WO1993014686A1 - Sponge squeegee combination - Google Patents

Sponge squeegee combination Download PDF

Info

Publication number
WO1993014686A1
WO1993014686A1 PCT/AU1993/000023 AU9300023W WO9314686A1 WO 1993014686 A1 WO1993014686 A1 WO 1993014686A1 AU 9300023 W AU9300023 W AU 9300023W WO 9314686 A1 WO9314686 A1 WO 9314686A1
Authority
WO
WIPO (PCT)
Prior art keywords
implement
block
skin
ribs
ridges
Prior art date
Application number
PCT/AU1993/000023
Other languages
French (fr)
Inventor
Arthur James Fahy
Original Assignee
Fahy Arthur J
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 Fahy Arthur J filed Critical Fahy Arthur J
Priority to US08/244,727 priority Critical patent/US5429678A/en
Priority to AU33391/93A priority patent/AU658479B2/en
Priority to EP93901975A priority patent/EP0623000B1/en
Priority to JP5512789A priority patent/JPH07506734A/en
Priority to DE69306758T priority patent/DE69306758T2/en
Publication of WO1993014686A1 publication Critical patent/WO1993014686A1/en
Priority to NO941976A priority patent/NO941976L/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L13/00—Implements for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L13/10—Scrubbing; Scouring; Cleaning; Polishing
    • A47L13/12—Implements with several different treating devices
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L13/00—Implements for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L13/10—Scrubbing; Scouring; Cleaning; Polishing
    • A47L13/16—Cloths; Pads; Sponges

