US20030033686A1 - Dust collecting apparatus for eraser - Google Patents

Dust collecting apparatus for eraser Download PDF

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Publication number
US20030033686A1
US20030033686A1 US09/922,681 US92268101A US2003033686A1 US 20030033686 A1 US20030033686 A1 US 20030033686A1 US 92268101 A US92268101 A US 92268101A US 2003033686 A1 US2003033686 A1 US 2003033686A1
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United States
Prior art keywords
components
eraser
dust
housing
inhaling
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Abandoned
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US09/922,681
Inventor
Te-Hsi Liu
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Te-Hsi Liu
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Priority to US09/922,681 priority Critical patent/US20030033686A1/en
Publication of US20030033686A1 publication Critical patent/US20030033686A1/en
Application status is Abandoned legal-status Critical

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    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/28Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
    • A47L9/2894Details related to signal transmission in suction cleaners
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/0081Means for exhaust-air diffusion; Means for sound or vibration damping
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/10Filters; Dust separators; Dust removal; Automatic exchange of filters
    • A47L9/19Means for monitoring filtering operation
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/24Hoses or pipes; Hose or pipe couplings
    • A47L9/242Hose or pipe couplings
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/28Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
    • A47L9/2805Parameters or conditions being sensed
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/28Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
    • A47L9/2857User input or output elements for control, e.g. buttons, switches or displays
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B43WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43LARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
    • B43L21/00Blackboard or slate cleaning devices
    • B43L21/02Blackboard or slate cleaning devices with means for absorbing the chalk dust

Abstract

The present invention relates to a dust collecting apparatus for eraser or the like, by designing and disposing a set of dust-conducting pipes and components and an eraser outside the housing and putting them to connect with the housing. The interior of the housing consisting of a power supply automatic-safe-breaking device and lots of display lamps, controlling and collecting components are disposed at the related places of the invention for erasing something and collecting the dust in the classroom or the like.

