Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B08—CLEANING
  • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
  • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
  • B08B3/02—Cleaning by the force of jets or sprays
  • B08B3/026—Cleaning by making use of hand-held spray guns; Fluid preparations therefor
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
  • A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
  • A61L2/02—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using physical phenomena
  • A61L2/04—Heat
  • A61L2/06—Hot gas
  • A61L2/07—Steam
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B08—CLEANING
  • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
  • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto 
  • B08B9/08—Cleaning containers, e.g. tanks
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B08—CLEANING
  • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
  • B08B2203/00—Details of cleaning machines or methods involving the use or presence of liquid or steam
  • B08B2203/005—Details of cleaning machines or methods involving the use or presence of liquid or steam the liquid being ozonated
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B08—CLEANING
  • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
  • B08B2230/00—Other cleaning aspects applicable to all B08B range
  • B08B2230/01—Cleaning with steam

Definitions

• the present invention relates to a method of sanitizing bottled water dispensers and a device for sanitizing bottled water dispensers. More particularly, the present invention relates to a method of sanitizing a bottled water dispenser with steam and a device for sanitizing a bottled water dispenser with steam.
• Bottled water dispensers are found in enormous numbers throughout the world to provide a safe and healthy source of drinking water. Such dispensers are commonly found in, for example, workshops, offices, reception rooms, stores, and other public areas, as well as private residences. As the public grows more health conscious and increasingly aware of the benefits of consuming purified drinking water, the number of bottled water dispensers continues to grow.
• a bottled water dispenser can develop bacteria, algae, and other impurities inside the fluid passageways of the dispenser. Absent regular cleaning and sanitizing of the fluid passageways, such impurities can end up in the drinking water dispensed from the dispenser.
• bottled water dispensers come in many varieties. Most dispensers are designed to accept plastic containers (e.g., 5 gallon bottles) containing spring or purified water that are installed on the dispenser in an inverted orientation. Although the designs of bottled water dispensers currently on the market widely vary, most dispensers include certain standard water-contacting components that require regular cleaning and sanitizing. For example, conventional dispensers generally include a reservoir designed to maintain a supply of water ready to be dispensed from the reservoir via an outlet conduit including a faucet (i.e., dispensing valve). Indeed, some dispensers include a reservoir designed to maintain water at multiple temperatures. Such reservoirs often include a cooling element designed to maintain water at a chilled temperature in a particular section of the reservoir.
• a faucet i.e., dispensing valve
• the reservoir may also include a separate section for maintaining water at room temperature (i.e., cook temperature).
• Some dispensers further include a heating element to provide hot water in a particular section of the reservoir.
• Water dispensers designed to dispense water of multiple temperatures generally have a reservoir divided into several sections and have an outlet conduit including several faucets (i.e., hot, cold, and/or cook faucets)
• Bottled water dispensers also generally include a receiving component that provides an inlet conduit to enable flow of water from an interior of the inverted water bottle into the reservoir and to enable flow of air from the reservoir into the interior of the inverted water bottle.
• the receiving component supports at least a portion of the weight of the inverted water bottle, while in other dispensers the weight of the inverted water bottle is supported by other components, such as a cover plate of the dispenser.
• the receiving component is often equipped with a no-spill system designed to provide a substantially contamination-free flow path for water from the inverted water bottle to the water reservoir.
• Such systems generally permit a user of the water dispenser to install and remove a filled water bottle without spilling water from the water bottle.
• U.S. Patent No. 5,413,152 discloses an exemplary no-spill system, the disclosure of which is incorporated herein by reference.
• the receiving component of many no-spill systems may include a feed probe designed to couple with a special closure on the water bottle to provide a contamination-free flow path from the interior of the water bottle to the reservoir.
• the receiving component may also include a seal member to provide a seal between the receiving component and an interior of the reservoir. By sealing the receiving component with the interior of the reservoir, the no-spill system helps to prevent air-born impurities from contaminating the water in the reservoir.
• Such no-spill systems often also include a separate air conduit that enables outside air to communicate with the reservoir and the interior of the inverted water bottle.
• the air conduit may include a conventional air filter to prevent air-born impurities from entering components of the water dispenser via the air conduit.
• all water-contacting components should be cleaned and sanitized on a regular basis.
