WO2000043319A1 - Cruche de filtration d'eau a remplissage sous pression - Google Patents

Cruche de filtration d'eau a remplissage sous pression Download PDF

Info

Publication number
WO2000043319A1
WO2000043319A1 PCT/US2000/001671 US0001671W WO0043319A1 WO 2000043319 A1 WO2000043319 A1 WO 2000043319A1 US 0001671 W US0001671 W US 0001671W WO 0043319 A1 WO0043319 A1 WO 0043319A1
Authority
WO
WIPO (PCT)
Prior art keywords
cover
filter
opening
fluid
pitcher
Prior art date
Application number
PCT/US2000/001671
Other languages
English (en)
Inventor
Jeffrey Eldon Fish
Malcolm Daniel Poirier
Kevin Peter Mcgrath
Bruce Scott Williamson
Original Assignee
Kimberly-Clark Worldwide, Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kimberly-Clark Worldwide, Inc. filed Critical Kimberly-Clark Worldwide, Inc.
Priority to AU33491/00A priority Critical patent/AU3349100A/en
Publication of WO2000043319A1 publication Critical patent/WO2000043319A1/fr

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
    • C02F1/003—Processes for the treatment of water whereby the filtration technique is of importance using household-type filters for producing potable water, e.g. pitchers, bottles, faucet mounted devices
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2307/00—Location of water treatment or water treatment device
    • C02F2307/04—Location of water treatment or water treatment device as part of a pitcher or jug

