1. Field of the Invention
This invention relates generally to bottle filling devices, specifically to bottle filling devices for home made beer and other liquid carbonated beverages.
2. Discussion of Prior Art
It is well known in the home made beer (homebrew) market to utilize a specialized filler to transfer carbonated beer from a pressurized keg into a bottle for portability, gifts, entering into competitions and the like. The alternate to filling from a keg is natural carbonation in the bottle; but this leaves undesirable yeast sediment in the bottom of each bottle. Simply pouring the beer into a bottle from a tap is possible, but too much carbonation is lost from foaming leaving the beer flat. In addition, the presence of oxygen (O2) in the bottle during transfer causes staling of the beer adversely affecting the flavor and shelf life. The common solution to this is a device called a counter-pressure bottle filler (CPBF), which is very common in both the commercial bottling and homebrew industry. A typical homebrew counter-pressure bottle filler is a simplified manual version of the commercial equivalents intended for rapid sequential bottle filling. U.S. Pat. No. 5,150,740 (Yun), U.S. Pat. No. 3,757,835 (Copping), and U.S. Pat. No. 3,450,175 (Norwood) show several commercial high speed fillers. Numerous suppliers such as Foxx Equipment, MoreBeer™ and others manufacture and sell these traditional CPBF fillers. Also, many homebrewers make their own fillers. The typical process to fill a bottle utilizing a homebrew type counter-pressure bottle filler (CPBF) requires a very cumbersome process of turning several valves in a prescribed sequence in order to purge the bottle of air (O2), pressurize the bottle to the same pressure as the keg (to reduce foaming and carbonation loss), turn on the beer flow valve, gradually open the CO2 relief valve to allow beer to flow, turn the beer valve off at the correct fill level, relieve the CO2 pressure in the bottle, and remove the filler assembly, and lastly cap the bottle. If any operations are missed or done in the incorrect order, the bottle could be too foamy (lost carbonation), not at the correct fill level, inadequately purged of air or accidentally sprayed out of the bottle leaving an undesirable mess. The pressurization of the bottle is necessary to prevent foam creation (loss of carbonation) from a sudden pressure change whereby the dissolved CO2 would come out of solution and create foaming. This sudden pressure loss is due to the sharp turns from numerous fittings and elbows, in addition to the throttling nature of valves that would otherwise cause excessive foaming if the bottle was not pressurized prior to filling.
Accordingly is an object of this invention to overcome the cumbersome nature of current homebrew counter-pressure bottle fillers.
Yet another object of this invention is to provide a filler that reduces or eliminates sharp bends and valves in the beer flow path.
Yet another object of this invention is to provide a filler that does not require pressurization of the bottle to function.
Yet another object of this invention is to provide a filler that is easy to sanitize.
Yet another object of this invention is to provide a filler that has few cavities for bacteria to collect or mold to grow.
Yet another object of this invention is to provide a filler that is easy to connect and intuitive to use.
Referring to prior art
Referring to
Still referring to
The bottle assembly 10 includes a first or gas or CO2 tube 60, has a preestablished inside bore or size or diameter formed about an axis 61, a preestablished outside size or diameter, and a length extending between a first end 62 and a second end 64. In this application, the first tube 60 is made of a stainless steel material, but as an alternative could be brass or copper or another material being resistant to corrosion. The first end 62 of the first tube 60 has a flared portion 66 positioned thereon and the second end 64 has a seat portion 68 positioned thereon. Spaced a preestablished distance from the second end 64 is a groove 70. The groove 70 has a preestablished width and depth. The depth of the groove 70 forms a preestablished diameter “D1” about the first tube 60. A nut 72 is also a part of the bottle filler assembly 10. The nut 72 has an external surface 74, which in this application has a hexagonal configuration, but as an alternative could be square or include a serrated surface. A first end 76 of the nut 72 has an internally threaded portion 78 and a second end 79 of the nut 72 has a sealing portion 80 formed thereon. The nut 72 is positioned on the first tube 60. As the nut 72 is tightened, the sealing portion 80 of the nut 72 is sealingly connected with the flared portion 66 of the first tube 60 and the flared portion 66 of the tube is sealingly connected with the flared portion 48 of the elbow 40 by tightening the internally threaded portion 78 of the nut 72 with the second externally threaded end 18 of the elbow 40.
