EP1820435A1 - Mop with drying mechanism - Google Patents

Mop with drying mechanism Download PDF

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Publication number
EP1820435A1
EP1820435A1 EP06003219A EP06003219A EP1820435A1 EP 1820435 A1 EP1820435 A1 EP 1820435A1 EP 06003219 A EP06003219 A EP 06003219A EP 06003219 A EP06003219 A EP 06003219A EP 1820435 A1 EP1820435 A1 EP 1820435A1
Authority
EP
European Patent Office
Prior art keywords
bundle
flared
stick
steel balls
mop
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.)
Withdrawn
Application number
EP06003219A
Other languages
German (de)
French (fr)
Inventor
Hsiao-Hung Chiang
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.)
Individual
Original Assignee
Individual
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
Priority to AU2006200442A priority Critical patent/AU2006200442B1/en
Priority to CA002535383A priority patent/CA2535383A1/en
Priority to US11/350,818 priority patent/US20070186363A1/en
Application filed by Individual filed Critical Individual
Priority to EP06003219A priority patent/EP1820435A1/en
Priority to IL181122A priority patent/IL181122A0/en
Priority to NZ553079A priority patent/NZ553079A/en
Publication of EP1820435A1 publication Critical patent/EP1820435A1/en
Withdrawn legal-status Critical Current

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Classifications

    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L13/00Implements for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L13/10Scrubbing; Scouring; Cleaning; Polishing
    • A47L13/14Scrubbing; Scouring; Cleaning; Polishing combined with squeezing or wringing devices
    • A47L13/142Scrubbing; Scouring; Cleaning; Polishing combined with squeezing or wringing devices having torsional squeezing or wringing action

