Toy-like instrument for drawing circles

Details Toy-like instrument for drawing circles Toy-like instrument for drawing circles

1980-10-24

1982-10-12

Haroian, Harry N.

Geometrical instruments

Scriber

Curved line

B43L 904

Patent

active

043531660

ABSTRACT:
A device for drawing circles is provided which is compact in form and has no sharp points. The device is comprised of a disk rotatably carried on a sheet adjacent and concentric to a hole in the sheet. The disk and sheet each have a series of holes therein spaced from a center point of the disk into which the tip of suitable writing instrument may be placed to rotate the disk or sheet with respect to the other, thus inscribing a circle on a desired surface.

REFERENCES:
patent: 1154673 (1915-09-01), Van Ness
patent: 1307233 (1919-06-01), Bernard
patent: 2190071 (1940-02-01), Keppers
patent: 2624117 (1953-01-01), Paci
patent: 3460261 (1969-08-01), Frey
patent: 4129948 (1978-12-01), Hatter et al.
patent: 4158257 (1979-06-01), Kupperman et al.

Affiliated with

Also associated with

Rating

Toy-like instrument for drawing circles does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Toy-like instrument for drawing circles, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Toy-like instrument for drawing circles will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-217866