EP0890003B1 - Dispensing device - Google Patents

Dispensing device Download PDF

Info

Publication number
EP0890003B1
EP0890003B1 EP97916841A EP97916841A EP0890003B1 EP 0890003 B1 EP0890003 B1 EP 0890003B1 EP 97916841 A EP97916841 A EP 97916841A EP 97916841 A EP97916841 A EP 97916841A EP 0890003 B1 EP0890003 B1 EP 0890003B1
Authority
EP
European Patent Office
Prior art keywords
block
dispenser
holder
toilet bowl
product
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
EP97916841A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0890003A1 (en
Inventor
Guy R. Thompson
Stuart J. Campbell
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SC Johnson and Son Inc
Original Assignee
SC Johnson and Son 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 SC Johnson and Son Inc filed Critical SC Johnson and Son Inc
Publication of EP0890003A1 publication Critical patent/EP0890003A1/en
Application granted granted Critical
Publication of EP0890003B1 publication Critical patent/EP0890003B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D9/00—Sanitary or other accessories for lavatories ; Devices for cleaning or disinfecting the toilet room or the toilet bowl; Devices for eliminating smells
    • E03D9/02—Devices adding a disinfecting, deodorising, or cleaning agent to the water while flushing
    • E03D9/03—Devices adding a disinfecting, deodorising, or cleaning agent to the water while flushing consisting of a separate container with an outlet through which the agent is introduced into the flushing water, e.g. by suction ; Devices for agents in direct contact with flushing water
    • E03D9/032—Devices connected to or dispensing into the bowl
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D9/00—Sanitary or other accessories for lavatories ; Devices for cleaning or disinfecting the toilet room or the toilet bowl; Devices for eliminating smells
    • E03D9/02—Devices adding a disinfecting, deodorising, or cleaning agent to the water while flushing
    • E03D2009/024—Devices adding a disinfecting, deodorising, or cleaning agent to the water while flushing using a solid substance