Definitions

  • the present invention relates to mops and more particularly to mops having a labor saving mechanism for wrenching a bundle of loose rags thereof dry after moping floors.
  • moping floors is typically a labor intensive job as viewed by many people. This is not desirable particularly to, for example, women.
  • a mop comprising a stick including a hollow lower stick including a flared part at a lower end, a plurality of longitudinal parallel grooves extending upward from the flared part, a plurality of helical grooves extending upward from the parallel grooves, and top threads; and an upper stick including a flared nut at its lower end and adapted to be threadedly secured to the threads for fastening the lower and upper sticks together; a bundle of loose members having a lower end fastened to the flared part; an inner sleeve put on both the parallel grooves and the helical grooves and including a flared member at a lower end, and an annular trough around a lower edge of the flared member with an upper end of the bundle of loose members fastened thereto, a cylinder, two opposite lateral tubes at a joining point of the cylinder and the flared member, two steel balls slidably disposed in the tubes, and a top stopper secured to an upper portion of the cylinder;
  • the flared part comprises two opposite lateral holes, and further comprises a pin inserted through the holes and the lower end of the bundle of loose members for fastening the bundle of loose members to the flared part.
  • the loose members of the bundle are either rags or yarns.
  • a mop 1 in accordance with a preferred embodiment of the invention comprises a stick including a hollow lower stick 11 including a flared part 13 at a lower end, the flared part 13 including two opposite lateral holes 131, a plurality of longitudinal parallel grooves 112 extending upward from the flared part 13, a plurality of intermediate helical grooves 111 extending upward from the parallel grooves 112, an upper knurled part 113 spaced from the helical grooves 111 by a predetermined distance wherein an outer surface of the lower stick 11 corresponding to the predetermined distance is smooth, and top threads 14 proximate an upper end and extending upward from the knurled part 113; and an upper stick 12 including a flared nut 15 at its lower end and adapted to be threadedly secured to the threads 14 for fastening the lower stick 11 and the upper stick 12 together and enabling a person to adjust the stick to a desired length by threading.
  • the mop 1 further comprises a bundle of loose rags (or yarns or the like in other embodiments) 20 having a lower end fastened to the flared part 13 by inserting a pin A through the holes 131 and the bundle of loose rags 20.
  • a bundle of loose rags or yarns or the like in other embodiments
  • the lower stick 11 and the bundle of loose rags 20 may operate as a whole.
  • the mop 1 further comprises an inner sleeve 30 slidably put on both the parallel grooves 112 and the helical grooves 111 and including a flared member 31 at a lower end, and an annular trough 32 around a lower edge of the flared member 31.
  • the upper end of the bundle of loose rags 20 is fastened to the annular trough 32 such that the bundle of loose rags 20 and the inner sleeve 30 may operate as a whole.
  • the inner sleeve 30 further comprises a cylinder 33, two opposite lateral tubes 34 at a joining point of the cylinder 33 and the flared member 31, two steel balls 35 slidably disposed in the tubes 34, and a top ring 331 having an annular flange secured to an upper portion of the cylinder 33.
  • the mop 1 further comprises an outer sleeve 40 put on the inner sleeve 30.
  • the outer sleeve 40 comprises an enlargement 41 at a lower end put on the joining point of the cylinder 33 and the flared member 31.
  • the enlargement 41 is adapted to surround the steel balls 35 for preventing the steel balls 35 from disengaging with the tubes 34, and a knurled member 42 extending upward from the enlargement 41.
  • the outer sleeve 40 is confined to slide between the ring 331 and the joining point of the cylinder 33 and the flared member 31.
  • the mop 1 is shown in a ready to use state in which upper and lower ends of the bundle of loose rags 20 are fully extended, the enlargement 41 is in contact with the steel balls 35 in the tubes 34, the steel balls 35 are not engaged with the helical grooves 111, and the lower stick 11 is thus adapted to pass the inner sleeve 30 downward.
  • a person may hold the knurled member 42 by one hand to push both the knurled member 42 and the enlargement 41 downward toward the flared part 13.
  • the steel balls 35 are thus pushed inward to urge against the helical grooves 111 by a slightly tapered upward inner surface of the enlargement 41.
  • the person may hold the upper end of the lower stick 11 with the other hand to pull the lower stick 11 upward.
  • the lower stick 11 may helically move upward along the helical grooves 111.
  • the lower end of the bundle of loose rags 20 moves upward towards its upper end (i.e., the upper end of the bundle of loose rags 20 is fixed at this time).
  • the mop 1 i.e., the bundle of loose rags 20
  • the mop 1 is wrenched to dry.
  • the invention is thus configured to have the longitudinal parallel grooves 112.
  • the person may place the bundle of loose rags 20 on the floor in an upright position.
  • the upper end of the bundle of loose rags 20 moves downward towards its lower end (i.e., the lower end of the bundle of loose rags 20 is fixed at this time).
  • the mop 1 i.e., the bundle of loose rags 20
  • the mop 1 is further wrenched to dry.
  • the person may push the lower stick 11 and thus the inner sleeve 30 downward.
  • the steel balls 35 thus disengage with the enlargement 41 (i.e., the steel balls 35 are free).
  • the lower stick 11 moves downward quickly through the inner sleeve 30 from the position shown in FIG. 6 until the bundle of loose rags 20 is fully extended as shown in FIG. 7.
  • the mop 1 is again in a ready to use state.
  • the mop drying process involves no wrench by the hands.
  • the bundle of loose rags 20 can be dried quickly, completely.

Abstract

A mop (1) includes a hollow lower stick (11) including a bottom flared part (13), lower longitudinal parallel grooves (112), and intermediate helical grooves (111); an upper stick (12) slidable in the lower stick (11); an inner sleeve (30) including a bottom flared member (31), two steel balls (35) slidably disposed in two opposite lateral tubes (34) proximate the flared member (31), and a top stopper (331); a bundle of loose members (20) having both ends fastened to the flared part (13) and the flared member (31); and an outer sleeve (40) including a flared enlargement (41) adapted to surround and confine the steel balls (35). After moping, a person may push the enlargement (41) downward towards the flared part (13) for pushing the steel balls (35) inward to urge against the helical grooves (111), and it is adapted to helically pull the lower stick (11) upward along the helical grooves (111) for moving the lower end of the bundle of loose members (20) upward towards the upper end thereof for drying.

