The present disclosure relates in general to a safety container for storing and dispensing flammable fluids, and in particular to a safety container that includes a valve assembly with a pour spout, a fill spout, and a venting system.
The disclosure relates to safety cans or containers for holding fluids and especially, although not exclusively, to containers for flammable fluids such as gasoline, oil, diesel, kerosene and the like. In general, these safety containers may be one of two types. The first type is commonly referred to as a Type I can. The Type I can is a container with one spout through which both filling and pouring are accomplished.
The Type I can is typically used in applications where liquid is to be poured from the can into a container having a wider opening than the opening of the Type I can. In instances where the receiving container has an opening that is smaller than the opening of the safety can, a hinged funnel attachment can be installed on the safety can to prevent spillage during the filling operation. The Type I can may be inconvenient to use in the latter situation because it can be burdensome to place the funnel attachment in line with the spout when pouring from the can, move the funnel away from the spout when filling the can, and then return the funnel over the spout for pouring again.
The second type is commonly referred to as a Type II can. The Type II can is a container with two separate spout openings, one used to fill the can and the other used to pour therefrom. Typically, there is a hose associated with the pouring spout to allow pouring into a small opening. Also, a Type II can includes a venting feature.
A Type II can is more convenient to pour from than a Type I can because the Type II can may include an attached hose that does not need to be detached when the can is being filled. However, the Type II can of the prior art is often more expensive to produce than the Type I can because of the necessity of providing two spouts, for example. Furthermore, the mechanisms for operating the dual spouts can be complicated and difficult to use. Examples of such safety cans include those shown and described in U.S. Pat. Nos. 6,390,153; 6,772,918; and 7,152,764, which are incorporated in their entireties herein by reference.
The present disclosure is generally directed toward providing a safety can with a Type II configuration. In one aspect, the disclosure provides a can for storing and dispensing liquids. The can includes a receptacle and a valve assembly connected to the receptacle. The receptacle defines an inner chamber and includes an outer surface defining a main opening in fluid communication with the inner chamber. The valve assembly includes a valve body, a fill cap, and a pour valve. The valve body defines a fill opening, a pour opening, a main passage, and a pouring valve passage. The main passage extends along a main passage centerline between the fill opening and a main passage opening. The main passage opening is aligned and fluidly open to the main opening of the receptacle such that the main passage and the inner chamber are fluidly connected. The pouring valve passage extends along a pouring valve passage centerline and is in communication with the pour opening. The valve body defines at least one fluid passage fluidly interconnecting the main passage and the pour opening. The main passage centerline is substantially perpendicular to the pouring valve passage centerline. The main passage centerline is disposed at an offset distance, D, from the pouring valve passage centerline along an axis that is perpendicular to the pouring valve passage centerline. The fill cap is adapted to selectively cover the fill opening. The pour valve is movably disposed within the pouring valve passage over a range of travel between a closed position and an open position. The pour valve is adapted to fluidly block the pour opening when the pour valve is in the closed position.
In another aspect, the disclosure describes a valve assembly for a Type II fluid receptacle having an inner chamber suitable for storage and dispensing of flammable liquids. The valve assembly includes a valve body, a fill cap, and a pour valve. The valve body defines a fill opening, a pour opening, a main passage, and a pouring valve passage. The main passage extends along a main passage centerline between the fill opening and a main passage opening. The pouring valve passage extends along a pouring valve passage centerline and is in communication with the pour opening. The valve body defines at least one fluid passage fluidly interconnecting the main passage and the pour opening. The main passage centerline is substantially perpendicular to the pouring valve passage centerline. The main passage centerline is disposed at an offset distance, D, from the pouring valve passage centerline along an axis that is perpendicular to the pouring valve passage centerline. The fill cap is adapted to selectively cover the fill opening. The pour valve is movably disposed within the pouring valve passage over a range of travel between a closed position and an open position. The pour valve is adapted to fluidly block the pour opening when the pour valve is in the closed position.
In accordance with principles of the present disclosure, there is provided a safety can for storing flammable liquid such as gasoline, diesel fuel, and the like. The safety can includes a receptacle and a valve assembly having a fill port and a separate pour port. In the illustrated embodiments, the valve assembly includes an ergonomic trigger mechanism to operate a pour valve and a flip-top cover assembly to selectively open and close the fill port. The trigger is operated to actuate the pour valve assembly to pour liquid from the can when the trigger is moved away from the receptacle. A flip-top lever is moved to open a fill cover of the fill cover assembly to allow the fill port to be accessible. After a desired amount of fluid is conveyed into the receptacle via the fill port, the lever is released to automatically close the fill cover which is biased to the closed position via a spring. The fill port and the pour port are disposed in offset relationship to each other relative to a longitudinal pour axis which is substantially parallel to the line of action of the pour valve assembly.