• such water-contacting components can include at least the inlet conduit, the reservoir, and the outlet conduit including the faucets.
• the air conduit should also be regularly cleaned and sanitized when included on the particular dispenser.
• One conventional technique for cleaning bottled water dispensers is a washing method.
• the components requiring cleaning are removed from the dispenser and cleaned in a washing machine approved for commercial kitchens.
• This method has numerous disadvantages.
• the washing method is labor intensive since components of the dispenser have a tendency to become stuck and are often difficult to remove and reinstall.
• the washing method may not be practicable to remove the air conduit from the dispenser to wash it.
• Another conventional cleaning technique is a chemical method.
• the components requiring cleaning may be removed from the bottled water dispenser.
• the components may then be cleaned with a bactericidal chemical and rinsed with pure water.
• the chemical method is labor intensive, has a risk of contamination of the components during reinstallation, and may not be satisfactory for dispensers having air conduits. Also, it may be difficult to know when the bactericidal chemical has been completely rinsed from the components.
• the possibility of failing to adequately rinse chemicals from the dispenser components is a significant downside to this method since a primary purpose of the bottled water dispenser is to provide pure and natural water, free of contaminants.
• An additional cleaning method is a swap-out method.
• this method the components requiring cleaning are removed and replaced with new components.
• This method is labor intensive, environmentally unfriendly, and costly since the used components are often discarded.
• this method like the previous two, has a risk of contamination of the components during reinstallation.
• Yet another cleaning method is an ozonation method. This method involves flushing the fluid passageways of the dispenser with ozonated water. However, this method requires special equipment and sometimes is not completely effective.
• the invention includes a method of sanitizing a bottled water dispenser with steam.
• the method may include transporting a portable boiler to a location of a bottled water dispenser.
• the method also may include generating steam in the portable boiler at the location of the bottled water dispenser, and flowing steam through an outlet of the portable boiler.
• the method may further include flow coupling the outlet of the portable boiler with an opening of the bottled water dispenser, wherein the opening leads to a fluid flow path of the bottled water dispenser.
• the method may additionally include flowing steam into the fluid flow path through the opening of the bottled water dispenser, and maintaining steam flow through at least a portion of the fluid flow path for a time period sufficient to sanitize the portion of the fluid flow path.
• the method may further include transporting the portable boiler to a location of a different bottled water dispenser, and sanitizing at least a portion of a fluid flow path of the different bottled water dispenser.
• the method may include flow coupling an outlet of a portable boiler with a nozzle, flow coupling a reservoir of a bottled water dispenser with an adapter configured to removably seal with an opening of the reservoir, and flow coupling the nozzle with an inlet of the adapter.
• the invention includes a device for sanitizing a bottled water dispenser with steam.
• the device may include a housing and a heating element configured to generate steam in the housing.
• the housing and the heating element could be a portion of a portable boiler.
• the device may further include an outlet of said housing configured to dispense steam from said housing.
• the device may also include a nozzle adapted to engage an opening of a bottled water dispenser leading to a fluid flow path. The nozzle is optionally designed to flow couple the outlet of the housing with the opening of the bottled water dispenser to thereby cause a sanitizing steam environment within the fluid flow path of the bottled water dispenser.
• Fig. 1 illustrates an embodiment of a device for sanitizing a bottled water dispenser
• Fig. 2 is a schematic cross-sectional view of an embodiment of the nozzle and the guard illustrated in Fig. 1 ;
• Fig. 3 is a schematic cross-sectional view of an alternate embodiment of the nozzle and the guard illustrated in Fig. 1 ;
• Fig. 4A is a schematic view of the guard shown in Figs. 2 and 3;
• Fig. 4B is a schematic cross-sectional view of the guard shown in Fig. 4A cut along line A-A;
• Fig. 4C is a schematic view of a first side of the guard shown in Figs. 4A and 4B;
• Fig. 4D is a schematic view of a second side of the guard shown in Figs. 4A, 4B, and 4C;
• Fig. 5 is a schematic view of a first embodiment of an adapter for coupling with a bottled water dispenser
• Fig. 6 is an exemplary illustration of a prior art bottled water dispenser for use in connection with the invention.