Definitions

  • the present invention relates to a device for dispensing a product into the bowl of a water closet (also known as toilet or lavatory).
  • a device for dispensing a product into the bowl of a water closet also known as toilet or lavatory
  • a device for dispensing a product into the bowl of a water closet also known as toilet or lavatory
  • a device adapted to be hooked under the rim of a toilet bowl to interrupt the flow of flush water as the toilet is flushed and to dispense the product directly into the toilet bowl.
  • Dispensing devices of the type with which the present invention is concerned are well-known.
  • a device is disclosed in US-A-4 777 670.
  • the product which is dispensed is held in the device in the form of a solid block of water-soluble material which dissolves gradually in use.
  • the block of product is introduced into a moulded container of plastics material, incorporating the necessary suspending means, at the time of manufacture of the device.
  • US-A-4 777 670 discussed above mentions the possibility of introducing a fresh block of product into the dispenser. However, in order to do this it is necessary to remove the used device from the toilet rim and then to release a catch in order to hinge upwards an upper cover.
  • dispensers on the market are capable of being hinged to open them once they have been removed from the toilet bowl. Nevertheless many dispensers are discarded after use although they are capable of being re-used, leading to a waste of the plastics material used to produce the mouldings.
  • WO93/16242 A discloses a dispenser for attaching to the rim of a toilet bowl. It acknowledges the problem arising from disposal of dispensers, and proposes to overcome this by providing a dispenser which can be refilled while remaining attached to the rim. The dispenser is hinged open by pressing on a lug to release a catch which holds the dispenser closed. The dispenser can then be opened, a fresh block inserted, and the dispenser then closed again. However, it is still necessary to manipulate the dispenser itself.
  • US-A-2034619 discloses a dispenser having a reload opening in its top wall.
  • DE-A-3002833 discloses a dispenser having a reload opening in a side wall.
  • a dispenser for using a flow of water during a toilet flush to dispense a dissolvable product from a solid block of said product into a toilet bowl comprises
  • Dispensers for attaching to the rim of toilet bowls are initially sold with a product block which has been loaded in the factory, usually by inserting into an open moulding which is then closed to give the loaded dispenser.
  • the dispenser is then packaged, for example in a transparent blister pack, for sale.
  • the packaged dispenser is displayed for sale together with replacement blocks for insertion in the dispenser when the original block, inserted in the factory, has been used.
  • the invention has been presented as an article, namely the dispenser. It is also a method of treating a flushable toilet bowl having a rim which comprises the steps of
  • the dispenser may contain a product block when it is attached to the rim of the toilet bowl, so that the step of loading a product block mentioned above is a step of reloading the dispenser.
  • the dispenser may be attached to the rim in an empty (unloaded) state and the first loading of product block into the dispenser takes place when the dispenser is in place in the toilet bowl.
  • the relative positions of different parts of the dispenser are described as if the dispenser was in place in a toilet bowl, with the side towards the bowl as the rear, the dimension generally parallel to the toilet rim as the length, the dimension in the generally downward direction as the depth, and dimensions in the direction from front to rear being described as width.
  • the suspending means may be a clip attached to one or both ends of the holder so as not to impede access to the reload opening.
  • a single clip at the end of the holder will need to be relatively large and rigid to maintain the holder in position against the turning forces generated by the off-centre suspension of the holder.
  • the provision of a clip at each end will result in a device requiring more material for its construction. Because the toilet bowl rim is curved, providing clips at two points may require the provision of a more complicated design of holder to match the curve of the bowl. It is therefore usual in dispensing devices for attachment to the rim of a toilet bowl to provide a single longitudinally central suspending means, as in US-A-4 777 670.
  • the reload aperture is highly desirable for the reload aperture to be such as to make it difficult or impossible for the product block to be removed from the holder after it has been inserted, to prevent the user coming into contact with a product block covered in possibly harmful solution. It is therefore preferred to use a slab shaped product block whose width in the forward -rearward direction is small relative to the length and depth of the block, for example whose width is not more than 50% of the length of the block and to use a reload aperture in the form of a slot whose length and width are only sufficiently greater than the width and thickness of the block to allow the block to be inserted without difficulty into the holder.
  • the reload opening has a width (i.e.
  • the reload opening is a slot extending longitudinally along the holder with the width of the slot not greater than 25 mm, more preferably not greater than 10 mm .
  • the holder may have an internal horizontal cross-sectional area which varies with depth.
  • internal horizontal cross-sectional area we mean the area of a horizontal plane bounded by the internal surface of the holder.
  • the holder has a minimum internal horizontal cross-sectional area which is not less than the cross-sectional area of the loading opening, e.g., more preferably not less than 1.5 times the cross-sectional area of the loading aperture, for example not less than 2 times the cross-sectional area of the loading opening. This minimum cross-sectional area may be at the bottom of the holder.
  • the maximum internal horizontal cross-sectional area is not more than 5 times the cross-sectional area of the loading opening, more preferably not more than 4 times the cross-sectional area of the loading opening.
  • the maximum cross-sectional area may be in the upper part of the holder.
  • the reload opening will most preferably be positioned on the holder so that a replacement block which is inserted into the opening will fall into the holder and will be retained by gravity.
  • the reload opening will thus generally be on the upper part of the holder.
  • Some known designs of dispenser have suspension means which project forward from the connection with the holder before curving back to the rear to engage the toilet rim. In order to avoid any interference between the suspension means and the replacement block which would interfere with the insertion of the block it may be desirable to provide the reload opening on an upper surface of the holder which is inclined to the horizontal when the holder is in use so that the product block may be inserted from above but at an angle to the vertical which keeps it clear from the suspending means.
  • the reload opening is positioned so that the block is inserted at an angle to the vertical it may be desirable to shape the holder so that the path through which the block travels when loaded into the holder has a decreasing angle to the vertical. This may be achieved by providing a holder with a front surface which is concave (viewed from the front).