The safety can of the present disclosure can include an integral automatic venting system to facilitate pouring liquid from the can. The venting system is linked to the pour valve actuation system.
In some embodiments, a safety can of the present disclosure can be used to store flammable liquids, such as, gasoline, diesel fuel, and the like, for example, and includes a valve mechanism that provides a Type II configuration with a pair of ports, a fill port and a pour port or spout. Both spouts can be equipped with flame arrestors to help dissipate heat to inhibit flashback ignition. The safety can includes a trigger assembly for convenient operation of the pour spout. The trigger can be positioned to pour from the can and to place the container in a safety position.
In some embodiments, the safety can includes a receptacle and a valve mechanism that has a body assembly, a fill cover assembly, a pour valve assembly, and a trigger assembly. The body assembly of the valve mechanism can be mounted to the receptacle. The body assembly can include a fill port and a separate pour port. The fill cover assembly can be pivotally mounted to the body assembly about a fill cover axis. The pour valve assembly can be movably mounted to the body assembly and be disposed therein.
The trigger assembly can be pivotally mounted to the body assembly about a trigger axis. The trigger assembly can be operably engaged with the pour valve assembly for selective movement of the pour valve assembly between a closed position and an open position. Moving the trigger away from the receptacle can move the pour valve assembly from the closed position to the open position. The pour valve and the pour port are disposed along a longitudinal pour axis of the valve mechanism, and the fill port is disposed in offset relationship to the longitudinal pour axis.
In some embodiments, the safety can includes an integral automatic venting system to facilitate pouring liquid from the can. The venting system can be linked to the pour valve actuation system. The venting system can resist venting as a result of increased pressure build up within the can. Pressure build up can be vented through the fill cover assembly in the event such pressure rises above a predetermined value to help guard against pressure buildup at elevated temperatures and help avoid potential explosion.
A handle can be mounted to the body assembly. A flexible metal hose can be mounted to the body assembly to facilitate the dispensing of liquid from the safety can and to provide a bonding path to a receiving vessel.
In some embodiments, the safety container of the present disclosure can include a cage to protect the valve assembly. A clamp can be mounted to the fill cover assembly to provide an additional safety feature. The clamp can include a thumbscrew for selectively engaging the fill cover to secure the clamp thereto. The clamp can be pivoted out of the way when not in use. The clamp can include a fusible link configured to sever upon reaching a predetermined temperature.
Turning now to the Figures, an illustrative safety can is shown in the drawings that includes a receptacle and a valve assembly mounted thereto. Although a particular embodiment for a safety can is shown, variations for different can fluid capacities and/or additional features are contemplated. An outline view of a safety container or can 100 in accordance with the present disclosure is shown in
The can 100 is adapted to store and dispense liquids, such as gasoline, oil, diesel, kerosene, solvents and the like, and may be color-coded depending on the type of fluid carried. The can 100 can be adapted to carry various capacities of fluid, the most common of which being one, three or five gallon capacities for imperial or U.S. systems of fluid volume measurement.
Referring to
The valve assembly 200 provides the can 100 with a Type II configuration. As shown in
Referring to
In the illustrated embodiment, the fill cover 204 is pivotally connected to the body 202 at a pivot 217 such that the fill cover 204 is movable over a range of travel between a closed position, wherein the fill port is occluded, and an open position, wherein a fill port 220 is accessible to allow the receptacle to be filled. The pivot 217 includes a resilient biasing element or spring 218 that biases the fill cover 204 against the fill opening 220 of the valve body 202. The cover spring 218 acts upon a cover operating lever 219 which in turn acts to place the fill cover gasket in sealing engagement with the fill port 220 of the body 202. In the illustrated embodiment, the resilience of the spring 218 is selected to permit venting of the inner chamber 112 through the fill opening 220 when fluid or vapor pressure in the inner chamber 112 exceeds a predetermined pressure, for example, 3 or 5 psi.
When in a fill position, the fill cover 204 has moved in an opening direction about the pivot 217 to an open position. The fill port 220 can be accessed to fill the receptacle. Continued application of force on the cover operating lever 219 maintains the fill port 220 in an open position. When the operating lever 219 is released or allowed to return, the cover spring 218 acts to close the fill port 220.
When the fill cover 204 is in the open position, the atmosphere inside the receptacle is open to the outside atmosphere through the fill port 220 alone which can allow for efficient and clean filling of the receptacle therethrough with a pour port 224 of the valve body 202 sealed.
In reference to
In the illustrated embodiment, the pour valve assembly includes an actuator 228, a pour valve spring 230, a slide shaft 232, a pair of shaft O-rings 234, a pivot segment 236, a slotted spring pin 238, a valve cup 240, a pour valve gasket 242, and a pour spout seat 244, which is formed on the body 202 in the illustrated embodiment but which may alternatively be a separate part connected to the body 202.