A second or liquid or beer tube 90 is included in the bottle filler assembly 10. The second tube 90 is made of a stainless steel material, but as an alternative could be brass or copper or another material being resistant to corrosion. The second tube 90 has a preestablished inside bore, size or diameter, a preestablished outside size or diameter, and a preestablished length extending between a first end 92 and a second end 94. The preestablished outside size or diameter slidably fits within the preestablished inside bore, size or diameter of the first tube 60. And, the preestablished outside size or diameter of the second tube 90 slidably and sealingly fits within the bore or hole 54 of the elbow 40. The first end 92 of the second tube 90 has a flared portion 96 thereon. A groove 98 is spaced a preestablished distance from the second end 94 of the second tube 90 and is interposed the first and second ends 92, 94. The groove 98 has a preestablished width and depth. The preestablished depth of the groove 98 forms a preestablished diameter “D2” about the second tube 90. The second end 94 of the second tube 90 is positioned within the second end 64 of the first tube 60, slid along the inside bore or diameter, slid along the axis 52 and through the bore or hole 54 of the elbow 40 until the groove 98 extends beyond the body 42 of the elbow 40.
The bottle filler assembly 10 includes a spring or biasing means 100 and a trigger mechanism 102. The spring 100 and the trigger mechanism 102 is made of stainless steel, but as an alternative, at least the trigger mechanism 102, could be brass or copper or another material being resistant to corrosion. The spring 100 has a preestablished inside diameter which slidably attaches over the preestablished size or diameter of the first tube 60, and a preestablished spring rate. The spring 100 has a preestablished length. The trigger mechanism has a generally “U” shaped configuration including a base member 104, a first end member 106 and a second end member 108. The base member 104 has a rectangular configuration and includes a length and a width. The length of the base member 104 is greater that the length of the spring 100 and the width of the base member 104 is greater than or about twice that of the size or diameter of the first tube 60. The first end member 106 extends at a 90 degree angle from the base member 104 and has an end 110 which extends from the base a preestablished distance. The first end member 106 includes a first side 112 and a second side 114. A slot 116 extends from the first side 112 and is positioned a preestablished distance from the end 110. The slot 116 include a pair of angling side members 118 extending from the first side 112 and terminating within a cylindrical portion 120. The cylindrical portion 120 has a size or diameter being substantially identical to the size or diameter “D2” of the groove 98 in the second tube 90. The cylindrical portion 120 is positioned about a center and is formed by a radius forming a circumference. The center is spaced from the base member 104 a preestablished distance. The pair of angling side members 118 intersect the circumference of the cylindrical portion 120 and the intersection thereof forms a circumference being greater than 180 degrees. Extending from the circumference toward the second side 114 is a notch 122. The notch 122 has a preestablished width and length. The notch 122 is spaced from the second side 114 a preestablished distance. A portion of the first end member 106 interposed the first side 112 and one of the pair of angling side members 118 has been removed. A radiused portion 124 extends between one of the pair of angling side member 118 and the end 110. The second end member 108 of the trigger mechanism 102 extends at a 90 degree angle from the base member 104 and has an end 126. The second end member 108 includes a first side 128 and a second side 130. Positioned in the second end member 108 is a bore 132. The bore 132 is spaced from the base a distance being substantially equal to the preestablished distance the center of the circumference of the cylindrical portion 120 is spaced from the base member 104. Extending from the end 126 toward the base member 104 is a trigger portion 134. The trigger portion 134 is necked down from the first side 128 and the second side 130; however, as an alternative the trigger need not be necked down. An anti-slip covering 136 is formed about the trigger portion 134. With the slot 116 of the first end 106 pointed toward the nut 72, the bore 132 of the trigger mechanism 102 is positioned over the preestablished size or diameter of the first tube 60 and the trigger mechanism 102 is slid toward the nut 72.