• Fig. 7 is a view of the prior art bottled water dispenser of Fig. 6 with the water bottle removed;
• Fig. 8 is a view of a receiving component of the prior art bottled water dispenser of Figs. 6 and 7;
• Fig. 9 is a partial-schematic cross-sectional view of a nozzle and a receiving component of the prior art bottled water dispenser shown in Figs. 6- 8;
• Fig. 10 is a view of a second embodiment of an adapter for coupling with a bottled water dispenser.
• Fig. 11 is a view of a third embodiment of an adapter for coupling with a bottled water dispenser.
• a device for sanitizing a bottled water dispenser with steam may include a boiler 110 for generating steam and a steam tube 120.
• the boiler 110 may be portable. Alternatively, the boiler 110 could be a provided at a particular location, and the bottled water dispenser could be transported to the boiler 110.
• the portable boiler 110 may be, for example, a portion of a portable wallpaper stripper.
• the portable boiler 110 may include a housing 130 and a heating element configured to generate steam in the housing 130.
• the heating element may be, for example, a 2,300 Watt electrical heating element provided in the housing 130.
• the steam generated by the portable boiler 110 may be about 100°C, although the actual temperature of the steam may vary depending on the local atmospheric pressure.
• the steam could also be slightly superheated (i.e., higher temperature than boiling water).
• the housing 130 may include an outlet 140 configured to couple (directly or indirectly) with the steam tube 120.
• the housing 130 may also includes a fill opening 160 and a closure 162 on the fill opening 160 to facilitate filling of the housing 130 with liquid water.
• the housing 130 may be filled with up to about 4 liters or more of liquid water for conversion to steam.
• the amount of time required for the portable boiler 110 to begin producing steam may vary.
• the portable boiler 110 may take up to approximately 15 minutes to begin producing steam.
• the portable boiler 110 may be capable of generating steam in a matter of seconds.
• the portable boiler 110 also may optionally include a pressure relief valve 150 to prevent pressure from building up in the housing 130.
• the steam tube 120 has a first end 122 and a second end 124.
• the first end 122 may be designed to couple with the outlet 140 of the portable boiler 110.
• the steam tube 120 may be a flexible hose; however, the steam tube could also be a rigid or semi-rigid tube.
• the device 100 may not include a steam tube 120 and the outlet 140 of the portable boiler 110 may be configured to flow couple with an opening of a bottled water dispenser without use of a steam tube.
• Figs. 6 and 7 are views of an exemplary prior art bottled water dispenser that could be used in accordance with the invention.
• bottled water dispensers come in many varieties and the example shown in the drawings and described herein is merely for illustrative purposes.
• the dispenser 10 may include a cabinet 20 and a cover plate 30 on an upper portion of the cabinet 20.
• the dispenser 10 may also optionally include a receiving component 40 coupled with a reservoir of the dispenser 10.
• the reservoir may hold a supply of water for dispensing.
• the dispenser 10 may be configured to dispense water directly from a water bottle through a conduit optionally capable of heating or cooling the water prior to dispensing.
• Fig. 8 shows a view of the receiving component 40 removed from the dispenser 10.
• the receiving component 40 may include a seal member 92 for sealing the receiving component 40 with an interior of the reservoir of the dispenser 10.
• the receiving component 40 may also include a tubular feed probe 50 having openings 52.
• the receiving component 40 also optionally includes an air filter 60 on an end of an air conduit 62 enabling air flow between the reservoir and outside of the dispenser 10.
• the dispenser 10 may further include an outlet conduit enabling flow of water from the reservoir.
• the outlet conduit may include a first outlet conduit 70 and a second outlet conduit 72.
• the first outlet conduit 70 may include a first dispensing valve 74.
• the first outlet conduit 70 for example, may be coupled with a section of the reservoir configured to provide chilled water.
• the second outlet conduit 72 may include a second dispensing valve 76.
• the second outlet conduit 72 for example, may be coupled with a section of the reservoir configured to provide one of hot water and room temperature water.
• Fig. 2 shows a schematic cross-sectional view of a nozzle 200 and a guard 300, similar to the nozzle and the guard illustrated in Fig. 1.
• the nozzle 200 may be configured to direct steam flowing from the steam tube 120 in at least a portion of a fluid flow path of the bottled water dispenser 10.
• the fluid flow path of the dispenser 10 may include at least the reservoir, the feed probe 50, the first and second outlet conduits 70, 72, and the air conduit 62.