An angled outlet flange 246 is connected to a face 248 of the body and forms the outlet flange 212. As shown, an angle, α (alpha), is defined between two opposing faces of the angled outlet flange 246. The angle α can be any suitable angle. For example, in some embodiments, the angle α can be no greater than 90°. In yet other embodiments, the angle α can be no greater than 45°.
The pour valve assembly 206 is shown in an open, pour position in
The pouring valve passage 222 of the body 202 includes a narrowed portion that aligns with a channel 250 of the slide shaft 232 when the pour valve assembly 206 is in an open position. The pouring valve passage 222 is fluidly connected to the inner chamber 112 of the can 100 through a vent opening 120 in the dome 106 (see
Although the can 100 is functionally similar to the safety receptacle described in U.S. Pat. No. 7,152,764 (the '764 patent), the valve body 202 includes structural differences over prior designs that help its function, manufacturability and service life as is hereinafter described. In the device described in the '746 patent and shown, for example, in
A perspective view of the valve body 202 is shown in
The main passage 252 has a generally cylindrical shape having a centerline 258. The pouring valve passage 222 of the valve body 202, which slidably accepts the pour valve assembly 206 as shown in
When liquid is poured from the inner chamber 112, fluid passes through the flame arrestor 216 and enters the main passage 252. From the main passage 252, the fill opening 220 of which is blocked during pouring by the fill cover 204 (shown in
Other features and elements may be used with the can 100, that can facilitate its use. For example, as described in more detail in the '764 patent, bars may be used to protect the top of the can 100 and the valve assembly 200 from impact. Further, a clamp may be used that secures the fill cover 204 with a thumbscrew to prevent unintentional opening. Such clamp assembly can include a thumbscrew, a cover hold-down bracket, a pair of fusible links, and a pair of S-hooks. The cover hold-down bracket may further include a threaded opening therein to retain the thumbscrew and a pair of tabs for respectively mounting fusible links thereto about a first opening thereof. One end, S-hooks can be respectively attached to the fusible links by operative engagement with a second opening of the fusible links. The mounting plate can include a pair of ears for respectively securing the other end of the S-hooks thereto. Each fusible link can be made from a plurality of portions that are soldered together, for example. The fusible links can be constructed such that they will fuse when the ambient temperature is above a selected temperature, 165° F., for example, to thereby sever the link such that the clamp assembly is detached.
The clamp assembly can be fixed in position with the thumbscrew secured against the tip of the post extending from the fill cover to prevent the trigger from being able to move the fill cover assembly to the open position, for facilitating safe transportation of the safety can, for example. The trigger can be operated to place the valve assembly in a pour position with the clamp assembly mounted to the fill cover assembly.
When not in use, the clamp assembly can be rotated about the ears of the mounting plate to thereby reduce the risk of loss or damage to the clamp assembly and to facilitate its use. The clamp assembly can be rotated to a stored position wherein the thumbscrew is set such that it is retained in a dimple of the seat. The trigger can be operated in the normal fashion to move the valve cover assembly to an open position.
In other embodiments, a safety can according to principles of the present disclosure can be similar in some respects, construction and features to the safety containers disclosed in U.S. Pat. Nos. 6,390,153; 6,772,918; and 7,152,764, said patents being incorporated herein in their entireties by this reference.
All references, including publications, patent applications, and patents, cited herein are hereby incorporated by reference to the same extent as if each reference were individually and specifically indicated to be incorporated by reference and were set forth in its entirety herein.
The use of the terms “a” and “an” and “the” and similar referents in the context of describing the invention (especially in the context of the following claims) are to be construed to cover both the singular and the plural, unless otherwise indicated herein or clearly contradicted by context. Recitation of ranges of values herein are merely intended to serve as a shorthand method of referring individually to each separate value falling within the range, unless otherwise indicated herein, and each separate value is incorporated into the specification as if it were individually recited herein. All methods described herein can be performed in any suitable order unless otherwise indicated herein or otherwise clearly contradicted by context. The use of any and all examples, or exemplary language (e.g., “such as”) provided herein, is intended merely to better illuminate the invention and does not pose a limitation on the scope of the invention unless otherwise claimed. No language in the specification should be construed as indicating any non-claimed element as essential to the practice of the invention.
Preferred embodiments of this invention are described herein, including the best mode known to the inventors for carrying out the invention. Of course, variations of those preferred embodiments will become apparent to those of ordinary skill in the art upon reading the foregoing description. The inventors expect skilled artisans to employ such variations as appropriate, and the inventors intend for the invention to be practiced otherwise than as specifically described herein. Accordingly, this invention includes all modifications and equivalents of the subject matter recited in the claims appended hereto as permitted by applicable law. Moreover, any combination of the above-described elements in all possible variations thereof is encompassed by the invention unless otherwise indicated herein or otherwise clearly contradicted by context.
