Dust collecting apparatus for eraser

• US 20030033686A1
• Filed: 08/07/2001
• Published: 02/20/2003
• Est. Priority Date: 08/07/2001
• Status: Abandoned Application

• Current Assignee: Te-Hsi Liu
• Original Assignee: Te-Hsi Liu
• Inventors: Liu, Te-Hsi
• Application Number:
  US09/922,681
• Publication Number:
  US 20030033686A1
• Time in Patent Office: Days
• US Class Current: 15/314
• CPC Class Codes: A47L 9/0081 Means for exhaust-air diffusion; Means for sound or vibration damping
• CPC Class Codes: A47L 9/19 Means for monitoring filtering operation
• CPC Class Codes: A47L 9/242 Hose or pipe couplings
• CPC Class Codes: A47L 9/2805 Parameters or conditions being sensed
• CPC Class Codes: A47L 9/2857 User input or output elements for control, e.g. buttons, switches or displays
• CPC Class Codes: A47L 9/2894 Details related to signal transmission in suction cleaners
• CPC Class Codes: B43L 21/02 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.

Claims

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.