• the fluid flow path may include various combinations of these components, and/or other components of the bottled water dispenser.
• the nozzle 200 may be optionally adapted to couple with one or more of the feed probe 50, the first and second outlet conduits 70, 72, and the outlet end of the air conduit 62.
• the nozzle 200 may include a first portion 210 and a second portion 220.
• the first portion 210 includes a first end 212 of the nozzle 200
• the second portion 220 includes a second end 222 of the nozzle 200.
• the first portion 210 may be tapered so that the first portion 210 has a smaller cross-section adjacent to the first end 212 of the nozzle 200.
• the second portion 220 may be tapered so that the second portion 220 has a smaller cross-section adjacent to the second end 222 of the nozzle 200.
• the first end 212 of the nozzle 200 may be configured to couple with the second end 124 of the steam tube 120.
• the second end 222 of the nozzle 200 may be configured to couple with the receiving component 40 of the dispenser 10.
• Fig. 9 shows a partial-schematic cross-sectional view of the nozzle 200 flow coupled with the feed probe 50 of the receiving component 40.
• the second portion 220 of the nozzle 200 has an inner wall 226 having a diameter greater than a diameter of an outer wall 54 of the feed probe 50.
• the inner wall 226 and the outer wall 54 define a gap 56.
• the nozzle 200 may be adapted to direct steam flowing from the nozzle 200 into the gap 56 and into the openings 52 of the feed probe 50 to thereby sanitize the outer wall 54 and an interior 58 of the feed probe 50.
• the gap 56 may be about 3 mm so as to assure that the nozzle 200 does not contact the probe 50 and thereby cause contamination between the nozzle 200 and the probe 50.
• the nozzle 200 may also be adapted so that steam flowing from the nozzle 200 provides a pressure in the gap 56 sufficient to force steam from the gap 56 into the openings 52 of the feed probe 50.
• the nozzle 200 may be sized so that the feed probe 50 fits at least substantially inside the second portion 220 of the nozzle 200 and the second end 222 of the nozzle 220 is able to contact a bottom surface 82 of a cylindrical portion 80 of the receiving component 40.
• the nozzle 200 may optionally include a seal member 290 (e.g. O-ring) on the second portion 220 sized to seal against a wall 84 of the cylindrical portion 80.
• the device 100 may include an adapter designed to couple with the nozzle 200 for sealing against the wall 84.
• the adapter could be an annular member including an O-ring groove machined along a circumference with an O-ring in the groove.
• the adapter may be adapted to couple with both the nozzle 200 and the wall 84 of the cylindrical portion 80.
• the adapter and the nozzle 200 may be a single piece of unitary construction.
• the nozzle 200 may be configured to seal with a wall 86 of the receiving component 40.
• the device 100 may include an adapter 700 sized to couple with the wall 86 of the receiving component 40.
• the adapter 700 may include an annular part 702 having an inlet 704 for receiving the nozzle 200.
• the inlet 704 may include a groove 706 for receiving a seal member that may be on the nozzle 200.
• the annular part 702 may also include a groove 708 capable of including a seal member for sealing the wall 86.
• the annular part 702 of the adapter 700 may be sized to removably couple with an interior of a reservoir of a bottled water dispenser.
• the device 100 may also include a guard 300 configured to protect a hand of an operator of the device 100 from contact with high temperature steam flowing from the nozzle 200.
• the guard 300 may include a receiving portion 310 adapted to receive the second end 124 of the steam tube 120.
• the guard may also include a cylindrical portion 320 having a first end 322 and a second end 324.
• the first end 322 may include the receiving portion 310, and the second end 324 may include an opening.
• An exterior of the cylindrical portion 320 may advantageously provides a gripping part for an operator of the device 100.
• the cylindrical portion 320 may be tapered from a larger cross-section adjacent to the second end 324 to a smaller cross-section adjacent to the first end 322.
• the receiving portion 310 may include a tubular member 330 extending through the first end 322 of the cylindrical portion 320.
• the tubular member 330 has an inlet end 332 and an outlet end 334.
• the inlet end 332 may be adapted to couple with the second end 124 of the steam tube 120.
• the outlet end 334 may be adapted to couple with the first end 212 of the nozzle 200.
• the inlet end 332 may include a threaded section 336 adapted to couple with a corresponding threaded section on the second end 124 of the steam tube 120.