Description

    TECHNICAL FIELD
  • The present invention relates to a dust collecting apparatus for eraser or the like dust producing or generating devices and to an eraser provided therewith. Particularly, a power supply automatic-safe-breaking device, lots of display lamps, controlling and collecting components disposed within the present invention by an optimum design for appropriate utilizing to erase something such as written letters, characters on the blackboard or the like without remains or contamination in the air. [0001]
  • BACKGROUND OF THE INVENTION
  • The conventional dust collecting apparatus or the like, having no power supply automatic-safe-breaking device, in which the power supply shall not be cut off since the said apparatus been using but had not continue been used for a long time. So the power supply of the said apparatus is still on, which may cause the said apparatus burning out. Furthermore, some users with no conscious about the said apparatus' latest or real situation when they use the said apparatus which also causing the said apparatus burning out or broken or unpredictable happened. This is necessary for researching, improving and disclosing in the present invention. [0002]
  • Accordingly, the inventor devoted himself to the designing and manufacturing of the dust-proof and peripheral products with his accumulated long-term experience, this a dust collecting apparatus for eraser is developed. [0003]
  • Accordingly, it is an object of the invention herein, a power supply automatic-safe-breaking device mounted on the housing for protecting the said apparatus. [0004]
  • Accordingly, it is another object herein, lots of functional display lamps and controlling components disposed on the housing or for reminding the user how is present and real situation and for working dust-inhaling in the said apparatus. [0005]
  • In order to describe in detail the objects, characteristics and functions of the present invention, an example of embodiment and figures, relevant of the present invention as follows:[0006]
  • DESCRIPTION OF THE FIGURES
  • FIG. 1 is the diagrammatic sketch of the entirely structure of the invention. [0007]
  • FIG. 2 is the diagrammatic sketch of front view of the housing [0008]
  • FIG. 3 is the diagrammatic sketch of perspective view of the housing [0009]
  • FIG. 4 is the diagrammatic sketch of fragmentary view of dust-collecting bag and straight pipe [0010]
  • FIG. 5 is the diagrammatic sketch of fragmentary view of straight pipe and connector [0011]
  • FIG. 6 is the diagrammatic sketch of combination of straight pipe and connector [0012]
  • FIG. 7 is the diagrammatic sketch of inhaling device d connector [0013]
  • FIG. 8 is the diagrammatic sketch of outlook view of eraser [0014]
  • FIG. 9 is the diagrammatic sketch of sectional view of eraser [0015]
  • FIG. 10 is the diagrammatic sketch of eraser and positioned tank [0016]
  • FIG. 11 is the diagrammatic sketch of combination of eraser and positioned tank [0017]
  • FIG. 12 is the diagrammatic sketch of practical example[0018]
  • DESCRIPTION OF TERMS
  • [0019] (10) external housing (101) power supply switch (102) sensing switch (103) operation display lamp (104) bag- swapping display lamp (105) power supply automatic cut- off display lamp (106) opening (11) door leaf (111) hollow hole (112) sticking belt (band) (12) straight pipe (121) joint end (13) jointing head (131) interlocking components (14) exhaust vent (15) muting device (16) external space (20) dust collecting bag (21) dust inlet (22) sticking surface (30) interior housing (31) interior space (32) sensing elements (321) sensing bar (33) inhaling components (331) base of housing (332) fan-extracting motor (333) muting device (334) outlet (335) filter (336) inlet (34) power supply automatic cut- off device (40) dust-conducting pipes and components (41) jointing head (50) eraser (501) capacity chamber (502) vacuum chamber (51) holder (511) starting button (512) stopping button (513) jointing head (514) digital wireless-remote controlling device (515) jointing pipe (52) dust-conducting base layer (521) dust-conducting tunnel (522) dust-conducting hole (53) connection panel (531) hollow hole (532) connection surface (54) erasing tissue (541) hollow hole (542) sticking surface (543) erasing surface (60) positioned tank (61) bottom chassis (62) convex pillar (621) edge opening section (63) elastic film
  • DETAILED DESCRIPTION OF THE PRESENT INVENTION
  • As follows, please refer to FIG. 1 shown as the present invention, a dust collecting apparatus for eraser is described. It consists of an eraser, a dust collecting bag ([0020] 20), a dust-conducting pies and components (40) and a housing structure which including an external housing (10) and an interior housing (30), in which;
  • Please refer to FIGS. 2, 3, and [0021] 4, the external housing (10) is fabricated by solidly jointing plates herein, a power supply switch (101), a sensing switch (102), an operation display lamp (103), a bag-swapping display lamp (104) and a power supply automatic cut-off display lamp (105) are disposed on one of front-lateral side of the external housing (10), as well as a certain place of the external housing (10) been opened a opening (106) for bag swapping (shown as FIG. 4). Also, a vacuum exhaust vent (14) is mounted on the bottom chassis external hosing (10) and a muting device (15) is disposed in the interior of external housing (10) for isolating and absorbing the noise came from the inhaling components or the like.
  • Please refer to FIGS. 2, 3 and [0022] 9, shown the power supply switch (101) and sensing switch (102) of the front-lateral side are correspondingly to connect the power supply and inhaling components (33). Of the power supply switch (101) is a manual-controlling type and its action dominates the entirely power supply on or off in the present invention. The sensing switch (102) and digital wireless-remote controlling device (514) are correspondingly and by means the said device (514) to transmit the signals onto the sensing switch (102) for switching the power of inhaling components (33) on or off. While the inhaling components (33) been operating that the operation display lamp (103) shows “green”, in contrast, the operation display lamp (103) shows “red”. For the bag-swapping display lamp (104) and sensing elements (32) are in the same controlling circuit loop, as the sensing elements (32) detects the dust collecting bag (20) of interior space (31) having accumulated a certain preset amount of dust and no more amount of dust can be inhaled. Under this circumstance, the vacuum value will up and reach a certain value, in which a signal will be generated from the sensing elements (32) and switching the bag-swapping display lamp (104) on for reminding the user renews a dust bag. For the power supply automatic cut-off display lamp (105), power supply automatic cut-off device (34) and power supply switch (101) are in the same controlled circuit loop, the function of power supply automatic cut-off will be operating and cut off the power when the user uses the said apparatus and then stops using it in a certain period that is over the preset timing. So the power supply automatic cut-off display lamp (105) will on for reminding the power of the said apparatus been totally cut off. The next user must turn on the power supply switch (101), then uses it again.
