Wireless blackboard eraser and dust collector

Details Wireless blackboard eraser and dust collector Wireless blackboard eraser and dust collector

2007-05-29

2007-05-29

Redding, David (Department: 1744)

Brushing, scrubbing, and general cleaning

Machines

With air blast or suction

C015S403000

Reexamination Certificate

active

10420871

ABSTRACT:
The present invention provides a battery-operated blackboard eraser and dust collector, which is composed of a shell body, an air blower, and an erasing plate set. The air blower is installed inside the shell body and the erasing plate set is disposed under the shell body. The eraser shell consists of a piece of erasing cloth, a piece of air-permeable sponge, a base plate, and a group of air-permeable papers.

REFERENCES:
patent: 3728847 (1973-04-01), Howard et al.
patent: 4204298 (1980-05-01), Handa et al.
patent: 4941225 (1990-07-01), Liao
patent: 4955996 (1990-09-01), Edwards et al.
patent: 5655253 (1997-08-01), Nevin et al.
patent: 6488731 (2002-12-01), Schultheiss et al.
patent: 6564415 (2003-05-01), Katakura et al.
patent: 6772472 (2004-08-01), Wang
patent: 2003/0037404 (2003-02-01), Wu et al.

Affiliated with

Also associated with

Rating

Wireless blackboard eraser and dust collector does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Wireless blackboard eraser and dust collector, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Wireless blackboard eraser and dust collector will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3743031