invention.

DETAILED DESCRIPTION

(6) 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.

(7) 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 and fall within the scope of embodiments of the invention.

(8) Some embodiments provide a system, apparatus and method to use a lost motion or binary action to create a momentary motion of a fluid to do some work. Some embodiments provide a binary or lost motion valve activation. Some embodiments comprise a one-way valve.

(9) Some embodiments of the invention provide a substantially binary way to direct fluid (e.g., air, gas, liquid, or a combination thereof) from a source such as a pneumatic button to another source that requires a force to act on the other source. For example, FIG. 1 illustrates a perspective view of a valve assembly 100 in accordance with some embodiments of the invention. In some embodiments, the valve assembly 100 can comprise a diverter body 110, and a coupled or integrated diverter cover 120. Further, an internally positioned diaphragm 130 can be fluidly coupled to a fluid inlet 148 and a fluid outlet 150 that can be variably fluidly coupled to the fluid inlet 148 as well.

(10) In one non-limiting embodiment as shown in FIG. 2A, two housings and a flexible member provide air chambers. In some embodiments, the assembly 100 comprises an inlet housing 115 which has an inlet port (fluid inlet 148) for incoming air or other fluid. Further, in some embodiments, the assembly 100 comprises an outlet housing 145 and also includes an outlet port 150 substantially at the center of the assembly 100, and multiple vent apertures 105 located around a surface in a substantially transverse direction relative to the outlet port 150, and/or radially positioned with respect to the outlet port 150.

(11) In some embodiments of the invention, the outlet port 150 of the outlet housing 145 is closed at the entrance surface and has multiple openings along its side wall near the entrance. For example, some embodiments include a flexible member 130 positioned in the assembly 100 between a port 107 and outlet 150 of the outlet housing 145, and the outer housing 115 and fluid inlet 148. In some embodiments, the outlet housing 145 in the region of or adjacent to the port 107 can include one or more transition regions or steps 108 from the port 107, and/or one or more inwardly guided surfaces 147 that can surround at least a portion of the aperture 109.

(12) FIG. 2A is a cross-sectional view of a valve assembly including the beginning of an operational state with compressed air flowing according to at least one embodiment of the invention. FIG. 2B is a close-up cross-sectional view of a diaphragm of the valve assembly according to some embodiments of the invention. In some embodiments, the flexible member 130 comprises a base end 138 at one end and seated end 139 at an opposite end. A moveable and/or flexible diaphragm 133 of the flexible member 130 extends between the base end 138 at one end and seated end 139. In some embodiments, the diaphragm 133 can comprise an outer side 133a facing the inlet housing 115 and an inner side 133b facing the port 107 of the outlet housing 145.

(13) In some embodiments, the base end 138 can comprise a moveable body 137 comprising a top side 137a and a coupled seal side 137b. In some embodiments, the front end 146 of the outlet housing 145 includes apertures 275. In some embodiments, based on a state of deformation or position of the flexible member 130 including the diaphragm 133, the apertures 275 can enable a fluid coupling of the inlet 148 and the outlet 150. For example, as shown in FIGS. 2A and 2B, in some embodiments, the moveable body 137 of the base end 138 can be positioned on top or over the aperture 275 (shown as the first position 290b). In this arrangement, the seal side 137b can at least partially or fully seal the aperture 275, thereby preventing passage of fluid (e.g., such air) through the aperture 275. Further, in this instance, the coupling of the base end 138 with the aperture 275 can prevent or reduce fluid (e.g., such as air) from traveling into the assembly 100 from the inlet 148, and through the aperture 275 and out through the outlet 150.