  • Please refer to FIGS. 3 and 4, the opening ([0023] 106) is designed for taking out or replacing the dust collecting bag (20). A door leaf (11) is disposed at opening (106) by bias-pivot rotating for closing or opening to protect the internal section of the housing.
  • Please refer to FIGS. 2, 3, [0024] 5 and 6, a hollow hole (111) is mounted on the middle of the door left (11), of the hollow hole (111) is for disposing a straight pipe (12). One end of the straight pipe (12) is inwardly to the housing and to interlock with dust collecting bag (20), the other end is outwardly to the housing and set a interlocking components (131). Of the outward end has a jointing head (13) to secure joint with the interlocking components (131) by means of a hooked-locked approach and to connect with dust-conducting pipes and components (40). The rear side of door leaf (11) has a hooked-surface sticking belt (112), as the sticking belt (112) and dust collecting bag (20) are struck on the sticking surface (22) that, also, shall be fixing and bounding the dust collecting bag (20), in which the sticking belt (112) is arranged at the surrounding of hollow hole (111) of the door leaf (11).
  • Please refer to FIG. 4, the dust collecting bag ([0025] 20) is a capillary-mesh-filter-layers-bag-like and made of ventilating materials only for the air passing through, not for dust or the like. Surrounding the outer of dust inlet (21) of dust collecting bag (20) is a sticking surface (22) with fluff materials or the like materials for using in dust collection. Since interlocked the dust collecting bag (20) and the straight pipe (12) of door leaf (11), the sticking surface (22) of dust inlet (21) and the sticking belt (112) of door leaf (11) will be adhered together for convenient taking off or replacing the dust collecting bag (20).
  • Please refer to FIG. 1, the dust-conducting pipes and components ([0026] 40) is using in as a conduit of dust collecting bag (20) for the dust blowing into. Of one end of dust-conducting pipes and components (40) joints to the jointing head (13) of straight pipe (12), and the other endjoints to one end of jointing pipe (515) (shown as FIG. 8), then put the other of jointing pipe (515) joint with the jointing head (513) of eraser (50). Thus a channel is formed for the dust being inhaled into the dust collecting bag (20).
  • Please refer to FIGS. 3 and 4, the external space ([0027] 16) is made of noise-proof materials and disposed in the interior of external housing (10). Of the said device is for absorbing the noises while the inhaling components (33) in operating, and the exhaust vent (14) is for exhausting the air while the inhaling components (33) is working and inhaling the air into.
  • Please refer to FIGS. 1, 3 and [0028] 4, the interior housing (30) is fabricated by a number of plates and arranged at the external space (16) of the external housing (10). Only one of lateral side of interior housing (30) is empty, means having no plate, to correspond the opening (106) for tightening and fixing proposals. As the opening (106) of external housing (10) being bias-pivot rotated and outwardly opened-unfolded, the interior space (31) of interior housing (30) is visible, wherein the inward end of jointing head (13) at the straight pipe (12) will lots easier joint with the dust collecting bag (20) which is placed at the interior space (31) of interior housing (30).
  • Please refer FIGS. 2, 3 and [0029] 4, the panel of interior housing (30), where a sensing elements (32), an inhaling components (33) and a power supply automatic cut-off device (34) are mounted on. The sensing bar (321) is disposed on the sensing elements (32) and pass through the upper panel of interior housing (30) to reach the deep place of interior space (31). For the sensing elements (32) and bag-swapping display lamp (104) are connected in the same circuit loop, as dust of the dust collecting bag (20) in the interior space (31) had been reached a certain amount, the filter layer of dust collecting bag (20), also, will be stuffy and causing the blowing-out air lessening and lessening. Under this circumstance, the inhaling components (33) is still going on the air inhaling, but the air is blocked by the filter-layer of dust collecting bag (20) that made the inhaling components (33) only can inhale the air of interior space (31) in. Since the vacuum-scale of interior space (31) up and up, meanwhile the sensing bar (321) of sensing elements (32) will going on detecting the vacuum-scale of interior space (31), until the said scale up to a certain value, then the sensing elements (32) shall transmit a signal to enlighten the bag-swapping display lamp (104) for reminding that is the time to renew a dust collecting bag (20).
  • Please refer to FIG. 7, surrounding the external circumference of the inhaling components ([0030] 33) is a base of housing (331) with its hollow structure where, a outlet (334) is set around and cycled the said housing (331), a muting device (333) is mounted in and around the interior circumference of the said housing (331), and a tank is set the central-middle of the said hosing (331) herein a muting device (333) mounted around the interior circumference of the tank and a fan-extracting motor (332), also is disposed in the tank, and a filter (335) is mounted at bottom of the hosing (331). The base of housing (331) is for shielding the fan-extracting motor (332) and the a muting device (333), of the muting device (333) is for absorbing the noises came from the operating fan-extracting motor (332), of the outlet (334) is for inhaling in the exhausted air while the fan-extracting motor (332) is operating, of the filter (335) is for filtering the inhaled air with tiny dusts while the fan-extracting motor (332) is working. Hence, a muting effect and no more floating dust shall come to and fill with the fan-extracting motor (332) or the interior section of base of housing (331).
  • Please refer to FIGS. 1, 3 and [0031] 4, the power supply automatic cut-off device (34) is for prolonging the lifecycle of this a dust collecting apparatus for eraser. Means the power supply switch (101) is on, but the said apparatus been stopped using for a while, so the power of the said apparatus is still on that may shorten its life. Under this circumstance, a preset timing has been set in the power supply automatic cut-off device (34) for cutting off the power supply since the suspended period of the said apparatus is over.
  • Please refer to FIGS. 8 and 9, the eraser ([0032] 50) is divided into two compartments, one is holder (51) and the other one is erasing tissue (54), in which:
  • The holder ([0033] 51) is a housing with hollow structure in its interior and bottom, so a capacity chamber (501) and a vacuum chamber (502) are easier been mounted in its compartment. A starting button (511) and stopping button (512) are disposed on the bottom surface of the holder (51), a jointing head (513) is disposed on the terminate end of holder (51), and a dust-conducting base layer (52) is allocated on the bottom section of holder (51) where a connection panel (53) interlocked with the bottom surface of dust-conducting base layer (52).
  • Please refer to the FIGS. 8 and 9, the capacity chamber ([0034] 501) is for placing the digital wireless-remote controlling device (514), of the digital wireless-remote controlling device (514) is corresponding to the sensing switch (102) and is switching on/off and transmitting the signal thereto the sensing switch (102) for remote controlling the operation and stop of the inhaling components (33). As respective pressing a touch on the starting button (511) stopping button (512), the digital wireless-remote controlling device (514) will be controlled by them and to distal govern the inhaling components (33) is on or stop working. For the vacuum chamber (502) and jointing head (513) are conductive, as the dust is blowing into vacuum chamber (502) which will take this advantage and blowing out from jointing head (513), then renter into jointing pipe (515).
  • Please refer to FIG. 9, the central of one side of dust-conducting base layer ([0035] 52) been opened as slot for mounting a dust-conducting hole (522), the panel of dust-conducting base layer (52) been opened for mounting lots of dust-conducting tunnel (521) with radiated arrangement and concentrated to the central of the dust-conducting base layer (52), of the dust-conducting tunnel (521) and dust-conducting hole (522) are intersected and to form a space for introducing the dust. The dust-conducting hole (522) of dust-conducting base layer (52) is corresponding to the vacuum chamber (502) of holder (51), means the said dust will float through the dust-conducting tunnel (521), the dust-conducting hole (522), then reach vacuum chamber (502).
  • The bottom of dust-conducting base layer ([0036] 52) is to connect a connection panel (53), of its dimension is the same as the erasing tissue (54). Several hollow hole (531) are allocated on the connection panel (53), and one surface of connection panel (53) is with hooked-like and as the connection surface (532) for sticking the erasing tissue (54), of the hollow hole (531) are as conduits for the dust.
  • Again, please refer to FIG. 9, one surface of erasing tissue ([0037] 54) is the sticking surface (542) with fluff materials, the other surface is the erasing surface (543) and lots of hollow hole (541) on it. Sticking the erasing tissue (54) and connection panel (53) by means of the connection surface (532) of connection panel (53) to corresponding adhere on the sticking surface (542). The erasing surface (543) of erasing tissue (54) is for erasing something during its up and down operation on the desired place by pressing the erasing tissue (54), where the hollow hole (541) will be inlet of dust and those dusts will be inhaled into the inhaling components (33) with is strong suction power and forward to dust collecting bag (20), hence the hollow hole (541) will be the first conduit of dusts.
  • For the erasing tissue ([0038] 54) and connection panel (53) are adhered together, as the erasing tissue (54) is broken or exhausted or other else which can be torn off for convenient renewing a new erasing tissue (54) anytime.
  • Please refer to FIGS. 10 and 11, a positioned tank ([0039] 60) is set below a blackboard and a convex pillar (62) is set at the bottom chassis (61) of positioned tank (60). The convex pillar (62) with hollow shape and a elastic film (63) is mounted on its edge opening section (621), of the convex pillar (62) been aligned and to respond the every hollow hole (541) of erasing tissue (54), where for placing the retired eraser (50) at the positioned tank (60).
  • Please refer to FIGS. 1, 2, [0040] 8 and 9, since switched the power supply switch (101) of external housing (10) to “on” position, the power supply will be conducting to the said a dust collecting apparatus for eraser under a standby status. As the eraser (50) being using to erase something, by a slight pressing to the starting button (511) of holder (51) where a start signal will soon be transmitted via digital wireless-remote controlling device (514) onto and received by the sensing switch (102), then a command will be transmitted and reach the inhaling components (33) for commanding the inhaling components (33) going on air-inhaling, so the dusts generated from the operating of the erasing will be inhaled into the inhaling components (33) and inwardly into the dust collecting bag (20) of interior housing (30).
  • Please refer to FIG. 9, the dusts must enter the hollow hole ([0041] 541) of erasing tissue (54) at first and then pass the dust-conducting tunnel (521), dust-conducting hole (522) through vacuum chamber (502). As the dusts reach the vacuum chamber (502), of them will via a opening and then enter the jointing pipe (515), pass through the dust-conducting pipes and components (40), lastly the said dusts will be inhaled into the dust collecting bag (20).
  • Please refer to FIGS. 10, 11 and [0042] 12, for the shape of blackboard in the classroom is rectangle. The length of jointing pipe (515) may be too long and more inconvenient for the user if only an eraser being or been used in the classroom, so two erasers (50) will be appreciated. But, when the two erasers (50) been using at the classroom, as one of eraser (50) is on duty for erasing something by pressing the starting button (511) for starting the inhaling components (33) on duty, the eraser (50) will be operating the dust-inhaling. The other not on duty eraser (50) shall take action as the duty one eraser (50) does, for the real situation is that only a eraser (50) is erasing something but the other eraser (50) is operating its dust-inhaling, which making the function of dust-inhaling is not very effective. So a solution is that, as one eraser been using on its duty and the other eraser will be placed at positioned tank (60) on its free by its hollow hole (541) of erasing tissue (54) to correspond the convex pillar (62) of 60 for placing into the positioned tank (60). As one of eraser (50) is on duty, the other free eraser (50) and taking dusts-inhaling either. But the fee eraser (50) will inhale the edge opening section (621) of convex pillar (62) as air-flowing to project the edge opening section (621) as a ball like for blocking the conduit of eraser (50), hence the eraser (50) can not be in vacuum as well as the function of dusts-inhaling is as normal.
  • Accordingly, the above description is inventive that conforms the requirements of Patent Law. [0043]