Definitions

  • THIS INVENTION relates to the washing of extended surfaces open to atmospheric pollution and grime, and is specifically, although not exclusively concerned with hand-cleaning the paint-work of a motor vehicle.
  • the conventional way of cleaning the paint-work of a motor vehicle by hand is to sponge down the paint-work with water, apply a cleaning agent such as a detergent or soap to the paint-work with a sponge and plenty of water wash down the paint-work after cleaning with plenty of water usually supplied by a hose, and finally wiping residual spots of water from the paint work with a chamois leather which removes any free surface water from the paintwork.
  • a cleaning agent such as a detergent or soap
  • An object of the invention is to provide an improved implement for cleaning an extended surface by hand.
  • an implement for cleaning grime from an extended surface susceptible to atmospheric pollution comprises a resiliently-flexible block of relative water-absorbent, spongy material having one face exposed for applying a cleaning solution such as soapy water to the surface to be cleaned, and me opposite face sheathed with a resiliently-flexible, externally-ribbed skin of material which is relatively non-absorbent to water.
  • the implement enables the cleaning solution to be hand-applied by way of the exposed face of the spongy block, and, after the cleaning solution has been washed oft with clean water, residual drops of the water are removed by wiping the ribbed face of the block across the surface.
  • the ribs on the face flex to conform to the contour of the surface beneath the block and act with a squeegee action to provide dams which remove water droplets from the area of the surface over which the ribbed face of the block is passed, so that the water droplets are removed and a clean and virtually drop-free surface emerges from beneath the block.
  • the block has a flat rectangular face on one side, and its opposite side is of generally semi-cylindrical shape and is sheathed with the ribbed skin.
  • the ribs of the skin conveniently extend parallel to one another between opposite end-faces of the block so that they are wiped across the paint surface in a direction which is transverse to the direction in which the ribs extend.
  • the implement works equally well where the ribs are interrupted or are of non-linear shape such as S-shape, or U-shape.
  • ribs in the form of overlapping capital letters spelling out the name of the manufacturer and using the letters in staggered lines provided a satisfactory squeegee action.
  • Whatever shape is chosen for the ribs it is preferred that there is continuous band of the ribbed skin in contact with the paint surface when the water droplets are being wiped off, to prevent the droplets leaving streak-lines on the paint-work behind the implement.
  • the sheath covers the bulk of the generally semi-cylindrical shaped face of the sponge so that the sheath provides a hand-hold for the block and prevents liquid absorbed into the spong from flooding out over the hand of the user when the cleaning solution is being applied.
  • the semi-cylindrical shape of the block facilitates the ability of the block to perform a partly wiping action and partly rolling action, as the user's wrist turns naturally during the wiping movement of the block over the surface being cleaned.
  • FIGURE 1 is a top perspective view of a spongy implement for cleaning a painted surface
  • FIGURE 2 is an under plan view of the implement
  • FIGURE 3 is an end view of the implement, both ends appearing the same;
  • FIGURE 4 is a top plan view showing a further design of ribbing on the sheath
  • FIGURE 5 is a top plan view of an implement with yet another shape of ribbing on the sheath.
  • FIGURE 6 shows the implement of Figure 5 in use wiping surplus water drops from the painted surface of part of a motor vehicle.
  • Figure 1 shows a cleaning implement 1 which is about 215 mm. long, 105 mm. wide and 75 mm. high. It comprises a soft, resiliently flexible, sponge block which is water absorbent and which has a flat rectangular face 3 shown in figure 2.
  • the opposite face of the block is a generally semicylindrical shape to provide a comfortable hand-hold, and is sheathed with a non-absorbent resiliently flexible skin 4 which is 2 mm. thick.
  • the skin 4 is provided with external parallel ribs 5 about 2 mm. high and which have a V- shaped section as shown in figure 3.
  • the block is made from an open-cell foam of soft polyurethane, and the skin 4 is made form closed-cell ethylene vinyl acetate foam.
  • the skin is cemented to the block by a waterproof adhesive which when applied, does not degrade the skin 4 or the surface of the block 2.
  • the ribs 5 provided on the skin 4 can have different shapes without detracting from the usefulness of the invention.
  • the ribs are interrupted to provide short rib sections 6 which are staggered with respect to the lines of short rib sections in the adjacent rib lines.
  • the ribs are formed by S-shape rib sections 7 arranged in lines and staggered with respect to the ribs in neighbouring lines.
  • the rib sections are of C-shape with successive rib sections in each line facing in opposite directions respectively, and the rib sections in adjacent lines being staggered with respect to one another.
  • the block 2 is of parallelepiped shape and has one rectangular face exposed, and the other, opposite, rectangular face and adjacent portions of the longer sides of the block sheathed with the skin which effectively provides two parallel ribs where it extends over the corners at the longer sides of said opposite face.
  • the end faces of the block may also be sheathed with the skin if desired.
  • Figure 6 shows the implement in use to remove water droplets from the painted surface of a motor vehicle body.
  • the vehicle body has a curved contour but the flexibility of the implement enables it to mould itself naturally to the painted surface under hand pressure, so that the ribs provide dams which prevent the water droplets from passing beneath the skin 4 of the implement as it is passed over the wet curved painted surface of the vehicle.
  • the painted surface is thus wiped dry in much the same way as if the water droplets had been removed by a chamois leather using the conventional technique.

Landscapes

  • Cleaning Implements For Floors, Carpets, Furniture, Walls, And The Like (AREA)
  • Cleaning In General (AREA)
  • Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
  • Cosmetics (AREA)
  • Body Washing Hand Wipes And Brushes (AREA)

Abstract

A car-cleaning implement (1) comprises a spongy resiliently-flexible liquid-absorbent block (2) having an exposed face (3) for applying soapy water, and its opposite face sheathed with a thin flexible skin (4) which is not water absorbent and is formed with parallel ribs (5) extending between opposite ends of the block. By inverting the block after washing off the soapy water, the ribbed skin can be used to remove water droplets from the painted surface of the car without streaking.

