EP1181156A4 - Dispositif et procede d'effacement automatique d'un tableau noir - Google Patents

Dispositif et procede d'effacement automatique d'un tableau noir

Info

Publication number
EP1181156A4
EP1181156A4 EP00929924A EP00929924A EP1181156A4 EP 1181156 A4 EP1181156 A4 EP 1181156A4 EP 00929924 A EP00929924 A EP 00929924A EP 00929924 A EP00929924 A EP 00929924A EP 1181156 A4 EP1181156 A4 EP 1181156A4
Authority
EP
European Patent Office
Prior art keywords
blackboard
automatically erasing
erasing
automatically
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Withdrawn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
EP00929924A
Other languages
German (de)
English (en)
Other versions
EP1181156A1 (fr
Inventor
Chang-Ho Jang
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
Application filed by Individual filed Critical Individual
Publication of EP1181156A1 publication Critical patent/EP1181156A1/fr
Publication of EP1181156A4 publication Critical patent/EP1181156A4/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
    • B43L21/00—Blackboard or slate cleaning devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
    • B43L1/00—Repeatedly-usable boards or tablets for writing or drawing
    • B43L1/04—Blackboards
EP00929924A 1999-05-07 2000-05-04 Dispositif et procede d'effacement automatique d'un tableau noir Withdrawn EP1181156A4 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP12738999 1999-05-07
JP12738999A JP3412810B2 (ja) 1999-05-07 1999-05-07 黒板の拭き取り装置及び黒板の拭き取り方法
PCT/KR2000/000424 WO2000068025A1 (fr) 1999-05-07 2000-05-04 Dispositif et procede d'effacement automatique d'un tableau noir

Publications (2)

Publication Number Publication Date
EP1181156A1 EP1181156A1 (fr) 2002-02-27
EP1181156A4 true EP1181156A4 (fr) 2005-02-02

Family

ID=14958794

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00929924A Withdrawn EP1181156A4 (fr) 1999-05-07 2000-05-04 Dispositif et procede d'effacement automatique d'un tableau noir

Country Status (8)

Country Link
EP (1) EP1181156A4 (fr)
JP (1) JP3412810B2 (fr)
KR (1) KR100324726B1 (fr)
CN (1) CN1150095C (fr)
AU (1) AU4783600A (fr)
CA (1) CA2368143A1 (fr)
TW (1) TW420641B (fr)
WO (1) WO2000068025A1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100457816B1 (ko) * 2002-05-08 2004-11-18 장창호 워터크린 칠판의 와이퍼부재
KR100956556B1 (ko) 2009-05-21 2010-05-11 김주영 자동 세척 칠판
CN103192639B (zh) * 2013-03-15 2016-12-28 杜浩明 带清洗功能的黑板擦拭机
IN2015CH03991A (fr) 2015-07-31 2015-08-14 Wipro Ltd
CN106274199B (zh) * 2016-11-16 2023-05-09 东莞职业技术学院 一种黑板自动擦拭装置
CN108357256A (zh) * 2018-01-02 2018-08-03 于翊凡 一种便捷式白板擦
CN109130634A (zh) * 2018-09-10 2019-01-04 天津大学 一种负离子电动无尘黑板擦
CN112519457B (zh) * 2020-12-22 2022-03-25 山东育博苑文化传媒有限公司 一种教学用板书快速擦除式黑板
CN117329407B (zh) * 2023-12-01 2024-02-09 吉林电子信息职业技术学院 一种带有清理机构的电子信息板支撑装置

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3731335A (en) * 1971-07-07 1973-05-08 B Chrisp Automatic chalkboard erasing apparatus
US3858265A (en) * 1973-01-15 1975-01-07 Rolland L Schlick Automatic blackboard eraser
CA1059272A (fr) * 1977-11-08 1979-07-31 Ray Agnesi Dispositif electronique pour effacer rapidement un tableau
US5216776A (en) * 1992-01-27 1993-06-08 Dennison Daniel C Automatic blackboard eraser apparatus
EP0689942A1 (fr) * 1994-06-29 1996-01-03 Kiyoharu Kawashima Dispositif pour tableau d'écriture
EP0786358A1 (fr) * 1995-08-17 1997-07-30 Ricoh Elemex Corporation Panneau d'ecriture
WO1999053466A2 (fr) * 1998-04-10 1999-10-21 Jang Chang Ho Appareil et procede d'effacement automatique d'un tableau

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63283999A (ja) * 1987-05-15 1988-11-21 山下　博 黒板消し装置
KR930000112Y1 (ko) * 1990-07-16 1993-01-09 배외윤 자동흑판 지우개장치
JP2678142B2 (ja) 1994-10-14 1997-11-17 日学株式会社 黒板類の消去方法、および、黒板類の消去装置
JPH09193599A (ja) 1996-01-19 1997-07-29 Nichigaku Kk 黒板類の消去方法、および、黒板類の消去装置
KR19990082692A (ko) * 1998-04-10 1999-11-25 장창호 워터크리닝칠판의소거장치및그방법

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3731335A (en) * 1971-07-07 1973-05-08 B Chrisp Automatic chalkboard erasing apparatus
US3858265A (en) * 1973-01-15 1975-01-07 Rolland L Schlick Automatic blackboard eraser
CA1059272A (fr) * 1977-11-08 1979-07-31 Ray Agnesi Dispositif electronique pour effacer rapidement un tableau
US5216776A (en) * 1992-01-27 1993-06-08 Dennison Daniel C Automatic blackboard eraser apparatus
EP0689942A1 (fr) * 1994-06-29 1996-01-03 Kiyoharu Kawashima Dispositif pour tableau d'écriture
EP0786358A1 (fr) * 1995-08-17 1997-07-30 Ricoh Elemex Corporation Panneau d'ecriture
WO1999053466A2 (fr) * 1998-04-10 1999-10-21 Jang Chang Ho Appareil et procede d'effacement automatique d'un tableau

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO0068025A1 *

Also Published As

Publication number Publication date
JP3412810B2 (ja) 2003-06-03
TW420641B (en) 2001-02-01
WO2000068025A1 (fr) 2000-11-16
KR100324726B1 (ko) 2002-02-28
AU4783600A (en) 2000-11-21
CN1359339A (zh) 2002-07-17
CA2368143A1 (fr) 2000-11-16
KR20010084962A (ko) 2001-09-07
EP1181156A1 (fr) 2002-02-27
CN1150095C (zh) 2004-05-19
JP2000318377A (ja) 2000-11-21

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