The bottle filling mechanism 10 further includes a sealing mechanism or beer valve assembly 140. The sealing mechanism 140 has a generally “U” shaped configuration. The sealing mechanism 140 has a base portion 142 having a first end 144 and a second end 146 positioned within a width. A pair of fingers 148 extends from the first end 144 at a 90 degree angle. The pair of fingers 148 have an accurate configuration and are formed to define a cylindrical circumference having a preestablished diameter being substantially equal to the preestablished diameter “D1” about the first tube 60. A slit 150 is interposed the pair of fingers 148 and extends from the first end 144 toward the second end 146 of the base portion 142 a preestablished distance. The slit 150 is positioned generally equally spaced within the width of the base portion 142. An attaching end 152 extends from the second end 146 at a 90 degree angle. The attaching end 152 has an end 154 and a pair of sides 156. The end 154 has a radiused portion 157 and the pair of sides 156 each have a notch 158 therein. The radiused portion 156 and the notch 158 in each of the pair of sides 156 are positioned from the second end 146 of the base portion 142 a preestablished distance. Each of the base portion 142, the pair of fingers 148 and the attaching end 152 is made of a stainless steel material, but as an alternative could be brass or copper or another material being resistant to corrosion. A seal member 160 is made of a silicone material, but could be of an alternative sealing material, and is attached to the end 154. The seal member 160 has a flat end 162 and a spherical end 164. A recess 166 is formed intermediate the flat end 162 and the spherical end 164. The recess 166 is positioned about the radiused portion 156 and the notches 158 securing the seal member 160 to the attaching end 152 in a prefixed relationship. With the flared portion 96 of the second tube 90 in contact with the second end 64 of the first tube 60, the sealing mechanism 140 is attached within the bottle filler assembly 10. The pair of fingers 148 are positioned within the groove 70 of the first tube 60 and the sealing member 160 is precisely locate to be capable of being in sealing relationship with the flared portion 96 of the second tube 90.
The bottle filling assembly 10 will require a first or beer hose 170, has a preestablished inner diameter being about the same or about the equivalent of the preestablished outside size or diameter of the second tube 90 and has a preestablished length. The first hose 170 has a first end 172 which is attached to the second end 94 of the second tube 90 and extends over and past the second end 90. A second end 174 of the first hose is attached to the outlet 2 of the keg 1 in a conventional manner. A second or CO2 hose 176 has a preestablished inner diameter and length. The second hose 176 has a first end 178 connected to the first internally threaded end 16 of the CO2 valve 12 in a conventional manner. A second end 180 of the second hose 176 is connected to the CO2 tank 3 in a conventional manner.
Many ramifications of the invention are possible. For example, a ball valve, foot operated valve, or other style of valve can be used in lieu of the push valve used for the CO2 valve 12 as shown in the drawings. In lieu of elbow 40, a “Tee” could be used with a close fitting hole in a cap nut, or compression ferrule to seal against beer tube 90 and still provide sufficient clearance for free movement of beer tube 90. Numerous fitting types and combinations are possible in lieu of flare type fittings such as ferrule type compression fittings and pipe threads which accomplish the same functionality. Also, many ramifications of the beer valve seating geometry are possible to adequately seal and provide a non turbulent flow of the beer such as cones, bugle shapes, o-ring and similar. The beer valve assembly 140 and trigger mechanism 102 can also be fastened to their respective tubes via numerous means such as welding, clamping, interference fits etc., or incorporated as an integral part of the tube. Yet another method would be to employ a mechanism similar to existing “push-type” bottle fillers, well known in the art, in lieu of the aforementioned beer valve assembly 140. This would be used in conjunction with the CO2 tube 60 to add the CO2 bottle purging feature. It is also possible to install a small seltzer bottle CO2 cartridge on CO2 valve 12 in lieu of the second or CO2 hose 176 from a larger CO2 tank typically used in beer dispensing. Often, these CO2 seltzer type assemblies include a valve and pressure reducing mechanism wherein CO2 valve 12 can be eliminated. In addition to CO2, it is also possible to use other commonly acceptable purging gasses such as N2 or argon etc. The filler can be used with either a carbonated or non carbonated liquid. When using with a carbonated liquid, the length of hose between the keg and the filler should be increased, about 10 feet in length, to reduce undesirable foaming. Lastly, it is possible to use this filler for other fluids such as wine, beverages, or chemicals where purging of the container is desirable prior to filling.