Description

    BACKGROUND OF THE INVENTION
  • The present invention relates to mops and more particularly to mops having a labor saving mechanism for wrenching a bundle of loose rags thereof dry after moping floors.
  • RELATED ART
  • Conventionally, a person may use the hands to exert a great force to wrench a bundle of loose rags or yarns of a mop dry after moping floors. Thus, moping floors is typically a labor intensive job as viewed by many people. This is not desirable particularly to, for example, women.
  • OBJECT OF THE INVENTION
  • It is therefore an object of the present invention to provide a labor saving mop.
  • SUMMARY OF THE INVENTION
  • The object of the present invention is achieved with a mop with the features of claim 1. Preferred embodiments of the present invention are presented in the subclaims.
  • According to the present invention a mop is provided comprising a stick including a hollow lower stick including a flared part at a lower end, a plurality of longitudinal parallel grooves extending upward from the flared part, a plurality of helical grooves extending upward from the parallel grooves, and top threads; and an upper stick including a flared nut at its lower end and adapted to be threadedly secured to the threads for fastening the lower and upper sticks together; a bundle of loose members having a lower end fastened to the flared part; an inner sleeve put on both the parallel grooves and the helical grooves and including a flared member at a lower end, and an annular trough around a lower edge of the flared member with an upper end of the bundle of loose members fastened thereto, a cylinder, two opposite lateral tubes at a joining point of the cylinder and the flared member, two steel balls slidably disposed in the tubes, and a top stopper secured to an upper portion of the cylinder; and an outer sleeve including an enlargement at a lower end put on the joining point of the cylinder and the flared member, the enlargement having an inner surface tapered upward and adapted to surround the steel balls for preventing the steel balls from disengaging with the tubes wherein the outer sleeve is confined to slide between the stopper and the joining point of the cylinder and the flared member; wherein in a ready to use state of the mop the upper and lower ends of the bundle of loose members are fully extended, the enlargement is in contact with the steel balls, the steel balls are not engaged with the helical grooves, and the lower stick is adapted to pass the inner sleeve downward; wherein after moping it is adapted to push the enlargement downward toward the flared part for causing the enlargement to push the steel balls inward to urge against the helical grooves, and it is further adapted to helically pull the lower stick upward along the helical grooves for moving the lower end of the bundle of loose members upward towards the upper end thereof for drying; wherein after the drying it is adapted to place the bundle of loose members upright and push both the outer and inner sleeves downward to move the upper end of the bundle of loose members downward towards the lower end thereof for further drying; and wherein after the further drying it is adapted to push both the lower stick and the inner sleeve downward to disengage the steel balls with the enlargement, and the lower stick is adapted to move downward through the inner sleeve until the bundle of loose members is fully extended.
  • In one aspect of the present invention the flared part comprises two opposite lateral holes, and further comprises a pin inserted through the holes and the lower end of the bundle of loose members for fastening the bundle of loose members to the flared part.
  • In another aspect of the present invention the loose members of the bundle are either rags or yarns.
  • The above and other objects, features and advantages of the present invention will become apparent from the following detailed description taken with the accompanying drawings.
  • BRIEF DESCRIPTION OF THE DRAWINGS
    • FIG. 1 is an exploded perspective view of a preferred embodiment of a mop according to the invention;
    • FIG. 2 is a perspective view of the assembled mop in FIG. 1;
    • FIG. 3 is a sectional view of FIG. 2 where the mop is ready to use;
    • FIG. 4 is a view similar to FIG. 3 where a turning of the outer sleeve will wrench the mop dry after use;
    • FIG. 5 is a view similar to FIG. 4 where a further pushing downward of the outer sleeve will wrench the mop further dry; and
    • FIGS. 6 and 7 are views similar to FIG. 3 showing steps of returning the dried mop to a ready to use state.
    DETAILED DESCRIPTION OF THE INVENTION