Description

SPONGE SQUEEGEE COMBINATION
FIELD OF THE INVENTION
THIS INVENTION relates to the washing of extended surfaces open to atmospheric pollution and grime, and is specifically, although not exclusively concerned with hand-cleaning the paint-work of a motor vehicle.
STATE OF THE ART
The conventional way of cleaning the paint-work of a motor vehicle by hand is to sponge down the paint-work with water, apply a cleaning agent such as a detergent or soap to the paint-work with a sponge and plenty of water wash down the paint-work after cleaning with plenty of water usually supplied by a hose, and finally wiping residual spots of water from the paint work with a chamois leather which removes any free surface water from the paintwork.
OBJECTION OF THE INVENTION
An object of the invention is to provide an improved implement for cleaning an extended surface by hand.
SUMMARY OF THE INVENTION
According with the present invention an implement for cleaning grime from an extended surface susceptible to atmospheric pollution, comprises a resiliently-flexible block of relative water-absorbent, spongy material having one face exposed for applying a cleaning solution such as soapy water to the surface to be cleaned, and me opposite face sheathed with a resiliently-flexible, externally-ribbed skin of material which is relatively non-absorbent to water.
The implement enables the cleaning solution to be hand-applied by way of the exposed face of the spongy block, and, after the cleaning solution has been washed oft with clean water, residual drops of the water are removed by wiping the ribbed face of the block across the surface. The ribs on the face flex to conform to the contour of the surface beneath the block and act with a squeegee action to provide dams which remove water droplets from the area of the surface over which the ribbed face of the block is passed, so that the water droplets are removed and a clean and virtually drop-free surface emerges from beneath the block.
PREFERRED FEATURES OF THE INVENTION
In the preferred form of the invention the block has a flat rectangular face on one side, and its opposite side is of generally semi-cylindrical shape and is sheathed with the ribbed skin.
The ribs of the skin conveniently extend parallel to one another between opposite end-faces of the block so that they are wiped across the paint surface in a direction which is transverse to the direction in which the ribs extend. However, it is not essential for the ribs to be continuous. Experiments have shown that the implement works equally well where the ribs are interrupted or are of non-linear shape such as S-shape, or U-shape.
As one possible example of the shape of ribs which is useable it was found that ribs in the form of overlapping capital letters spelling out the name of the manufacturer and using the letters in staggered lines provided a satisfactory squeegee action. Whatever shape is chosen for the ribs, it is preferred that there is continuous band of the ribbed skin in contact with the paint surface when the water droplets are being wiped off, to prevent the droplets leaving streak-lines on the paint-work behind the implement.
Suitably the sheath covers the bulk of the generally semi-cylindrical shaped face of the sponge so that the sheath provides a hand-hold for the block and prevents liquid absorbed into the spong from flooding out over the hand of the user when the cleaning solution is being applied. The semi-cylindrical shape of the block facilitates the ability of the block to perform a partly wiping action and partly rolling action, as the user's wrist turns naturally during the wiping movement of the block over the surface being cleaned.
INTRODUCTION TO THE DRAWINGS
The invention will now be described in more detail, by way of examples, with reference to the accompanying partly diagrammatic drawings, in which:
FIGURE 1 is a top perspective view of a spongy implement for cleaning a painted surface;
FIGURE 2 is an under plan view of the implement;
FIGURE 3 is an end view of the implement, both ends appearing the same;
FIGURE 4 is a top plan view showing a further design of ribbing on the sheath;
FIGURE 5 is a top plan view of an implement with yet another shape of ribbing on the sheath; and
FIGURE 6 shows the implement of Figure 5 in use wiping surplus water drops from the painted surface of part of a motor vehicle.
DESCRIPTION OF PREFERRED EMBODIMENT
Figure 1 shows a cleaning implement 1 which is about 215 mm. long, 105 mm. wide and 75 mm. high. It comprises a soft, resiliently flexible, sponge block which is water absorbent and which has a flat rectangular face 3 shown in figure 2. The opposite face of the block is a generally semicylindrical shape to provide a comfortable hand-hold, and is sheathed with a non-absorbent resiliently flexible skin 4 which is 2 mm. thick. The skin 4 is provided with external parallel ribs 5 about 2 mm. high and which have a V- shaped section as shown in figure 3. the block is made from an open-cell foam of soft polyurethane, and the skin 4 is made form closed-cell ethylene vinyl acetate foam. The skin is cemented to the block by a waterproof adhesive which when applied, does not degrade the skin 4 or the surface of the block 2.
VARIATIONS OF PREFERRED EMBODIMENT
As appears from figures 4 and 5 the ribs 5 provided on the skin 4 can have different shapes without detracting from the usefulness of the invention.
In figure 4 the ribs are interrupted to provide short rib sections 6 which are staggered with respect to the lines of short rib sections in the adjacent rib lines.
In figure 5 the ribs are formed by S-shape rib sections 7 arranged in lines and staggered with respect to the ribs in neighbouring lines.
In a further embodiment (no shown) the rib sections are of C-shape with successive rib sections in each line facing in opposite directions respectively, and the rib sections in adjacent lines being staggered with respect to one another.
In another non-illustrated embodiment, the block 2 is of parallelepiped shape and has one rectangular face exposed, and the other, opposite, rectangular face and adjacent portions of the longer sides of the block sheathed with the skin which effectively provides two parallel ribs where it extends over the corners at the longer sides of said opposite face. The end faces of the block may also be sheathed with the skin if desired.
USE OF THE IMPLEMENT
Figure 6 shows the implement in use to remove water droplets from the painted surface of a motor vehicle body. The vehicle body has a curved contour but the flexibility of the implement enables it to mould itself naturally to the painted surface under hand pressure, so that the ribs provide dams which prevent the water droplets from passing beneath the skin 4 of the implement as it is passed over the wet curved painted surface of the vehicle. The painted surface is thus wiped dry in much the same way as if the water droplets had been removed by a chamois leather using the conventional technique.

