1. Field of the Invention
This invention pertains generally to methods and apparatus relating to pneumatic valves.
2. Description of Related Art
Pneumatic valves find uses in a variety of situations, such as, natural gas distribution systems, pneumatic tools, and controlling the flow of pressurized air to a paintball marker. Valves may benefit from a system that has a vent that may discharge the pneumatic fluid from the system when the fluid source is shut off, and a body that connects directly to a paintball marker.
Methods and apparatus according to various aspects of the present invention comprise an on-off controller configured to control the flow of pressurized pneumatic fluid and to connect directly to a pneumatic device. In one embodiment, the on-off controller comprises a body having an inlet, at least one outlet, a vent, at least one connection bore, an activator positioned in the body, a position mechanism configured to move the activator in the body, a seal configured to sealably contact the activator and seal the vent, wherein the body may connected directly to a paintball marker.
A more complete understanding of the present invention may be derived by referring to the detailed description and claims when considered in connection with the figures, wherein like reference numbers refer to similar elements throughout the figures, and:
The accompanying drawings show an exemplary embodiment by way of illustration and best mode. While these exemplary embodiments are described, other embodiments may be realized and changes may be made without departing from the spirit and scope of the invention. Thus, the detailed description is presented for purposes of illustration only and not of limitation. For example, the steps recited in any of the method or process descriptions may be executed in any suitable order and are not limited to the order presented.
For the sake of brevity, conventional mechanical aspects and components of the individual operating components may not be described in detail. Furthermore, the representations of the various components are intended to represent exemplary functional relationships, positional relationships, and/or physical couplings between the various elements. Many alternative or additional functional relationships, physical relationships, or physical connections may be present in a practical system. The present invention may be embodied as a customization of an existing system, or an add-on product.
Introduction
The present invention is described partly in terms of functional components and various methods. Such functional components may be realized by any number of components configured to perform the specified functions and achieve the various results. For example, the present invention may be formed using a variety of materials, such as, aluminum, electroplated aluminum, steel, stainless steel, brass, titanium, iron, bronze alloy, plastic, composite materials, nanomaterials, and any other material that may be suitable for an application or environment. The present invention may be used to control the flow of any pneumatic fluid, for example, air, oxygen, natural gas, hydrogen, and so forth. The inlet may be configured to interface with any source of pressurized fluid, such as, a bottle of pressurized fluid, a fluid distribution hose, a pipe, and directly to a pneumatic compressor outlet. The outlet may be configured to interface with a device that may consume pressurized pneumatic fluid, such as pneumatic tools, a gas fireplace, and paintball markers. The outlet may connect directly to a pneumatic device and/or it may connect to a hose that goes to a pneumatic device. The activator may be fashioned of any suitable material, for example, aluminum, electroplated aluminum, steel, brass, titanium, iron, composite materials, nanomaterials, and the like. The activator may be of any size and shape suitable for an application or environment. The position mechanism may be formed of any suitable material and may connect to and/or move the activator in any manner appropriate for the application. For example, the position mechanism may be a lever, a crank, a threaded knob, a screw, a magnetic device, and the like, which may carry out a variety of functions. The seals may be fashion of any suitable material, for example, plastic, Teflon, butyl, polymer, urethane, fluorocarbon polymer material, plastic, polycarbonate, polyethylene, polypropylene, polyvinylchloride, and the like. The seals may have any shape suitable for an application and may be mounted in any suitable manner. The seals may interact with the activator in any manner suitable for the operation of the on-off controller. The on-off controller may assume any operational state, for example, off, off-locked, on, on-locked, vent, vent-locked, and the like to achieve any suitable result.
In addition, the present invention may be practiced in conjunction with any number of applications and environments, and the systems described are merely exemplary applications of the invention. Further, the present invention may employ any number of conventional techniques for manufacture, testing, connecting, mounting, and repair.
The Apparatus
Methods and apparatus according to various aspects of the present invention comprise an on-off controller configured to control the flow of pressurized pneumatic fluid and to mount directly to a pneumatic device such as, for example, a paintball marker. For example, a source of pressurized fluid may be a bottle having a poppet valve configured to release pressurized fluid from the bottle outlet when the poppet is depressed. An on-off controller inlet may connect to the bottle outlet. An activator, positioned in the on-off controller body, may be configured to depress the bottle poppet valve to allow pressurized fluid from the bottle outlet to enter the on-off controller inlet, pass through the on-off controller body, and out an on-off controller outlet. A position mechanism may move and/or control the position of the activator. The on-off controller may be placed in an on-state by moving the activator such that it depresses the bottle poppet; thereby starting the flow of pressurized fluid. The on-off controller may be placed in an off-state by moving the activator away from the bottle poppet such that the poppet is no longer depressed; thereby stopping the flow of pressurized fluid. Moving the activator past the off-state position may place the on-off controller in a vent-state where pressurized fluid in the body and/or in any cavity connected to an on-off controller outlet exits to the atmosphere. In the vent-state, the on-off controller may be removed more easily from the bottle. The on-off controller method and apparatus may be used for any suitable purpose or combination of purposes, such as controlling the flow of pressurized fluid to a paintball marker, a spray painter, injection molding equipment, an air horn, a gas stove, or any other suitable application.
