NL8602743A - Automatische bordenwisser met rollenaandrijving. - Google Patents
Automatische bordenwisser met rollenaandrijving. Download PDFInfo
- Publication number
- NL8602743A NL8602743A NL8602743A NL8602743A NL8602743A NL 8602743 A NL8602743 A NL 8602743A NL 8602743 A NL8602743 A NL 8602743A NL 8602743 A NL8602743 A NL 8602743A NL 8602743 A NL8602743 A NL 8602743A
- Authority
- NL
- Netherlands
- Prior art keywords
- plate
- roller
- rollers
- wiper
- gears
- Prior art date
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
- B43L21/02—Blackboard or slate cleaning devices with means for absorbing the chalk dust
Landscapes
- Drawing Aids And Blackboards (AREA)
- Cleaning In General (AREA)
- Brushes (AREA)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE8624147U DE8624147U1 (ja) | 1986-09-09 | 1986-09-09 | |
DE3630662 | 1986-09-09 | ||
DE8624147 | 1986-09-09 | ||
DE19863630662 DE3630662A1 (de) | 1986-09-09 | 1986-09-09 | Wandtafelputzer |
Publications (1)
Publication Number | Publication Date |
---|---|
NL8602743A true NL8602743A (nl) | 1988-05-16 |
Family
ID=25847356
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL8602743A NL8602743A (nl) | 1986-09-09 | 1986-10-31 | Automatische bordenwisser met rollenaandrijving. |
Country Status (6)
Country | Link |
---|---|
US (1) | US4742594A (ja) |
BE (1) | BE905757A (ja) |
DE (2) | DE8624147U1 (ja) |
FR (1) | FR2604123A1 (ja) |
GB (1) | GB2196302B (ja) |
NL (1) | NL8602743A (ja) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4941225A (en) * | 1989-11-13 | 1990-07-17 | Liao Su Land | Automatic chalk-powder collecting device for blackboard eraser |
US5530984A (en) * | 1995-08-31 | 1996-07-02 | Walker; William E. | Quick wipe eraser for chalkboards |
US6370720B1 (en) | 1998-04-10 | 2002-04-16 | Jang Chang-Ho | Apparatus and a method for automatically erasing a blackboard |
CN2484193Y (zh) * | 2001-06-29 | 2002-04-03 | 王玉龙 | 吸尘式板擦 |
US6895627B1 (en) * | 2004-02-02 | 2005-05-24 | Chieh-Jen Lin | Blackboard eraser |
US7685672B2 (en) * | 2005-05-18 | 2010-03-30 | Hsi-Hur Lai | Vacuum eraser for blackboards |
US8011050B2 (en) * | 2005-05-31 | 2011-09-06 | S.C. Johnson & Son, Inc. | Fabric sweeper |
US7721372B2 (en) * | 2005-05-31 | 2010-05-25 | S.C. Johnson & Son, Inc. | Fabric sweeper |
US20110247651A1 (en) | 2010-04-13 | 2011-10-13 | Neumann Peter M | Fabric Sweeper |
CN103241043B (zh) * | 2012-02-08 | 2015-06-17 | 俞渤仁 | 一种单面收尘黑板擦 |
CN105415944B (zh) * | 2014-10-30 | 2017-03-22 | 杨文朔 | 一种减少粉尘污染的黑板擦 |
EP3125074A1 (en) * | 2015-07-31 | 2017-02-01 | Wipro Limited | An electronic device for erasing contents on a writing board and a method thereof |
JP6701808B2 (ja) * | 2016-03-01 | 2020-05-27 | セイコーエプソン株式会社 | 印刷装置 |
CN106427322A (zh) * | 2016-09-12 | 2017-02-22 | 芜湖能盟信息技术有限公司 | 一种吸尘黑板擦 |
CN108466509B (zh) * | 2016-11-16 | 2020-07-14 | 泉州台商投资区国钗商贸有限公司 | 一种黑板擦 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1487052A (en) * | 1922-09-21 | 1924-03-18 | Enomoto Daniel | Eraser |
US4080683A (en) * | 1976-11-22 | 1978-03-28 | Chong Sun Yi | Chalk board eraser |
GB2090123B (en) * | 1980-12-09 | 1984-09-12 | Pang Hiang Seng | Blackboard duster |
US4462134A (en) * | 1982-12-20 | 1984-07-31 | Wang Jeng Lin | Blackboard eraser |
GB2132946B (en) * | 1982-12-20 | 1986-09-03 | Wen Chin Lee | Automatic blackboard duster |
-
1986
- 1986-09-05 US US06/904,352 patent/US4742594A/en not_active Expired - Fee Related
- 1986-09-09 DE DE8624147U patent/DE8624147U1/de not_active Expired
- 1986-09-09 DE DE19863630662 patent/DE3630662A1/de active Granted
- 1986-09-18 FR FR8613067A patent/FR2604123A1/fr not_active Withdrawn
- 1986-10-16 GB GB8624849A patent/GB2196302B/en not_active Expired - Lifetime
- 1986-10-31 NL NL8602743A patent/NL8602743A/nl not_active Application Discontinuation
- 1986-11-14 BE BE0/217411A patent/BE905757A/nl not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
DE8624147U1 (ja) | 1986-11-27 |
GB2196302B (en) | 1990-10-03 |
BE905757A (nl) | 1987-03-02 |
FR2604123A1 (fr) | 1988-03-25 |
DE3630662C2 (ja) | 1989-12-21 |
US4742594A (en) | 1988-05-10 |
DE3630662A1 (de) | 1988-03-17 |
GB8624849D0 (en) | 1986-11-19 |
GB2196302A (en) | 1988-04-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
BV | The patent application has lapsed |