• Fig. 3 shows an alternate embodiment for coupling the nozzle 200 and the guard 300.
• the outlet end 334 of the tubular member 330 may be optionally adapted to couple with the second end 222 of the nozzle 200.
• the device 100 may be used to apply steam from the first end 212 of the nozzle 200 to, for example, the cabinet 20 of the dispenser 10. Applying steam from the first end 212 of the nozzle 200 may advantageously provide a higher velocity stream than the second end 222. The higher velocity stream may be useful for cleaning, for example, the exterior of the dispenser 10.
• the guard 300 may also include a shield member 340 on the cylindrical portion 320.
• the shield member 340 may extend in a direction substantially parallel to a direction of flow of steam from the second end 124 of the steam tube 120 when the steam tube 120 is coupled with the tubular member 330 of the guard 300.
• the shield member 340 may provide an operator of the device 100 with additional protection from the steam.
• the guard 300 may be configured so that an air barrier is formed between an interior 326 of the cylindrical portion 320 of the guard 300 and an exterior 240 of the nozzle 200 when the guard 300 and the nozzle 200 are coupled together.
• the air barrier may provide a layer of thermal insulation between the cylindrical portion 320 and the nozzle 200 to further protect an operator of the device 100 from heat generated by the steam.
• the guard may further include one of more slots 350 and the nozzle may further include one or more tabs 230 to facilitate coupling of the nozzle 200 and the guard 300.
• the slots 350 and the tabs 230 may be configured so that the tabs 230 fit into the slots 350 to couple the guard 300 and the nozzle 200.
• the tabs 230 may lock in the slots 350 when an operator inserts the tabs 230 into the slots 350 and turns the nozzle 200 relative to the guard 300.
• Fig. 5 shows a schematic view of an adapter 400 removably coupled with a reservoir 500.
• the reservoir 500 is a schematic representation of a reservoir of the type commonly provided in bottled water dispensers.
• the adapter 400 may be used in connection with sanitizing bottled water dispensers that do not include a no-spill system or other inlet components capable of easily coupling with the nozzle 200 to create a steam environment in the fluid flow path of the bottled water dispenser.
• the adapter 400 may be configured to removably seal with an opening of the reservoir 500. (See also, the adapter 700 of Fig. 11 described supra.)
• the adapter 400 may include an annular member having an O-ring groove machined along the circumference.
• the adapter 400 may further include a seal member 420 for sealing with an interior of the reservoir 500.
• the seal member 420 may be an O-ring sized to fit in an O-ring groove machined along the circumference of the adapter 400.
• the adapter 400 may also include an inlet 410 configured to couple with the second end 222 of the nozzle 200.
• the adapter 400 and the nozzle 200 may be a single piece of unitary construction.
• Fig. 10 is a view of an adapter 600 for removably coupling the nozzle 200 with one of the dispensing valves 74, 76 of the bottled water dispenser 10.
• the adapter 600 may include an annular member 602 having a first portion 604 for receiving the dispensing valves 74, 76 and a second portion 606 for receiving the nozzle 200.
• the first portion 604 may include a groove 608 capable of including a seal member (e.g., O-ring).
• the seal member may be configured to provide a substantially sealed connection between the adapter 600 and the dispensing valves 74, 76.
• the second portion 606 may also include a groove 610 for receiving a seal member that may be on the nozzle 200. Alternatively, the second portion 606 may be configured so that the nozzle 200 can be press-fit into the second portion 606.
• the adapter 600 and the nozzle 200 may be a single piece of unitary construction.
• the present invention includes a method of sanitizing the bottled water dispenser 10 with steam.
• the method may include transporting the portable boiler 110 to a location of a bottled water dispenser 10.
• a distributor of bottled water may transport the portable boiler 110 to a customer having a bottled water dispenser requiring sanitizing.
• the bottled water dispenser 10 could be transported to a boiler at a particular location.
• the method may also include generating steam in the portable boiler 110, and flow coupling the outlet 140 of the portable boiler 110 with an opening of the bottled water dispenser 10 leading to a fluid flow path of the bottled water dispenser.
• the portable boiler 110 could be flow coupled to any one of the feed probe 50, the first outlet conduit 70, the second outlet conduit 72, and the air conduit 62.