(14) In some embodiments, when compressed air (200) is delivered to the inlet port 148 of the inlet housing 115, the air chamber 116 formed by the inlet housing 115, the outlet housing 115 and the flexible member 130 can be pressurized, causing at least a portion of the flexible member 130 to deform. For example, FIG. 3 is a cross-sectional view of a valve assembly 100 in an operational state with compressed air flowing (fluid 200 with flow or pressure 200a), and diaphragm 133 actuated and moved from a first position 290b to a second position 290a according to at least one embodiment of the invention. In some embodiments, based on a flow or pressure 200a of fluid 200 entering the assembly 100, at least a portion of the flexible member 130 can move, deform, and/or flex so that at least a portion of the base 138 can move over and/or away from at least a portion of the aperture 275. In some embodiments, the flexible member 130 can move away from the position 290b to the second position 290a. In this instance, the seal side 137b can move away from the aperture 275, thereby enabling the passage of fluid (e.g., such air). In this instance, the position of the base end 138 away from the aperture 275 enable fluid (e.g., such as air) to travel into the assembly 100 from the inlet 148 (flow 200a), and through the aperture 275 from passageway 170, and out through the outlet 150 forming an exit flow 200b.

(15) In some embodiments, the movement of the base 238 can be facilitated by a coupling of the seated end 139 of the flexible member 130 which can be secured into a space or gap formed between portions of the inlet housing 115 and portions of the outlet housing 145 adjacent or near the front end 146. For example, in some embodiments, the seated end 139 can be positioned between the side 145a and ledge 145b of the outlet housing 145, and the ledge 115a and side 115b of the inlet housing 115. In some further embodiments, the seated end 139 can comprise a notch 140. In some embodiments, the notch 140 can provide a strain relief and/or can enable movement, deformation, and/or flexing of at least a portion of the flexible member 130 including the diaphragm 133.

(16) In some embodiments, during the operational state of the assembly shown in FIG. 3, air paths are provided at the openings 300 along the side wall of the port 107 of the outlet housing 145, allowing compressed air to flow through the outlet 105 of the outlet housing 145 and to be delivered to another source to do some work (e.g., to move a diaphragm). Further, a small leak path 200c can be created between the inner edge of the flexible member and the outlet port of the outlet housing at the second position 290a. Due to this leak path, the compressed air (200) can be vented out through the outlet 105 on the outlet housing 145, causing the incoming pressure (flow and pressure 200a) to drop quickly in some embodiments.

(17) In one example operational embodiment of the invention, if the pressurized air (200) is supplied by a pneumatic button by an user's pushing on the button, the quick drop of air pressure due to the leak at the second position 290a of the assembly 100 can remove the control of the user on the work done by the other source (e.g., such as to deform a diaphragm). In this instance, if the user continues to hold on the pneumatic button, no further compressed air pressure will be maintained through the assembly. This embodiment can enable the user to actuate the button and a coupled device such as a valve, while preventing the valve from continuing to be actuated even if the user continues to actuate the button. Accordingly, if the valve is a flush valve, the flush volumes can be better controlled because the user cannot increase flush volumes by holding down the button. In some embodiments, the pneumatic button can be located remotely from the device(s) it actuates, providing greater flexibility in locating the button and other system components.

(18) FIG. 4 is a cross-sectional view of a valve assembly 100 following the operational state representation of FIG. 3 with atmospheric air 240 entering the port 107 and traveling towards the diaphragm 133, and where the diaphragm 133 is moved to a first position 290b from the second position 290a by flow or pressure 245 according to some embodiments of the invention. In some embodiments, when there is no compressed air 200 being delivered to the inlet port 148 of the inlet housing 115, or a reduced flow or pressure 200a, the air chamber 116 formed by the inlet housing 115, the outlet housing 115 and the flexible member 130 can be de-pressurized, causing at least a portion of the flexible member 130 to deform.

(19) For example, in some embodiments, the diaphragm 133 is actuated and moved from a second position 290a to a first position 290b. In some embodiments, based on a flow or pressure 200a of fluid 200 entering the assembly 100 (which may be no flow or fluid at atmospheric pressure, at least a portion of the flexible member 130 can move, deform, and/or flex so that at least a portion of the base 138 can move over and/or towards at least a portion of the aperture 275. In this instance, the seal side 137b can move over the aperture 275, thereby reducing, limiting, or preventing the passage of fluid (e.g., air). In this instance, the position of the base end 138 over the aperture 275 can prevent or reduce fluid (e.g., air) traveling into the assembly 100 from the inlet 148 (flow 200a), and through the aperture 275 from passageway 170.

(20) 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 description and figures, and/or claims below.