  • the baffle provides additional protection to the user and, in particular, protection to children who may seek to obtain access to the product block in use.
  • the baffle is preferably biassed to return to obstruct the reload opening when the product block is fully inserted into the holder.
  • the displaceable baffle member may extend across the reload opening so as to block it at the exterior of the holder. Alternatively it may extend into the interior of the holder provided that it obstructs access to the block when the block has been fully inserted.
  • a fixed baffle extending into the interior of the holder may be provided.
  • the fixed baffle is sized and positioned so as to allow insertion of a replacement block but to obstruct removal of a loaded block after it has been inserted into the loading aperture.
  • a fixed baffle is particularly useful where a large reload opening is provided to receive large blocks.
  • it may be desirable to provide a reload aperture which allows a block to be inserted by movement from the centre of of the toilet bowl in a substantially horizontal direction and which has a fixed baffle extending substantially horizontally from the lower edge of the reload opening such that a block may be slid over it into the interior of the dispenser but fingers cannot bend round the baffle to obtain access to the block.
  • the displaceable baffle is preferably a flexible baffle.
  • the flexible baffle may be at least one flap which is attached along an edge of the reload opening so as to move (preferably resiliently) inwards towards the interior of the dispenser as the block is inserted and which is (preferably resiliently) urged back to its original position when the block is fully inserted.
  • the depth of the holder within which the block is received is preferably greater than the depth of the block and the width of the flap to allow sufficient clearance for the flap to return.
  • a plurality of independently attached flaps is provided so that all the flaps must be independently moved simultaneously to gain access to the block. This will be difficult for a small child.
  • the flexible baffle comprises a plurality of flaps then the flaps may be spaced along the reload opening with gaps separating the flaps.
  • Devices for attaching to toilet rims for dispensing products into toilet flush water are well-known , and the present invention may be applied to a variety of devices with different ways of regulating the flow of dissolved product from the device, e.g. using siphons.
  • One preferred form of the invention has at least one flush inlet opening at the upper end to allow water to enter, and at least one flush discharge opening at the rear side of the holder for the release of dissolved product into the flush,
  • Materials suitable for incorporation into products blocks for use in rim-fitting toilet flush dispensers are well-known. It is preferred to use materials which enable blocks of small size but high effectiveness to be used as this enables the size of the reload opening to be minimized.
  • Dispensers are usually sold loaded with a product block and it is often convenient to mould the dispenser as a single moulding having a hinge by which two parts of the moulding can be hinged together to form the block holder and having a retaining catch to hold the parts together when they are hinged towards each other.
  • the initial block is loaded into the dispenser when it is in an open position and the two parts are hinged together to close it.
  • the retaining catch is normally made sufficiently weak to allow it to be reopened by normal finger pressure without the use of tools. This allows the holder to be reopened for reloading.
  • the holder is openable by rotation about a hinge but is secured by a child-resistant retaining catch, i.e. a catch which cannot easily be opened by finger pressure without the use of a tool or excessive force.
  • a dispenser according to the invention is shown generally at (1). It is moulded in one piece from polypropylene. It comprises a holder (2) for receiving a block of product (3) for release into the flushing water during flushing of a toilet bowl. A clip (4) is attached to the upper surface of the holder (1) to enable it to be suspended from the rim of a toilet bowl.
  • a rear portion (5) of the holder will be adjacent to the toilet bowl. This rear portion is provided with a plurality of flush inlets (6) extending round the top and rear face of the rear portion for admitting flush water into the holder (2) and with four longitudinally extending slots (7) which serve as flush discharge outlets to release solution, produced by the action of the flush water on the block, into the bowl.
  • a pair of slots (7) is provided on either side of the centre of the holder.
  • the holder has a front portion (8) which in use faces into the centre of the toilet bowl. It is provided with an upper forwardly and downwardly inclined face (9) which is forward of the clip (4) and a lower rearwardly and downwardly inclined face(10).
  • the upper face (9) is provided with a slot (11) which acts as a reload opening for inserting a replacement product block (2) when the originally installed block has been exhausted.
  • the slot is provided with a plurality of flaps (12) independently hinged at the forward edge of the slot.
  • the dispenser is produced as a one piece moulding, as shown in Figure 2, and the two parts are folded together after insertion of a product block during the manufacturing process.
  • the two parts (5) and (8) are held together by a catch comprising a barbed tongue (13) engaging with a recess (14) to provide a childproof catch which cannot readily be opened.
  • the dispenser In use the dispenser is clipped to the rim of a toilet bowl so that the rearward portion (5) is held against the toilet bowl. As flushing takes place the initially installed block is exhausted. A replacement block may be installed without removing the dispenser from the toilet bowl by pressing the lower edge of the block against the flaps so as to depress them into the interior of the holder.
  • the block may be provided with a wrapper or gripping device (not shown) to avoid contact between the fingers and the block.
  • the importance of avoiding contact between the fingers and the block may be reduced because the block will be dry prior to installation. Because the slot (11) is formed in a face angled away from the horizontal,the risk of the clip (4) interfering with introduction of the block is reduced.
  • the resilient hinged flaps formed in the polypropylene moulding will spring back to their original position.
  • the width of the slot is typically less than 10mm, which will make it difficult to insert a finger down the slot to touch the block whose upper surface is below the slot by a distance greater than the width of the flaps.
  • FIG 4 shows an alternative form of dispenser, in which the reload opening is in the form of a relatively wide slot (11).
  • the slot has a horizontal baffle (15) extending into the interior of the holder from the lower edge of the slot (11), and hinged flaps (12) moulded into the holder, hinged to the upper edge of the slot (11) and extending downwardly and forwardly to obstruct the space between the upper edge and the fixed baffle (15). Only two hinged flaps (12) are shown
  • a replacement block may be inserted into the reload opening (11) by sliding it along the horizontal baffle, displacing the flexible baffle, and allowing the block to fall through the space between the fixed baffle and the rear wall of the holder.