Claims (10)

What is claimed is
1. A dust collecting apparatus for eraser, mainly including:
A housing structure fabricated by plate members which divided into two compartments, external housing and interior housing, herein
A set of inhaling components mounted in external housing and at the bottom place of internal housing,
A dust collecting bag placed in the external housing and interlocked with the straight pipe of door leaf,
A set of dust-conducting pipes and components, and
An eraser by means of the jointing pipe allocated at its opening to interlock the dust-conducting pipes and components;
Of the characteristics as follows:
A muting device disposed in the interior of external housing and lots of switches, display lamps mounted on one of front-lateral side of the said device; an interior housing disposed in the external housing, where a set of inhaling components, sensing elements and power supply automatic cut-off device mounted in the interior housing;
A set of interlocking components allocated at one end of straight pipe, by means of a certain section of the said components to interlocked the jointing head for hooking-locking the jointing head;
The eraser divided into two portions, holder and erasing tissue herein, one of side of the tissue having fluffy surface for adhering with the connection panel of the said holder, and lots of hollow holes arranged in the said tissue; a set of starting and stopping button disposed at the bottom place of the said holder; the bottom chassis of the said holder defined as a dust-conducting base layer, a connection panel disposed on the bottom surface of the said layer herein, one surface of the said panel is hooked-like and having a sheet of sticking belt (band) and numbers of hollow holes to correspondingly adhere upon the fluffy surface of the said tissue;
A positioned tank arranged at a certain bottom place of blackboard for placing the said eraser.
2. According to claim 1, the muting device by means of cotton or the alike materials for isolating and absorbing the noise came the operating of the said inhaling components.
3. According to claim 1, the front-lateral panel of the said external disposed kinds of switches and lamps are power supply switch, sensing switch, bag-swapping display lamp, power supply automatic cut-off lamp and operation display lamp.
4. According to claim 1, the power supply automatic cut-off device for the user using the said apparatus, then stopping using and suspending over a preset timing but forgot turning the power whenever, the power supply will be automatic cut off and reswitched on by the next user who needs using.
5. According to claim 1, a muting device disposed in the said inhaling components for absorbing the noise came from the running motor of the said inhaling components, of the said device can be using in the classroom or the like.
6. According to claim 1, the sensing components connected with the bag-swapping display lamp, means when the sensing elements detecting the vacuum scale of the interior housing reaching above a certain preset value whenever, the sensing elements transmitting a signal thereto and enlightening the bag-swapping display for reminding the user renews a dust collecting bag.
7. According to claim 1, hollow holes of the eraser's tissue and the holder 's bottom surface are correspondingly, adhering the erasing tissue on the bottom surface of the holder when the inhaling components is operating to inhale something where, all of hollow holes can be as channels for the eraser to inhale the dust into, therefor as the eraser is damaged or unavailable in which the used eraser can be torn off for replacing a new one.
8. According to claim 1, a set of starting and stopping buttons allocating on a certain place of the said holder, of them respective connecting with the digital wireless-remote controlling device which also corresponding to the sensing switch for controlling the inhaling components by slightly pressing the starting/stopping button a touch, where a signal via the digital wireless-remote controlling device and transmitting the said signal onto the sensing device for controlling the inhaling components on duty/free.
9. According to claim 1, a number of convex pillars with hollow structure disposed on the bottom chassis of the positioned tank where, a elastic film disposed on the bottom edge of every convex pillar.
10. According to claim 1, a set of interlocking components mounted at one end of the straight pipe for securely interlocking the straight pipe and the jointing head by a hooked-locking approach.
US09/922,681 2001-08-07 2001-08-07 Dust collecting apparatus for eraser Abandoned US20030033686A1 (en)