Claims

THE CLAIMS DEFINING THE INVENTION ARE AS FOLLOWS:
1. An implement for cleaning grime from an extended surface susceptible to atmospheric pollution, comprises a resiliently-flexible block of relatively water-absorbent, spongy material having one face exposed for applying a cleaning solution such as soapy water to the surface to be cleaned, and the opposite face sheathed with a resiliently-flexible, externally-ribbed skin of material which is relatively non-absorbent to water.
2. An implement as claimed in claim 1 , in which the exposed surface of the skin is ribbed.
3. An implement as claimed in claim 2, in which the ribs are spaced and substantially parallel and extended in continuous fashion between opposite ends of the block.
4. An implement as claimed in claim 1 or claim 2, in which the ribs are each formed from spaced rib sections which are staggered with respect to the rib sections of the neighbouring ribs.
5. An implement as claimed in any of the preceding claims, in which the skin sheaths said opposite face and the bulk of the longer sides of the block.
6. An implement as claimed in any of the preceding claims, in which the skin is a relatively thin plastics strip integrally formed with ribs and adhering to said opposite face of the block.
7. An implement as claimed in any of the preceding claims, in which the exposed face of the block is rectangular, and said skin provides a semi-cylindrical hand-hold for the implement.
8. An implement as claimed in any of the preceding claims, in which the block is made from an open-cell soft foam and the skin is made from a closed cell foam layer integrally formed with the ribs.
9. An implement as claimed in claim 8, in which the material of the block is polyurethane and the material of the skin is ethylene vinyl acetate or polyethylene.
10. An implement as claimed in claim 8 in which the ribs are heat formed onto the closed cell foam layer.
AMENDED CLAIMS
[received by the International Bureau on 29 June 1993 (29.06.93) ; original claims 1-10 replaced by amended claims 1-8 (1page)]
1. An implement for cleaning grime and wiping liquid from an extended surface, comprises a resiliently-flexible block of relatively water-absorbent spongy material having one face exposed for applying a cleaning solution, such as soapy water, to the surface to be cleaned and wiped dry, and the opposite face sheathed with a relatively thin resiliently-flexible skin of material which is non-absorbent to water and which is bonded over substantially its entire area to said opposite face so as to be effectively integral therewith and said resiliently flexible skin having non-absorbent vee-shaped ridges with smooth and relatively sharp outer edges formed on its outer side to act as effective wiping blades that can bend in three dimensions and wipe liquid from a curved surface.
2. An implement as claimed in claim 1 in which the Ridges are spaced and substantially parallel and extended in continuous fashion between opposite ends of the block.
3. An implement as claimed in claim 1 or claim 2, in which the ridges are each formed from spaced ridge sections which are staggered with respect to the ridge sections of the neighbouring ridges.
4. An implement as claimed in any of the preceding claims, in which the exposed face of the block is rectangular, and said skin provides a semi-cylindrical hand-hold for the implement.
5. An implement as claimed in any of the preceding claims, in which the block is made from soft foam and the skin is made from a closed cell layer integrally formed with the ridges.
6. An implement as claimed in claim 5 in which the material of the block is polyurethane and the material of the skin is ethylene vinyl acetate or polyethylene.
7. An implement as claimed in claim 6 in which the ridges are heat formed onto the skin.
8. An implement as claimed in any of the preceding claims, in which the ridges are formed in a random or non random pattern or form letters or writing symbols.
PCT/AU1993/000023 1992-01-23 1993-01-21 Sponge squeegee combination WO1993014686A1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
US08/244,727 US5429678A (en) 1992-01-23 1993-01-21 Sponge squeegee combination
AU33391/93A AU658479B2 (en) 1992-01-23 1993-01-21 Sponge squeegee combination
EP93901975A EP0623000B1 (en) 1992-01-23 1993-01-21 Sponge squeegee combination
JP5512789A JPH07506734A (en) 1992-01-23 1993-01-21 Sponge/squeegee combination
DE69306758T DE69306758T2 (en) 1992-01-23 1993-01-21 COMBINATION OF SPONGE AND WIPER
NO941976A NO941976L (en) 1992-01-23 1994-05-27 Sponge / wiper combination