Definitions

  • the present invention relates generally to a water filtration pitcher, and more particularly to a water filtration pitcher adapted to engage a pressurized fluid source.
  • filtration systems are currently available that assist in reducing the contaminants in water prior to use or ingestion.
  • Such systems may include a replaceable filter positioned within some type of housing such as a bottle, canteen, pitcher, counter- top, faucet-mounted device or the like.
  • a filtration system filter fluid quickly enough to provide filtered fluid in a timely manner to the user.
  • water flowing through the filter may flow at a slower rate than is desired.
  • certain filtering media such as block activated carbon
  • the fluid may be introduced to the filter under increased pressure so that the fluid flows through the filter at a faster rate. In such systems, a user will have access to filtered water in a shorter period of time.
  • Some of the currently available filtering systems provide an indication as to when the useful life of the filter has been reached, and the filter must be replaced. In many systems, it is desirable to provide an indication that a filter has reached the end of its useful life. If a filter is utilized after its effectiveness has diminished, contaminants that have been captured by, and are contained within, the filter may be reintroduced into water flowing through the filter.
  • the present invention is directed to a fluid filtration device including a pitcher having a fluid reservoir.
  • a cover may be provided which is adapted to engage the pitcher.
  • An opening may be disposed in the cover, the opening adapted to sealingly engage a pressurized fluid source such as a kitchen faucet or sprayer so that fluid flows into the opening of the cover and the pitcher under pressure.
  • a filter support member may be releasably attached to the cover so that the filter support member is disposed within the pitcher, the filter support member including at least one aperture through which fluid may exit the filter support member.
  • a filter may be secured within the filter support member so that fluid flowing into the opening of the cover must flow through the filter prior to flowing out of the aperture in the filter support member and into the fluid reservoir.
  • Figure 1 is a perspective view of an embodiment of a filtration system according to the present invention connected to a pressurized source of fluid.
  • Figure 2 is a perspective view of another embodiment of a filtration system according to the present invention.
  • Figure 3 is a perspective view of yet another embodiment of a filtration system according to the present invention.
  • Figure 4 is a perspective view of an embodiment of the cover, filter and filter support member of a filtration system according to the present invention.
  • Figure 5 is a side view of still another embodiment of a filtration system according to the present invention.
  • the present invention is directed to a filtration system 10, an embodiment of which is depicted in Figure 1.
  • the filtration system 10 shown therein includes a receptacle such as a pitcher 12 that may include a reservoir 14, a handle 16 and a spout 20.
  • a cover 18 may be provided that engages an upper portion (or open end) of the pitcher 12 and, in selected embodiments, may engage the pitcher 12 so as to form a watertight seal.
  • the pitcher 12 and/or the cover 18 may be produced from a plastic such as, for example, polyethylene, polyvinylchloride, and polypropylene.
  • a plastic such as, for example, polyethylene, polyvinylchloride, and polypropylene.
  • at least a portion of the pitcher 12 and/or the cover 18 may be produced from a transparent or translucent material such as glass or plastics such as, for example, acrylic, polycarbonate and polyvinylchloride.
  • a fill opening 22 may be formed in the cover 18.
  • the fill opening 22 is adapted to sealingly engage a pressurized source of fluid such as, for example, a faucet or a sprayer.
  • the fill opening 22 adapted to permit fluid to flow into the opening of the cover and through to the pitcher under pressure.
  • a sprayer 26 may engage the fill opening 22 formed in the cover 18.
  • a faucet 32 may also engage the fill opening 22.
  • the faucet 32 may further include an attachment 34 that is adapted to assist engagement of the faucet 32 to the fill opening 22.
  • the attachment 34 may include an extensible portion 36 such as, for example, and expandable and flexible hose.
  • the extensible portion 36 may be lowered to engage the fill opening 22 and, when not in use may be compressed and/or raised so that the attachment 34 does not interfere with subsequent use of the faucet 32.
  • the pressurized fluid source, the attachment 34, and/or the fill opening 22 may be adapted to cause the pressurized fluid source to releasably lock to the fill opening 22.
  • one or more detents 24 may be provided to securely engage the extensible portion 36 of the attachment 34 to the fill opening 22 of the cover
  • the attachment 34 may be pressed into the fill opening 22.
  • the pitcher 12 may then be rotated with respect to the pressurized fluid source so that the detents 24 engage the extensible portion 36.
  • the attachment 34 may be rotated, rather than the pitcher 12.
  • a variety of other mechanisms may be utilized to releasably secure the faucet 32 to the cover 18, such as, for example, flexible lock arms, screw threads, quick disconnect couplings, other snap-fit or press-fit mechanisms, or the like.
  • the cover 18 may further include a filter support member 40.
  • the filter support member 40 may be attached to the cover 18 and/or the pitcher 12 so that the filter support member is suspended in the interior of the pitcher 12 from the underside of the cover 18.
  • the filter support member 40 may include a plurality of apertures 48.
  • the filter support member 40 may be releasably and sealingly attached to the lower surface of the cover 18. In such an embodiment, it may be desirable to position a seal or gasket-like material between the support member 40 and the lower surface of the cover
  • the filter support member 40 may be attached to the lower surface of the cover 18 by a variety of mechanisms, such as, for example flexible lock arms, screws, and the like.
  • a chamber 44 is formed.
  • a filter 46 may be positioned within the chamber 44 so that fluid entering the fill opening 22 must flow through the filter 46 before exiting the filter support member 40 through the apertures 48.
  • Such filtered fluid collects in the reservoir 14.
  • the apertures 48 may include one-way valves so that fluid may only flow out of the apertures 48. In this manner, filtered fluid within the reservoir 14 may not flow back into the filter support member 40.
  • vents may need to be variously positioned in the pitcher 12, the cover 18, and the filter support member 40.
  • a vent 30 is positioned in the cover 18 and may be positioned in the vicinity of the handle 16.
  • the interior of the handle 16 may be in fluid communication with the reservoir 14, thus venting the reservoir 14.
  • FIG. 5 Another embodiment of the present invention is shown in Figure 5.
  • the sprayer 26 engages the fill opening 22 so that the forwardmost end of the sprayer is positioned within the chamber 44 of the filter support member 40.
  • the filter 46 is positioned within the filter support member 40 so that fluid flowing from the sprayer 26 flows onto the filter 46.
  • a vent 30 may be provided in an upper portion of the pitcher 12. The vent 30 may, in certain embodiments, be adapted to permit air to flow out of the pitcher while inhibiting the flow of filtered fluid through the vent 30.
  • an indicator may be provided which indicates when the useful life of the filter 46 has been reached.
  • an indicator suitable for use with the present invention may indicate the number of times the pressurized fluid source has been engaged to the fill opening 22. In such a system, the number of times the fluid source has been engaged to the fill opening 22 or pitcher 12 may be utilized as an approximation of the remaining life of the filter 46. Based on this approximation, a visual or audible indication may be given to a user.
  • the indicator 50 displays a visual indication to convey to the user the amount of fluid (as approximated by the number of times the fluid source has been engaged to the fill opening 22) which has been filtered by the filter 46.
  • the indicator may be reset or replaced.
  • the filter 46 may be replaced with a new filter or may be reused upon reconditioning of the filter 46 to restore its filtering properties.
  • the filter support member 40 may be detached from the lower surface of the cover 18, the filter 46 removed therefrom and a new filter placed within the chamber 44 prior to reattachment of the filter support member 40 to the cover 18.
  • the cover 18 and filter support member may be a single piece, the filter 46 being contained therein. In such embodiments, the cover 18, filter support member 40 and filter 46 may be discarded when the filter 46 has reached the end of its useful life and replaced with a new filter support member, filter and cover.
  • the filter 46 may include a charge-modified nonwoven web, but may alternately include materials such as, for example, block carbon, granular carbon, various membranes, and the like.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Water Treatment By Sorption (AREA)
  • Catching Or Destruction (AREA)