In particular, referring to
Body
The body 12 may be of any material, shape, size, and configuration for an application or environment. The body 12 may use any material or combination of materials suitable for an application, for example, at least one of aluminum, electroplated aluminum, steel, stainless steel, brass, titanium, iron, copper, zinc, composite materials, and nanomaterials. The body 12 may have at least one connection bore 100 configured to connect the body 12 directly to a device, such as, for example, an air horn, a paintball marker, and other pneumatic device. In an exemplary embodiment, referring to
The body 12 may be formed of a single piece of material or of multiple assembled pieces. In one embodiment, referring to
Inlet
Inlet 14 may be positioned at any location in body 12, for example, axially, angularly to an axis, one a side, and on an end. In an exemplary embodiment, inlet 14 is positioned on one end of a substantially cylindrical body 12 and is axial to the activator 22, sealing ring 26, gas wall insert 28, and outer shell 30. Inlet 14 may connect to a source of pressurized fluid in any suitable manner. For example, inlet 14 may connect to a source using a quick connect coupler, a screw connection, a press fit connection, a clamp connection, and any other type of connector suitable for the application. In an exemplary embodiment, the inlet 14 threadedly connects to a bottle using a ½-14 NPSM thread.
Outlet
Body 12 may have at least one outlet 20. Each outlet 20 may be positioned at any location on body 20. In one embodiment, at least one outlet 20 is positioned substantially perpendicular to the axis of body 12. Each outlet 20 may connect in any suitable manner to any type of device that uses pressurized fluid. For example, each outlet 20 may connect to a pneumatic device using at least one of a quick connect coupler, a threaded connection, a press fit connection, a clamp connection, and any other type of connector suitable for an application. In one embodiment, each outlet 20 may connect to a hose fitting in a threaded manner. In an exemplary embodiment, the hose fitting connects to each of the outlets 20 using a ⅛″ NPT thread and the hose connects to the fitting using a push-lock connection. Fluid communication between inlet 14 and each of the outlets 20 may be established in any manner. In one embodiment, inlet 14 is in constant fluid communication with each outlet 20 through body cavity 80. Body cavity 80 may be a cavity of any nature, for example, an axial bore and/or at least one passage between the inlet 14 and each outlet 20. In an exemplary embodiment, the body cavity 80 comprises an axial bore and three passages from the axial bore to each outlet. In another embodiment, inlet 14 has fluid communication with at least one outlet 20 only in the on-state. In another embodiment, inlet 14 had fluid communication with at least one outlet 20 only in the on-state and the off-state.
Activator
Activator 22 may be any configuration, size, and material suitable for an application or environment. The activator 22 may be configured to activate and/or deactivate the flow of pressurized fluid into the inlet 14 in any suitable manner, for example, the activator 22 may control fluid flow through physical contact, magnetic activation, light activation, electrical activation, heat, vibration, and any other manner suitable for the configuration. In an exemplary embodiment, a bottle of pressurized fluid (not shown) connects to inlet 14. Fluid flow from the bottle is controlled by a poppet valve at the outlet of the bottle. Depressing the poppet enables pressurized fluid to flow from the bottle into the inlet 14. The poppet valve may be resiliently urged into a closed position when the poppet is in a non-depressed position. Decreasing the pressure the activator 22 exerts on the poppet may enable the poppet to move to a closed position; thereby stopping the flow of pressurized fluid from the bottle into the inlet 14. The movement of the poppet into the closed position may also move activator 22 into the off-state position. The position of activator 22 controls the poppet position and therefore the flow of pressurized air. In one embodiment, the activator 22 may be positioned axially to the poppet such that axial movement of activator 22 may depress or release the poppet thereby enabling or disabling, respectively, the flow of pressurized fluid from the bottle into outlet 14. In another embodiment, the activator may be positioned to one side of the poppet and may be shaped in such a manner that movement of the activator 22 across the poppet causes the poppet to be depress and movement away from the poppet enables the poppet to return to its closed position.