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPL0565 1992-01-23
AUPL056592 1992-01-23

Publications (1)

Publication Number Publication Date
WO1993014686A1 true WO1993014686A1 (en) 1993-08-05

Family

ID=3775948

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU1993/000023 WO1993014686A1 (en) 1992-01-23 1993-01-21 Sponge squeegee combination

Country Status (9)

Country Link
US (1) US5429678A (en)
EP (1) EP0623000B1 (en)
JP (1) JPH07506734A (en)
AT (1) ATE146347T1 (en)
CA (1) CA2124938A1 (en)
DE (1) DE69306758T2 (en)
ES (1) ES2099416T3 (en)
NZ (1) NZ246524A (en)
WO (1) WO1993014686A1 (en)

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EP0600829A1 (en) * 1992-12-02 1994-06-08 Karl Martin Cleaning sponge

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USD377305S (en) * 1995-10-20 1997-01-14 Jeffrey Bliss Combination sanding block and squeegee
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US5809605A (en) * 1997-04-15 1998-09-22 Allway Tools, Inc. Squeegee assembly
US5920942A (en) * 1997-04-22 1999-07-13 Easy Day Manufacturing Company Combination mop and wiper
US6058548A (en) * 1998-04-27 2000-05-09 Easy Day Manufacturing Company Removable cleaning element from mop
US6056468A (en) * 1998-10-02 2000-05-02 Niewiadomski; Mitchell Eraser for whiteboard marker
US6148465A (en) * 1999-05-04 2000-11-21 Hsieh; Ming-Ti Mophead for a sponge mop
US8276231B2 (en) 1999-06-11 2012-10-02 Gavney Jr James A Oral-care device and system
US7743448B2 (en) 1999-06-11 2010-06-29 Gavney Jr James A Device and system with moving squeegee fields
US20070033755A1 (en) * 1999-06-11 2007-02-15 Gavney James A Jr Squeegee device and system
US7877833B2 (en) 1999-06-11 2011-02-01 Gavney Jr James A Oral-care device and system
US6379237B1 (en) * 1999-09-08 2002-04-30 Winston Livingston Gordon Abrasive sponge grip
US20040074036A1 (en) * 1999-12-01 2004-04-22 Collier Michael D. Hand covering with expanse of formed material having plural wipers
US6962739B1 (en) * 2000-07-06 2005-11-08 Higher Dimension Medical, Inc. Supple penetration resistant fabric and method of making
US20030124935A1 (en) * 2000-07-06 2003-07-03 Nicole Smith Scrub pad with printed rigid plates and associated methods
US7018692B2 (en) * 2000-07-06 2006-03-28 Higher Dimension Medical, Inc. Penetration resistant fabric with multiple layer guard plate assemblies and method of making the same
US6367116B1 (en) 2000-07-26 2002-04-09 Debartolo William E Clearvision ridesafe glove
CA2464415C (en) * 2001-10-25 2012-06-19 Higher Dimension Medical, Inc. Scrub pad with printed rigid plates and associated methods
US20030094186A1 (en) * 2001-11-19 2003-05-22 David Klein Cleaning pad
US8250698B2 (en) * 2002-11-09 2012-08-28 Gavney Jr James A Hybrid cleaning device including absorbent and contact elements
