GB935807A - A combined eraser and suction cleaner for blackboards - Google Patents
A combined eraser and suction cleaner for blackboardsInfo
- Publication number
- GB935807A GB935807A GB1687462A GB1687462A GB935807A GB 935807 A GB935807 A GB 935807A GB 1687462 A GB1687462 A GB 1687462A GB 1687462 A GB1687462 A GB 1687462A GB 935807 A GB935807 A GB 935807A
- Authority
- GB
- United Kingdom
- Prior art keywords
- blackboards
- eraser
- suction cleaner
- casing
- pads
- 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
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
- Nozzles For Electric Vacuum Cleaners (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Electric Vacuum Cleaner (AREA)
Abstract
935,807. Suction cleaners for blackboards. KWAN SHU MIN. May 2, 1962, No. 16874/62. Class 8(1). A blackboard eraser has eraser pads 14 mounted on one side of a casing 1 containing a fan 16 driven by an electric motor M which sucks the chalk dust removed by the pads through the opening 15 into the dust bag 18. The casing has a detachable cover plate 3 to provide access to the motor M and the batteries B, B<SP>1</SP>.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1687462A GB935807A (en) | 1962-05-02 | 1962-05-02 | A combined eraser and suction cleaner for blackboards |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1687462A GB935807A (en) | 1962-05-02 | 1962-05-02 | A combined eraser and suction cleaner for blackboards |
Publications (1)
Publication Number | Publication Date |
---|---|
GB935807A true GB935807A (en) | 1963-09-04 |
Family
ID=10085234
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1687462A Expired GB935807A (en) | 1962-05-02 | 1962-05-02 | A combined eraser and suction cleaner for blackboards |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB935807A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4204298A (en) * | 1977-11-18 | 1980-05-27 | Hiroyuki Handa | Compact vacuum cleaner |
FR2573699A1 (en) * | 1984-11-28 | 1986-05-30 | Lobez Sagues Manuel | Device for erasing writing from blackboards |
US5115765A (en) * | 1990-12-10 | 1992-05-26 | El Omary Hany M | Flea blower vacuum for pets |
US5537711A (en) * | 1995-05-05 | 1996-07-23 | Tseng; Yu-Che | Electric board cleaner |
EP1226979A1 (en) * | 2000-07-19 | 2002-07-31 | Te-Hsi Liu | A dust collecting device for an eraser and an eraser provided therewith |
WO2004045782A2 (en) * | 2002-11-19 | 2004-06-03 | Smc Korea Co., Ltd | An electromotive chalk eraser |
-
1962
- 1962-05-02 GB GB1687462A patent/GB935807A/en not_active Expired
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4204298A (en) * | 1977-11-18 | 1980-05-27 | Hiroyuki Handa | Compact vacuum cleaner |
FR2573699A1 (en) * | 1984-11-28 | 1986-05-30 | Lobez Sagues Manuel | Device for erasing writing from blackboards |
US5115765A (en) * | 1990-12-10 | 1992-05-26 | El Omary Hany M | Flea blower vacuum for pets |
US5537711A (en) * | 1995-05-05 | 1996-07-23 | Tseng; Yu-Che | Electric board cleaner |
EP1226979A1 (en) * | 2000-07-19 | 2002-07-31 | Te-Hsi Liu | A dust collecting device for an eraser and an eraser provided therewith |
WO2004045782A2 (en) * | 2002-11-19 | 2004-06-03 | Smc Korea Co., Ltd | An electromotive chalk eraser |
WO2004045782A3 (en) * | 2002-11-19 | 2005-03-31 | Smc Korea Co Ltd | An electromotive chalk eraser |
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