Abstract

La présente invention a trait à un dispositif de filtration de fluide qui comporte une cruche pourvue d'un réservoir de fluide. Un couvercle prévu peut être appliqué sur la cruche. Une ouverture peut être placée dans le couvercle, l'ouverture étant conçue pour entrer en contact hermétique avec une source de fluide sous pression, tel un robinet ou un pulvérisateur de cuisine, de sorte que le fluide s'écoule sous pression par l'ouverture du couvercle. On peut fixer détachable un élément de support de filtre au couvercle, de sorte que l'élément de support de filtre se situe à l'intérieur de la cruche, cet élément de support de filtre comprenant au moins une ouverture par laquelle le fluide peut sortir de l'élément de support de filtre. Un filtre peut être fixé à l'intérieur de l'élément de support de filtre, de sorte que le fluide s'écoulant par l'ouverture du couvercle doit traverser le filtre avant de sortir par l'ouverture de l'élément de support de filtre pour entrer dans le réservoir de fluide.
PCT/US2000/001671 1999-01-26 2000-01-26 Cruche de filtration d'eau a remplissage sous pression WO2000043319A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU33491/00A AU3349100A (en) 1999-01-26 2000-01-26 Water filtration pitcher with pressure fill

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US11726699P 1999-01-26 1999-01-26
US60/117,266 1999-01-26
US48081300A 2000-01-10 2000-01-10
US09/480,813 2000-01-10

Publications (1)

Publication Number Publication Date
WO2000043319A1 true WO2000043319A1 (fr) 2000-07-27

Family

ID=26815118

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2000/001671 WO2000043319A1 (fr) 1999-01-26 2000-01-26 Cruche de filtration d'eau a remplissage sous pression

Country Status (4)

Country Link
AU (1) AU3349100A (fr)
PE (1) PE20010391A1 (fr)
TW (1) TW510809B (fr)
WO (1) WO2000043319A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2196329A (en) * 1986-10-21 1988-04-27 Pre Mac Portable water-purifying devices
US4776956A (en) * 1988-03-24 1988-10-11 Gannaway Richard M Combination water filter and container apparatus
US5190643A (en) * 1992-01-10 1993-03-02 Mr. Coffee, Inc. Water treatment device having means to count times used and limit useage
JPH0568641A (ja) * 1991-09-13 1993-03-23 Toshiba Corp 電気湯沸かし器
WO1996013318A1 (fr) * 1994-10-28 1996-05-09 La.I.Ca. Lavorazione Italiana Casalinghi S.N.C. Di Zamberlan Teresa & C. Recipient pour la filtration de liquides et notamment de l'eau potable
JPH1043028A (ja) * 1996-08-01 1998-02-17 Maruyama Giken:Kk 浄水機能付冷水ポット

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2196329A (en) * 1986-10-21 1988-04-27 Pre Mac Portable water-purifying devices
US4776956A (en) * 1988-03-24 1988-10-11 Gannaway Richard M Combination water filter and container apparatus
JPH0568641A (ja) * 1991-09-13 1993-03-23 Toshiba Corp 電気湯沸かし器
US5190643A (en) * 1992-01-10 1993-03-02 Mr. Coffee, Inc. Water treatment device having means to count times used and limit useage
WO1996013318A1 (fr) * 1994-10-28 1996-05-09 La.I.Ca. Lavorazione Italiana Casalinghi S.N.C. Di Zamberlan Teresa & C. Recipient pour la filtration de liquides et notamment de l'eau potable
JPH1043028A (ja) * 1996-08-01 1998-02-17 Maruyama Giken:Kk 浄水機能付冷水ポット

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 017, no. 388 (C - 1086) 21 July 1993 (1993-07-21) *
PATENT ABSTRACTS OF JAPAN vol. 1998, no. 06 30 April 1998 (1998-04-30) *

Also Published As

Publication number Publication date
AU3349100A (en) 2000-08-07
TW510809B (en) 2002-11-21
PE20010391A1 (es) 2001-04-05

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