  • Referring to FIGS. 1, 2, and 3, a mop 1 in accordance with a preferred embodiment of the invention comprises a stick including a hollow lower stick 11 including a flared part 13 at a lower end, the flared part 13 including two opposite lateral holes 131, a plurality of longitudinal parallel grooves 112 extending upward from the flared part 13, a plurality of intermediate helical grooves 111 extending upward from the parallel grooves 112, an upper knurled part 113 spaced from the helical grooves 111 by a predetermined distance wherein an outer surface of the lower stick 11 corresponding to the predetermined distance is smooth, and top threads 14 proximate an upper end and extending upward from the knurled part 113; and an upper stick 12 including a flared nut 15 at its lower end and adapted to be threadedly secured to the threads 14 for fastening the lower stick 11 and the upper stick 12 together and enabling a person to adjust the stick to a desired length by threading.
  • The mop 1 further comprises a bundle of loose rags (or yarns or the like in other embodiments) 20 having a lower end fastened to the flared part 13 by inserting a pin A through the holes 131 and the bundle of loose rags 20. As an end, the lower stick 11 and the bundle of loose rags 20 may operate as a whole.
  • The mop 1 further comprises an inner sleeve 30 slidably put on both the parallel grooves 112 and the helical grooves 111 and including a flared member 31 at a lower end, and an annular trough 32 around a lower edge of the flared member 31. The upper end of the bundle of loose rags 20 is fastened to the annular trough 32 such that the bundle of loose rags 20 and the inner sleeve 30 may operate as a whole. The inner sleeve 30 further comprises a cylinder 33, two opposite lateral tubes 34 at a joining point of the cylinder 33 and the flared member 31, two steel balls 35 slidably disposed in the tubes 34, and a top ring 331 having an annular flange secured to an upper portion of the cylinder 33.
  • The mop 1 further comprises an outer sleeve 40 put on the inner sleeve 30. The outer sleeve 40 comprises an enlargement 41 at a lower end put on the joining point of the cylinder 33 and the flared member 31. The enlargement 41 is adapted to surround the steel balls 35 for preventing the steel balls 35 from disengaging with the tubes 34, and a knurled member 42 extending upward from the enlargement 41. The outer sleeve 40 is confined to slide between the ring 331 and the joining point of the cylinder 33 and the flared member 31.
  • Referring to FIG. 3 specifically, the mop 1 is shown in a ready to use state in which upper and lower ends of the bundle of loose rags 20 are fully extended, the enlargement 41 is in contact with the steel balls 35 in the tubes 34, the steel balls 35 are not engaged with the helical grooves 111, and the lower stick 11 is thus adapted to pass the inner sleeve 30 downward.
  • Referring to FIG. 4, after moping the floors a person may hold the knurled member 42 by one hand to push both the knurled member 42 and the enlargement 41 downward toward the flared part 13. The steel balls 35 are thus pushed inward to urge against the helical grooves 111 by a slightly tapered upward inner surface of the enlargement 41. At the same time, the person may hold the upper end of the lower stick 11 with the other hand to pull the lower stick 11 upward. As such, the lower stick 11 may helically move upward along the helical grooves 111. Also, the lower end of the bundle of loose rags 20 moves upward towards its upper end (i.e., the upper end of the bundle of loose rags 20 is fixed at this time). As a result, the mop 1 (i.e., the bundle of loose rags 20) is wrenched to dry.
  • Referring to FIG. 5, considering weak women the invention is thus configured to have the longitudinal parallel grooves 112. After pulling the lower stick 11 upward to the position shown in FIG. 4, the person may place the bundle of loose rags 20 on the floor in an upright position. Next, push both the outer sleeve 40 and the inner sleeve 30 downward. As a result, the upper end of the bundle of loose rags 20 moves downward towards its lower end (i.e., the lower end of the bundle of loose rags 20 is fixed at this time). As a result, the mop 1 (i.e., the bundle of loose rags 20) is further wrenched to dry.
  • Referring to FIGS. 6 and 7, after drying the mop 1 the person may push the lower stick 11 and thus the inner sleeve 30 downward. The steel balls 35 thus disengage with the enlargement 41 (i.e., the steel balls 35 are free). Next, the lower stick 11 moves downward quickly through the inner sleeve 30 from the position shown in FIG. 6 until the bundle of loose rags 20 is fully extended as shown in FIG. 7. At this position, the mop 1 is again in a ready to use state. In view of the above, the mop drying process involves no wrench by the hands. Thus, it is a labor saving design. Also, the bundle of loose rags 20 can be dried quickly, completely.
  • While the invention herein disclosed has been described by means of specific embodiments, numerous modifications and variations could be made thereto by those skilled in the art without departing from the scope and spirit of the invention set forth in the claims.