• the method may further include flowing steam into the fluid flow path of the dispenser 10 through one of the openings set forth above, and maintaining steam flow through at least a portion of the fluid flow path for a time period sufficient to sanitize the portion of the fluid flow path.
• steam may be flowed through an opening in the reservoir, through the openings 52 of the feed tube 50, through one of the first and second outlet conduits 70, 72, and/or through the air conduit 62.
• the steam flow may be maintained in one or more of the reservoir, the feed tube 50, the first and second outlet conduits 70, 72, and/or the air conduit 62 for a time period sufficient to sanitize therein.
• a minimum time period for maintaining steam flow is at least twenty seconds. In another embodiment, the minimum time period for maintaining steam flow is at least three minutes.
• the method may further include transporting the portable boiler 110 from the location of the bottled water dispenser 10 to a location of a different bottled water dispenser, for sanitizing the fluid flow path of the different bottled water dispenser.
• the method may include using the device 100 provided with various combinations of the optional features of the device 100 described above to sanitize a bottled water dispenser.
• the method may include sanitizing a bottled water dispenser having a feed probe 50 of known outer diameter using the portable boiler 110 with the nozzle 200 flow coupled thereto.
• the nozzle 200 may be adapted so that the inner wall 226 has a diameter greater than a diameter of the outer wall 54 of the feed probe 50 (i.e., internal diameter of nozzle 200 is greater than external diameter of feed probe 50).
• the method may include flow coupling the nozzle 200 and the openings 52 of the feed probe 50 by placing the feed probe 50 at least partially inside the nozzle 200 so that a gap 56 exists between the outer diameter of the feed probe 50 and an inner diameter of the nozzle 200.
• the method may further include flowing steam into the gap 56 and into the openings 52 of the feed probe 50 to thereby sanitize the exterior and interior of the feed probe 50.
• the exterior and interior of the feed probe 50 may be sanitized simultaneously.
• the method may also include flowing steam into the gap 56 to increase pressure in the gap 56 so that steam is forced from the gap 56 into the openings 52 of the feed probe 50.
• the method may further include flow coupling the nozzle 200 and the feed probe 50 by placing the nozzle 200 over the feed probe 50 so that the second end 222 of the nozzle 200 contacts the bottom surface 82 of the cylindrical portion 80.
• the nozzle 200 may be tapered so that an inner diameter of the nozzle 200 adjacent to the second end 222 of the nozzle 200 is only slightly larger than the outside diameter of the probe 50 .
• the nozzle 200 may include a seal member for providing a seal 280 between the outer wall 54 and the inner wall 226 adjacent to the second end 222 of the nozzle 200.
• the nozzle 200 may have a larger inner diameter a short distance from the second end 222, so that the gap 56 exists between the outer wall 54 and the inner wall 226.
• Providing the seal member 280 may facilitate a pressure increase in the gap 56 to force steam into the openings 52 of the feed probe 50.
• the method may include assembling certain parts of the device 100.
• the operator of the device 100 may couple the portable boiler 110 with the steam tube 120.
• the steam tube 110 may be coupled with both the guard 300 and the nozzle 200.
• the operator may fill the housing 130 of the portable boiler 110 with water.
• the operator may fill the housing 130 with hot water from the dispenser to decrease the amount of time required for the portable boiler 110 to begin producing steam.
• the steam may be provided in the fluid flow path of the dispenser for at least twenty seconds, and may be provided for three minutes or more. Temperature in the fluid-contacting components may reach a minimum of from about 75°C to about 100°C to assure that the components are sanitized (i.e., algae, bacteria, and/or other live contaminants are killed and/or removed).
• the air filter 60 may be removed from the air conduit 62 and at least one of the dispensing valves 74, 76 may be opened.
• the dispensing valves 74, 76 may be maintained in an open position by using a specially designed clip and/or any other suitable device. Removing the air filter 60 and opening the dispensing valves 74, 76 may facilitate the flow of steam throughout the fluid flow path.
• the method may include coupling the nozzle 200 with one of the dispensing valves 74, 76 to provide steam in one of the first and second outlet conduits 70, 72 via an adapter such as the adapter 600 shown in Fig. 10.
