Magnetic display device

Details Magnetic display device Magnetic display device

1992-04-01

1993-02-16

O'Connor, Cary E.

Education and demonstration

Means for demonstrating apparatus, product, or surface...

Chalkboard or equivalent means having easily erasable surface

40240, 40426, 40449, 434408, B43L 100

Patent

active

051866315

ABSTRACT:
A magnetic display device having a case in which a magnetic display panel is fixedly mounted. To erase the magnetic display on the display panel, an eraser magnet mounted on a vertically elongated eraser mounting member is moved horizontally along the rear surface of the display panel, by means of a knob projecting forwardly from the mounting member. The case has a rear frame on the forward side of which are provided a pair of parallel horizontal racks. The eraser mounting member has on the rear surface thereof a pair of rotatable pinions which mesh with the racks, respectively. As the mounting member is manipulated horizontally by means of the knob, the pinions rotate along the respective racks and the mounting member is moved smoothly in the horizontal direction.

REFERENCES:
patent: 2779107 (1957-01-01), Brace
patent: 4143472 (1979-03-01), Murata
patent: 4288936 (1981-09-01), Okutsu
patent: 4675476 (1987-06-01), Kobayashi
patent: 4797106 (1989-01-01), Umehara et al.
patent: 4804327 (1989-02-01), Miller
patent: 5057363 (1991-10-01), Nakanishi

Affiliated with

Also associated with

Rating

Magnetic display device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Magnetic display device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnetic display device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2144920