Activator 22 may have any shape and/or size suitable for an application or environment and may be formed as a single piece or from multiple pieces. For example, the activator 22 may be a single piece rod, a single piece rod of varying diameter, a single piece rod with a slot, a multiple piece rod, and a combination of multiple parts of suitable shapes. In one embodiment, referring to
The activator 22 may be configured to interface with the position mechanism in any suitable manner for an application and environment. For example, the position mechanism may connect to one end of a rod-shaped activator 22, to a side of a rod-shaped activator 22, to a pin 110, to a position connector 112, and a depressor 116. In an exemplary embodiment, referring to
The activator 22 may be configured to interface with the source of pressurized fluid in any suitable manner for an application and environment. In an exemplary embodiment, referring to
Connection Bores
Connection bores 100 may be configured to connect body 12 to any suitable device in any manner suitable for the application or environment. Connection bores 100 may be placed at any suitable location on, in, and through body 12 to facilitate connection of body 12 directly to a pneumatic device. For example, connection bores 100 may pass through the body 12 axis, partially parallel to the body 12 axis, substantially parallel to the body 12 axis, at an angle to the body 12 axis, and offset from the body 12 center axis. In an exemplary embodiment, the connection bores 100 are orthogonal to and intersect the body 12 axis. In another embodiment, referring to
The activator 22 may be configured in any manner to not block the connection bores 100. In an exemplary embodiment, referring to
Position Mechanism
The position mechanism 16 may use any material or combination of materials suitable for the particular application, for example, at least one of aluminum, electroplated aluminum, steel, stainless steel, brass, titanium, iron, copper, zinc, plastic, composite materials, and nanomaterials. The position mechanism 16 may be of any configuration for a particular application or environment suitable for moving activator 22 and may interface with any portion of activator 22. For example, the position mechanism 16 may be a lever, a screw, a threaded knob, a solenoid, a magnetic device, a stepping motor, a servo motor, and any other suitable device. The position mechanism 16 may be formed of a single piece of material or several assembled pieces. In an exemplary embodiment, referring to
Seals
Seal 24 and seal ring seal 36 may be of any material, size, and configuration for an application or environment. Seal 24 and seal ring seal 36 may use any material suitable for the purpose of sealing, for example, plastic, hemp, Teflon, butyl, polymer, plastic, polycarbonate, polyethylene, polypropylene, polyvinylchloride, and metal. Seal 24 and seal ring seal 36 may be any shape suitable for a particular configuration or environment, for example, round, annular, spherical, and a strip. In one embodiment, seal 24 is a butyl o-ring configured to sealably contact activator 22. Seal ring seal 36 is a butyl o-ring configured to sealably contact outer shell 30.
Methods
Controlling the flow of pressurized liquid through on-off controller 10 may be accomplished in any manner, using any suitable apparatus, using any suitable body 12, activator 22, position mechanism 16, and seal 24. The position of the activator 22 may define any number of operating states in which the flow of pressurized fluid may be controlled in any manner. In an exemplary embodiment, the position of the activator 22 may define three operating states: an on-state, an off-state, and a vent state. The position of the activator 22 and the detent 46 may define a fourth on-locked-state. In another embodiment, the position of the activator 22 defines four operating states: an on-state, an off-state, a seal-outlets-state, and a vent state. For this embodiment, the seal-outlets-state pneumatically isolates the outlets such that venting pressurized fluid from the body cavity 80 does not vent pressurized fluid from the outlets or any cavity in fluid communication with an outlet.
On-State
Placing the on-off controller 10 in an on-state may be accomplished in any manner. In an exemplary embodiment, referring to
On-Locked-State
Placing the on-off controller 10 in an on-locked-state may be accomplished in any manner. In an exemplary embodiment, referring to
Off-State
Placing the on-off controller 10 in an off-state may be accomplished in any manner. In an exemplary embodiment, referring to
Vent-State
Placing the on-off controller 10 in a vent-state may be accomplished in any manner. In an exemplary embodiment, referring to
Closing
Although the description above contains many details, these should not be construed as limiting the scope of the invention but as merely providing illustrations of some of the exemplary embodiments of this invention. The scope of the present invention fully encompasses other embodiments, and is accordingly to be limited by nothing other than the appended claims, in which reference to an element in the singular is not intended to mean “one and only one” unless explicitly so stated, but rather “one or more.” All structural, chemical, and functional equivalents to the elements of the above-described exemplary embodiments are expressly incorporated by reference and are intended, unless otherwise specified, to be encompassed by the claims. Moreover, it is not necessary for a device or method to address each and every problem sought to be solved by the present invention for it to be encompassed by the present claims. Furthermore, no element, component, or method step in the present disclosure is intended to be dedicated to the public regardless of whether the element, component, or method step is explicitly recited in the claims. No claim element is to be construed under the provisions of 35 U.S.C. 112, sixth paragraph, unless the element is expressly recited using the phrase “means for.” The terms “comprises,” “comprising,” or any other variation, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.