Claims (4)

  1. A mop (1) with drying mechanism comprising:
    a stick including a hollow lower stick (11) including a flared part (13) at a lower end, a plurality of longitudinal parallel grooves (112) extending upward from the flared part (13), a plurality of helical grooves (111) extending upward from the parallel grooves (112), and top threads (14); and an upper stick (12) including a flared nut (15) at its lower end and adapted to be threadedly secured to the threads (14) for fastening the lower and upper sticks (11, 12) together;
    a bundle of loose members (20) having a lower end fastened to the flared part (13);
    an inner sleeve (30) put on both the parallel grooves (112) and the helical grooves (111) and including a flared member (31) at a lower end, and an annular trough (32) around a lower edge of the flared member (31) with an upper end of the bundle of loose members (20) fastened thereto, a cylinder (33), two opposite lateral tubes (34) at a joining point of the cylinder (33) and the flared member (31), two steel balls (35) slidably disposed in the tubes (34), and a top stopper (331) secured to an upper portion of the cylinder (33); and
    an outer sleeve (40) including an enlargement (41) at a lower end put on the joining point of the cylinder (33) and the flared member (31), the enlargement (41) having an inner surface tapered upward and adapted to surround the steel balls (35) for preventing the steel balls (35) from disengaging with the tubes (34) wherein the outer sleeve (40) is confined to slide between the stopper (331) and the joining point of the cylinder (33) and the flared member (31);
    wherein in a ready to use state of the mop (1) the upper and lower ends of the bundle of loose members (20) are fully extended, the enlargement (41) is in contact with the steel balls (35), the steel balls (35) are not engaged with the helical grooves (111), and the lower stick (11) is adapted to pass the inner sleeve (30) downward;
    wherein after moping it is adapted to push the enlargement (41) downward towards the flared part (13) for causing the enlargement (41) to push the steel balls (35) inward to urge against the helical grooves (111), and it is further adapted to helically pull the lower stick (11) upward along the helical grooves (111) for moving the lower end of the bundle of loose members (20) upward towards the upper end thereof for drying;
    wherein after the drying it is adapted to place the bundle of loose members (20) upright and push both the outer and inner sleeves (40, 30) downward to move the upper end of the bundle of loose members (20) downward towards the lower end thereof for further drying; and
    wherein after the further drying it is adapted to push both the lower stick (11) and the inner sleeve (30) downward to disengage the steel balls (35) with the enlargement (41), and the lower stick (11) is adapted to move downward through the inner sleeve (30) until the bundle of loose members (20) is fully extended.
  2. The mop (1) as defined by claim 1, wherein the flared part (13) comprises two opposite lateral holes (131), and further comprising a pin (A) inserted through the holes (131) and the lower end of the bundle of loose members (20) for fastening the bundle of loose members (20) to the flared part (13).
  3. The mop (1) as defined by claim 1, wherein the loose members (20) of the bundle are rags.
  4. The mop (1) as defined by claim 1, wherein the loose members (20) of the bundle are yarns.
EP06003219A 2006-02-02 2006-02-17 Mop with drying mechanism Withdrawn EP1820435A1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
AU2006200442A AU2006200442B1 (en) 2006-02-02 2006-02-02 Mop with Drying Mechanism
CA002535383A CA2535383A1 (en) 2006-02-02 2006-02-07 Mop with drying mechanism
US11/350,818 US20070186363A1 (en) 2006-02-02 2006-02-10 Mop with drying mechanism
EP06003219A EP1820435A1 (en) 2006-02-02 2006-02-17 Mop with drying mechanism
IL181122A IL181122A0 (en) 2006-02-02 2007-02-01 Mop with drying mechanism
NZ553079A NZ553079A (en) 2006-02-02 2007-02-08 Mop with drying mechanism