US8141194B2 (en) * 2002-11-09 2012-03-27 Gavney Jr James A Absorbent structures with integrated contact elements
US20040261207A1 (en) * 2002-11-09 2004-12-30 Gavney James A. Squeegee device and system
US20040154118A1 (en) * 2003-02-11 2004-08-12 Jamie Bohn Stain removing device
US20050155627A1 (en) * 2004-01-21 2005-07-21 Johnsondiversey, Inc. Spill cleaning device with built-in squeegee
US20050286963A1 (en) * 2004-06-28 2005-12-29 Water Works I, Inc. Cleaning tool
US7305731B2 (en) * 2005-03-09 2007-12-11 Bissell Homecare, Inc. Carpet brush for hair removal
US20070267042A1 (en) * 2006-05-22 2007-11-22 Gene Menzies Cleaning article
US20080083080A1 (en) * 2006-10-04 2008-04-10 Arthur Shen Surface stabilizer attachment for floor mop
US20080216260A1 (en) * 2007-03-09 2008-09-11 Michael Silverman Scraper sponge
KR101161490B1 (en) * 2007-06-06 2012-07-12 하이어 디멘션 머티리얼즈, 인크. Cut, abrasion and/or puncture resistant knitted gloves
US8745807B2 (en) * 2008-09-17 2014-06-10 Donald Varner Scrubbing apparatus and method
TWM357955U (en) * 2009-01-22 2009-06-01 kun-di Huang Cleaning tool
US9027796B1 (en) * 2012-03-15 2015-05-12 David M. Leitch Tool to aid in the caulking process
US20140201937A1 (en) * 2013-01-18 2014-07-24 Empire Emco, Inc. Cleaning article holders
US10077030B2 (en) 2013-11-21 2018-09-18 Jacob Paro Combination cleaning tool with flexible head
US20150196184A1 (en) * 2014-01-14 2015-07-16 Dylan F. Muise Multi-purpose cleaning device
CN103990606A (en) * 2014-05-28 2014-08-20 广州秀妆美容用品有限公司 Cleaning collodion
DE102015006092A1 (en) 2015-05-09 2016-11-10 Gunnar Pöppe Cleaning device for cleaning and care of decking o. The like. Usable areas

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FR1115689A (en) * 1954-12-03 1956-04-27 Sponge holder box
GB836238A (en) * 1957-05-01 1960-06-01 Kay Brothers Ltd Improvements in or relating to polishing material
US3611468A (en) * 1969-08-28 1971-10-12 Halbrand Inc Disposable scrub brush
GB1417293A (en) * 1972-08-15 1975-12-10 Johnson & Johnson Composite cleaning article and method of manufacturing the same
US3857133A (en) * 1973-03-29 1974-12-31 Brooklyn Prod Inc Combination scrubbing and wiping sponge
FR2541886A1 (en) * 1983-03-04 1984-09-07 Cham Pierre Universal manual cleaning device

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Publication number Priority date Publication date Assignee Title
EP0600829A1 (en) * 1992-12-02 1994-06-08 Karl Martin Cleaning sponge

Also Published As

Publication number Publication date
JPH07506734A (en) 1995-07-27
EP0623000A4 (en) 1994-12-14
EP0623000B1 (en) 1996-12-18
ES2099416T3 (en) 1997-05-16
CA2124938A1 (en) 1993-08-05
ATE146347T1 (en) 1997-01-15
EP0623000A1 (en) 1994-11-09
DE69306758D1 (en) 1997-01-30
DE69306758T2 (en) 1997-06-12
US5429678A (en) 1995-07-04
NZ246524A (en) 1996-02-27

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