• the dispensing valves 74, 76 may be maintained in the open position using a suitable clip or other device. Steam provided in the outlet conduit (e.g., first and second outlet conduits 70, 72) may be allowed to flow into the reservoir, and from the reservoir into the air conduit 62 and the feed probe 50.
• the method may include coupling the nozzle 200 with the outlet end of the air conduit 62.
• the air filter 60 may be removed before coupling the nozzle 200 with the air conduit 62.
• steam may be provided in the air conduit 62 and allowed to flow into the reservoir, and from the reservoir into the feed probe 50 and into the first and second outlet conduits 74, 76.
• the method may include sanitizing a bottled water dispenser that does not include a receiving component including a feed probe 50.
• this embodiment of the method may include flow coupling the outlet 140 of the portable boiler 110, flow coupling the reservoir 500 with the adapter 400 to removably seal the adapter 400 with the reservoir 500, and flow coupling the nozzle 200 with the inlet 410 of the adapter 400. After flowing steam from the nozzle 200 into the reservoir 500 via the adapter 400, the adapter 400 may be removed from the reservoir 500.
• This embodiment of the method may alternately include use of the adapter 700 of Fig. 11 when the adapter 700 is sized to removably couple with an interior of a reservoir of a bottled water dispenser.
• the method may include flow coupling the second end 222 of the nozzle 200 with the outlet end 334 of the tubular member 330, and applying steam from the first end 212 of the nozzle 200 to an exterior of the dispenser 10 (e.g., the cabinet 20 and cover plate 30) to clean and sanitize the exterior of the dispenser 10.
• the exterior of the dispenser 10 may be sanitized either before or after sanitizing the components defining the fluid flow path.
• a water bottle 90 installed on the dispenser 10 may be removed from the dispenser 10 (see Fig. 6).
• the operator may then drain water from the reservoir, and sanitize the device according to one of the embodiments of the method described above.
• the operator may also replace one or more parts on the water dispenser 10.
• the operator may replace the air filter 60 with a new air filter and/or replace the receiving component 40 with a new receiving component.
• the operator may reinstalls a water bottle (either same or new) on the dispenser 10.
• the dispenser 10 may advantageously allow bottled water distributors and others to conduct dispenser sanitizing on site, without the use or harsh chemicals or the need to substantially disassemble the dispenser.
• the method may be used in connection with a water dispenser that dispenses water from sources other than a water bottle.
• the method may include sanitizing a drinking fountain and/or a point-of-use water dispenser.
• Such dispensers may be permanently plumbed into a water source or may have a reservoir that is manually filled with water.
• the method may include sanitizing a potable liquid dispenser that dispenses a liquid other than water.
• the potable liquid dispenser may dispense a fruit drink.
• Couple means linked together in some respect.
• the term “couple” is not intended to require direct physical contact between components coupled.
• the term “flow couple” means placed in flow communication.

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• Health & Medical Sciences (AREA)
• Veterinary Medicine (AREA)
• Mechanical Engineering (AREA)
• Animal Behavior & Ethology (AREA)
• General Health & Medical Sciences (AREA)
• Public Health (AREA)
• Epidemiology (AREA)
• Engineering & Computer Science (AREA)
• Life Sciences & Earth Sciences (AREA)
• Apparatus For Disinfection Or Sterilisation (AREA)
• Devices For Dispensing Beverages (AREA)
• Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
• Cleaning By Liquid Or Steam (AREA)
• Filling Of Jars Or Cans And Processes For Cleaning And Sealing Jars (AREA)
• Non-Alcoholic Beverages (AREA)

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Citations (6)

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• 2000
  • 2000-01-21 NO NO20000335A patent/NO311078B1/no not_active IP Right Cessation
• 2001
  • 2001-01-19 WO PCT/NO2001/000018 patent/WO2001052908A1/en active Application Filing
  • 2001-01-19 AU AU30634/01A patent/AU3063401A/en not_active Abandoned
  • 2001-01-22 RU RU2002122400/15A patent/RU2002122400A/ru unknown
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  • 2001-01-22 CZ CZ20022450A patent/CZ20022450A3/cs unknown
  • 2001-01-22 IL IL15076101A patent/IL150761A0/xx unknown
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  • 2001-01-22 HU HU0204244A patent/HUP0204244A2/hu unknown
  • 2001-01-22 AU AU31035/01A patent/AU3103501A/en not_active Abandoned
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