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
AU2006200442A AU2006200442B1 (en) 2006-02-02 2006-02-02 Mop with Drying Mechanism
CA002535383A CA2535383A1 (en) 2006-02-02 2006-02-07 Mop with drying mechanism
US11/350,818 US20070186363A1 (en) 2006-02-02 2006-02-10 Mop with drying mechanism
EP06003219A EP1820435A1 (en) 2006-02-02 2006-02-17 Mop with drying mechanism

Publications (1)

Publication Number Publication Date
EP1820435A1 true EP1820435A1 (en) 2007-08-22

Family

ID=42733507

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06003219A Withdrawn EP1820435A1 (en) 2006-02-02 2006-02-17 Mop with drying mechanism

Country Status (6)

Country Link
US (1) US20070186363A1 (en)
EP (1) EP1820435A1 (en)
AU (1) AU2006200442B1 (en)
CA (1) CA2535383A1 (en)
IL (1) IL181122A0 (en)
NZ (1) NZ553079A (en)

Cited By (3)

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Publication number Priority date Publication date Assignee Title
CN105942940A (en) * 2013-07-25 2016-09-21 嘉兴捷顺旅游制品有限公司 Rotary mop capable of being spin-dried
CN107735008A (en) * 2015-05-08 2018-02-23 精巧设计有限责任公司 The mop of mechanism is wrung out with rotation
EP3991626A1 (en) * 2020-10-31 2022-05-04 Jiaxing Jackson Travel Products Co., Ltd. Water wringing mop

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US8402589B2 (en) 2001-07-25 2013-03-26 The Libman Company Cleaning implement
TWM296683U (en) * 2006-03-28 2006-09-01 Da-Jiun Gau Mop
US7891039B2 (en) * 2007-09-18 2011-02-22 Ming-Hsien Lin Cleaning apparatus with fast wringing ability
GB2453158B (en) * 2007-09-27 2010-01-06 Ming-Hsien Lin Cleaning apparatus with fast wringing ability
US8214963B2 (en) * 2009-05-14 2012-07-10 Tsung Mou Yu Mop with spinning device
US20110005018A1 (en) * 2009-07-13 2011-01-13 Zheng tian-quan Rotatable mop
US20110277259A1 (en) * 2010-05-13 2011-11-17 Chen Jui-Yao Automatic rotating mop
CN101862170A (en) * 2010-06-18 2010-10-20 赵一美 Fall-preventing device of hydroextracting basket
CN102525359B (en) * 2010-12-10 2014-03-05 笠源科技股份有限公司 Self-rotating mop
CN109222802A (en) * 2016-06-04 2019-01-18 慈溪市博生塑料制品有限公司 A kind of extruding flat mop burnisher
US11419472B2 (en) 2020-03-13 2022-08-23 The Libman Company Cleaning implement

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US2230101A (en) * 1940-04-15 1941-01-28 Edward C Bakemeier Mop holder and wringer
US2365437A (en) * 1943-06-21 1944-12-19 William G Pankonin Mop
GB2249947A (en) * 1989-11-30 1992-05-27 P Mckay Twist action mop
WO1999026523A1 (en) * 1997-11-14 1999-06-03 Ola Thomasson Wringing method and wringing mechanism for floor mop
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105942940A (en) * 2013-07-25 2016-09-21 嘉兴捷顺旅游制品有限公司 Rotary mop capable of being spin-dried
CN105942940B (en) * 2013-07-25 2018-07-13 嘉兴捷顺旅游制品有限公司 One kind can rotating type mop capable of being spun-dried to remove water
CN107735008A (en) * 2015-05-08 2018-02-23 精巧设计有限责任公司 The mop of mechanism is wrung out with rotation
CN107735008B (en) * 2015-05-08 2020-10-30 精巧设计有限责任公司 Mop with rotary wringing mechanism
EP3991626A1 (en) * 2020-10-31 2022-05-04 Jiaxing Jackson Travel Products Co., Ltd. Water wringing mop

Also Published As

Publication number Publication date
AU2006200442B1 (en) 2007-04-19
CA2535383A1 (en) 2007-08-07
NZ553079A (en) 2008-04-30
IL181122A0 (en) 2007-08-19
US20070186363A1 (en) 2007-08-16

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