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070234498A1 (en) * 2006-04-07 2007-10-11 Valerie Mornet Warner Chalk and dry marker eraser roller
CN103660735A (en) * 2013-12-25 2014-03-26 苏州市职业大学 Intelligent active dust absorbing blackboard
CN104044389A (en) * 2014-07-09 2014-09-17 安徽康成工业产品设计有限公司 Blackboard eraser capable of sucking dust synchronously
CN104324910A (en) * 2014-09-28 2015-02-04 河南重工起重机集团有限公司 Dust detecting and dust removing system special for crane
WO2015016355A1 (en) * 2013-08-02 2015-02-05 株式会社マキタ Dust collector
JP2015030060A (en) * 2013-08-02 2015-02-16 株式会社マキタ Dust collector
CN106346994A (en) * 2016-09-12 2017-01-25 芜湖能盟信息技术有限公司 Dust-free blackboard eraser
CN106346996A (en) * 2016-09-12 2017-01-25 芜湖能盟信息技术有限公司 Blackboard electric dust removal device
CN108928166A (en) * 2018-09-01 2018-12-04 都函 A kind of intelligent tutoring blackboard
US10444720B2 (en) 2017-07-05 2019-10-15 Milwaukee Electrical Tool Corporation Adapters for communication between power tools

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070234498A1 (en) * 2006-04-07 2007-10-11 Valerie Mornet Warner Chalk and dry marker eraser roller
US10369644B2 (en) 2013-08-02 2019-08-06 Makita Corporation Dust collector
US10307842B2 (en) 2013-08-02 2019-06-04 Makita Corporation Dust collector
US9962781B2 (en) 2013-08-02 2018-05-08 Makita Corporation Dust collector
WO2015016355A1 (en) * 2013-08-02 2015-02-05 株式会社マキタ Dust collector
JP2015030060A (en) * 2013-08-02 2015-02-16 株式会社マキタ Dust collector
US10486252B2 (en) 2013-08-02 2019-11-26 Makita Corporation Dust collector
CN103660735A (en) * 2013-12-25 2014-03-26 苏州市职业大学 Intelligent active dust absorbing blackboard
CN104044389A (en) * 2014-07-09 2014-09-17 安徽康成工业产品设计有限公司 Blackboard eraser capable of sucking dust synchronously
CN104324910A (en) * 2014-09-28 2015-02-04 河南重工起重机集团有限公司 Dust detecting and dust removing system special for crane
CN106346994A (en) * 2016-09-12 2017-01-25 芜湖能盟信息技术有限公司 Dust-free blackboard eraser
CN106346996A (en) * 2016-09-12 2017-01-25 芜湖能盟信息技术有限公司 Blackboard electric dust removal device
US10444720B2 (en) 2017-07-05 2019-10-15 Milwaukee Electrical Tool Corporation Adapters for communication between power tools
CN108928166A (en) * 2018-09-01 2018-12-04 都函 A kind of intelligent tutoring blackboard

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