Referring to the prior art drawing of
Referring to
Prior to operation, the bottle filling assembly 10 is connected as follows. Attach the first end 172 of the first hose 170 to the second end 94 of the second tube 90. Do not place the first end 172 of the first hose 170 more than ⅜ of an inch past the second end 94. Attach the second end 174 of the first hose to the outlet 2 of the keg 1 in a conventional manner. Placing the first hose 170 further on the second tube 90 makes disassembly more difficult. Connect the first end 178 of the second hose 176 to the first internally threaded end 16 of the CO2 valve 12 in a conventional manner. And, connect the second end 180 of the second hose 176 to the CO2 tank 3 in a conventional manner. And, place the sealing mechanism 140, the second end 62 of the first tube 60 and the flared portion 96 of the second tube 90 within the bottle 5 until the sealing member 140 contact a bottom of the bottle 5 to be filled.
In operation, with the second hose 176 affixed to CO2 valve 12 of bottle filler assembly 10 the pressure in the keg 1 should approximately ½ that of the dispensing pressure (about 4-8 PSI). An external pressurizing device may be require to apply such a pressure to the keg. The second hose 176 is interposed the second tube 90 and the outlet 2 of the keg 1 and experimentation has shown that the long length of hose (approximately 1 Oft) of small diameter hose (approximately 3/32″ ID) will reduce the pressure gradually from line restriction and minimize foaming, although other lengths and diameters may provide satisfactory results. The valve actuator 22 is depressed moving the CO2 valve 12 into an open position 24 in which a flow of CO2 occurs. After several seconds the oxygen or air in the bottle is purged by CO2 gas filling the bottle 5 with CO2. Since no stopper 9′ or bleed valve 6′ is utilized in this embodiment, the oxygen or air naturally flows out of the top of bottle 5 with no intervention. The trigger mechanism 102 is then quickly actuated allowing beer (wine, soda or other product) to flow into the bottle 5. In actuality, the trigger portion 134 is moved toward the nut 72 and the spring 100 is compressed. The cylindrical portion 120 within the groove 98 cause the flared portion 96 of the second tube 90 to move away from the spherical end 164 of the seal member 160, unseating the sealing mechanism 140 and allowing a flow of beer to occur. When the bottle 5 is completely full, trigger mechanism 102 is then quickly released stopping the flow of beer. The bottle filler assembly 10 is then removed from the bottle 5. The volume displaced by the bottle filler assembly creates an ideal bottle fill level (head space). With sealing mechanism 140 placed mid-way into the remaining head space, CO2 valve 12 is momentarily depressed to clear any oxygen from the head space, providing a completely oxygen free bottle. The bottle 5 is then capped.
To clean the bottle filler assembly, simply disassemble and soak in sanitizing solution, no scrubbing or brushing is required. Since no valves or fittings with interstitial cavities are exposed to the beer, contamination from bacteria and mold are all but eliminated.
Thus the reader will see that the improved bottle filler assembly provides an extremely intuitive, simple method to fill bottles with little foaming or oxidation. The bottle filler assembly is also very simple to clean, assemble and sanitize. Once connected, one actuator or button is pressed for CO2 purge, and a second trigger mechanism is pressed for bottle fill, so the operation is very simple and intuitive. The lack of sharp turns and throttling type valves in the present invention eliminates these sources of foaming. The long length of hose gradually reduces the beer pressure, also reducing foaming. In addition, eliminating the need to pressurize the bottle forgoes the complicated valves, fittings and stoppers that complicate the operation and introduces areas of possible bacterial contamination. While my description contains many specificities, these should not be construed as limitations of the scope of the invention, but rather as an exemplification of one preferred embodiment thereof.
Number | Name | Date | Kind |
---|---|---|---|
2307223 | Kerr | Jan 1943 | A |
3450175 | Norwood | Jun 1969 | A |
3757835 | Copping | Sep 1973 | A |
4151867 | Wilhere | May 1979 | A |
5150740 | Yun | Sep 1992 | A |
Number | Date | Country | |
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20070023100 A1 | Feb 2007 | US |