This application claims the benefit of priority to U.S. Provisional Patent Application No. 61/309,345, filed on Mar. 1, 2010, and entitled, “Safety Can,” which is incorporated in its entirety herein by this reference.
Number | Name | Date | Kind |
---|---|---|---|
1687120 | Blanchard | Oct 1928 | A |
2172142 | Lebus | Sep 1939 | A |
2335195 | Packer | Nov 1943 | A |
3727807 | Flider | Apr 1973 | A |
3729122 | Flider | Apr 1973 | A |
3729129 | Fletcher et al. | Apr 1973 | A |
3794235 | Flider | Feb 1974 | A |
3811605 | Flider | May 1974 | A |
3927797 | Flider | Dec 1975 | A |
4063667 | Flider | Dec 1977 | A |
4065024 | Atwell | Dec 1977 | A |
4138037 | Zehr | Feb 1979 | A |
4249563 | Shaw | Feb 1981 | A |
4280679 | Shaw | Jul 1981 | A |
4458711 | Flider | Jul 1984 | A |
4460010 | Paravigna et al. | Jul 1984 | A |
4489860 | Flider | Dec 1984 | A |
4491251 | Pratz et al. | Jan 1985 | A |
4492319 | Cooper | Jan 1985 | A |
4529099 | Zerrer | Jul 1985 | A |
4552288 | Flider | Nov 1985 | A |
4597504 | Witt | Jul 1986 | A |
4645099 | Gillispie et al. | Feb 1987 | A |
4662544 | Gillispie | May 1987 | A |
4682627 | Cooper et al. | Jul 1987 | A |
4690308 | Cavanaugh et al. | Sep 1987 | A |
4819794 | Silverstein et al. | Apr 1989 | A |
4856664 | Gillispie et al. | Aug 1989 | A |
4881647 | Schiemann | Nov 1989 | A |
4941403 | Cimenti | Jul 1990 | A |
4950082 | Carlson | Aug 1990 | A |
4969571 | Bartz | Nov 1990 | A |
4978004 | Silverstein et al. | Dec 1990 | A |
5056691 | Tolbert | Oct 1991 | A |
5226574 | Durinzi, Jr. | Jul 1993 | A |
5249693 | Gillispie et al. | Oct 1993 | A |
5295610 | Levison | Mar 1994 | A |
D350806 | Cooper | Sep 1994 | S |
D358330 | Kahl | May 1995 | S |
5462169 | Dygert et al. | Oct 1995 | A |
5485942 | Foster | Jan 1996 | A |
5551454 | Goncalves | Sep 1996 | A |
5553750 | Foster | Sep 1996 | A |
5564608 | Cooper | Oct 1996 | A |
D376540 | Boumil | Dec 1996 | S |
5597097 | Morris | Jan 1997 | A |
5601211 | Foster | Feb 1997 | A |
D380682 | Robinson | Jul 1997 | S |
5660204 | Piotrowski et al. | Aug 1997 | A |
5660292 | Scholfield | Aug 1997 | A |
5662249 | Grosse | Sep 1997 | A |
5671868 | Herr | Sep 1997 | A |
5683007 | Scholfield | Nov 1997 | A |
5746359 | Stanek et al. | May 1998 | A |
5833094 | Willis | Nov 1998 | A |
5897021 | Babcock | Apr 1999 | A |
5961006 | Dunham et al. | Oct 1999 | A |
5966743 | Flann | Oct 1999 | A |
5967370 | Nettles et al. | Oct 1999 | A |
6003735 | Strecker | Dec 1999 | A |
6006959 | Naden et al. | Dec 1999 | A |
6056005 | Piotrowski et al. | May 2000 | A |
6176474 | Stanek et al. | Jan 2001 | B1 |
6196255 | Poillucci | Mar 2001 | B1 |
6244457 | Piotrowski et al. | Jun 2001 | B1 |
6283320 | Patch | Sep 2001 | B1 |
6331586 | Thielen et al. | Dec 2001 | B1 |
6390153 | Flider et al. | May 2002 | B1 |
6772918 | Mack, Jr. | Aug 2004 | B2 |
7152764 | Mack, Jr. | Dec 2006 | B2 |
20040221920 | Ferguson et al. | Nov 2004 | A1 |
Number | Date | Country |
---|---|---|
WO2009102887 | Aug 2009 | WO |
Entry |
---|
ISA/US International Search Report and Written Opinion in PCT/US2011/026690, May 5, 2011. |
Eagle Manufacturing Company (Wellsburg, West Virginia), internet pages and photographs of various Type-I safety cans, publicly available in the U.S. prior to Oct. 7, 2002, 5 pages. |
Number | Date | Country | |
---|---|---|---|
20120048895 A1 | Mar 2012 | US |
Number | Date | Country | |
---|---|---|---|
61309345 | Mar 2010 | US |