Landscapes

  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Water Supply & Treatment (AREA)
  • Bidet-Like Cleaning Device And Other Flush Toilet Accessories (AREA)
EP97916841A 1996-03-26 1997-03-20 Dispensing device Expired - Lifetime EP0890003B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB9606275 1996-03-26
GBGB9606275.7A GB9606275D0 (en) 1996-03-26 1996-03-26 Dispensing device
PCT/US1997/004417 WO1997036065A1 (en) 1996-03-26 1997-03-20 Dispensing device

Publications (2)

Publication Number Publication Date
EP0890003A1 EP0890003A1 (en) 1999-01-13
EP0890003B1 true EP0890003B1 (en) 2001-12-19

Family

ID=10790992

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97916841A Expired - Lifetime EP0890003B1 (en) 1996-03-26 1997-03-20 Dispensing device

Country Status (12)

Country Link
EP (1) EP0890003B1 (pt)
AR (1) AR006428A1 (pt)
AT (1) ATE211208T1 (pt)
AU (1) AU705410B2 (pt)
BR (1) BR9708148A (pt)
DE (1) DE69709326T2 (pt)
DK (1) DK0890003T3 (pt)
ES (1) ES2165599T3 (pt)
GB (1) GB9606275D0 (pt)
NZ (1) NZ332050A (pt)
WO (1) WO1997036065A1 (pt)
ZA (1) ZA972616B (pt)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD912761S1 (en) 2019-06-07 2021-03-09 S. C. Johnson & Son, Inc. Toilet rim-block
USD914131S1 (en) 2019-06-07 2021-03-23 S. C. Johnson & Son, Inc. Toilet rim-block holder
USD923139S1 (en) 2019-06-07 2021-06-22 S. C. Johnson & Son, Inc. Set of toilet rim-blocks

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29811823U1 (de) * 1998-06-08 1999-10-21 Yankee Polish Lueth Gmbh & Co WC-Körbchen
CN1271047A (zh) * 1999-04-19 2000-10-25 莎拉李/迪有限公司 悬垂于抽水马桶边缘的净化和清新设备
WO2015075902A1 (ja) * 2013-11-21 2015-05-28 日本曹達株式会社 トイレ用洗浄剤容器

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2034619A (en) * 1934-11-26 1936-03-17 Harry W Hoffman Deodorizer
DE3002833A1 (de) * 1980-01-26 1981-07-30 Globol-Werk Gmbh, 8858 Neuburg Halterung fuer wc-desodorantien
DE3639686A1 (de) * 1986-11-20 1988-05-26 Henkel Kgaa Wc-koerbchen
IT227415Y1 (it) * 1989-10-30 1997-10-03 Re Le Vi Spa Contenitore porta-deodorante,in particolare pere vasi igienici.

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD912761S1 (en) 2019-06-07 2021-03-09 S. C. Johnson & Son, Inc. Toilet rim-block
USD914131S1 (en) 2019-06-07 2021-03-23 S. C. Johnson & Son, Inc. Toilet rim-block holder
USD923139S1 (en) 2019-06-07 2021-06-22 S. C. Johnson & Son, Inc. Set of toilet rim-blocks

Also Published As

Publication number Publication date
BR9708148A (pt) 1999-07-27
EP0890003A1 (en) 1999-01-13
ES2165599T3 (es) 2002-03-16
NZ332050A (en) 1999-07-29
AU705410B2 (en) 1999-05-20
AR006428A1 (es) 1999-08-25
DE69709326D1 (de) 2002-01-31
DK0890003T3 (da) 2002-04-02
ZA972616B (en) 1997-10-20
ATE211208T1 (de) 2002-01-15
DE69709326T2 (de) 2002-07-18
GB9606275D0 (en) 1996-05-29
AU2535397A (en) 1997-10-17
WO1997036065A1 (en) 1997-10-02

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