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1. WO1996027504 - IMPROVED INSTRUMENTS FOR DRAWING CIRCLES

Publication Number WO/1996/027504
Publication Date 12.09.1996
International Application No. PCT/US1996/002717
International Filing Date 29.02.1996
Chapter 2 Demand Filed 11.07.1996
IPC
B43L 9/00 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
43WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
LARTICLES FOR WRITING OR DRAWING UPON; ACCESSORIES FOR WRITING OR DRAWING
9Circular curve-drawing or like instruments
B43L 13/20 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
43WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
LARTICLES FOR WRITING OR DRAWING UPON; ACCESSORIES FOR WRITING OR DRAWING
13Drawing instruments, or writing or drawing appliances or accessories, not otherwise provided for
20Curve rulers or templets
CPC
B43L 13/205
BPERFORMING OPERATIONS; TRANSPORTING
43WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
LARTICLES FOR WRITING OR DRAWING UPON; ; WRITING OR DRAWING AIDS;; ACCESSORIES FOR WRITING OR DRAWING
13Drawing instruments, or writing or drawing appliances or accessories not otherwise provided for
20Curve rulers or templets
201Stencils for drawing figures, objects
205geometrical figures
B43L 9/007
BPERFORMING OPERATIONS; TRANSPORTING
43WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
LARTICLES FOR WRITING OR DRAWING UPON; ; WRITING OR DRAWING AIDS;; ACCESSORIES FOR WRITING OR DRAWING
9Circular curve-drawing or like instruments
007with perforated or marked rulers
Applicants
  • SAFE-T PRODUCTS, INC. [US]/[US]
Inventors
  • STONEBERG, Bruce
Agents
  • SUFRIN, Barry, W.
Priority Data
08/399,43907.03.1995US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) IMPROVED INSTRUMENTS FOR DRAWING CIRCLES
(FR) INSTRUMENTS PERFECTIONNES SERVANT AU TRACE DE CERCLES
Abstract
(EN)
A device for forming circles on a drawing surface that includes, in part, a first rotatable member (12) and a second rotatable member (14). The first rotatable member is substantially flat and includes an opening found therein. The second rotatable member is resiliently disposed within the opening. A first means (16) elevates the first rotatable member above the drawing surface to prevent smearing of lines on the surface. A second means elevates the second rotatable member above the drawing surface to prevent smearing of lines on the surface and to engage the surface for stabilizing the rotatable member over the surface. The second mechanism elevates the second rotatable member to approximately the same level as the first rotatable member. A plurality of holes are disposed in the first and second rotatable members. The holes accommodate a marking instrument used for forming the circles.
(FR)
Cette invention concerne un dispositif permettant de former des cercles sur une surface de dessin et comprenant, en partie, un premier élément rotatif (12) et un second élément rotatif (14). Le premier élément rotatif est pratiquement plat et pourvu d'une ouverture qui y est ménagée. Le second élément rotatif est placé par contact élastique à l'intérieur de l'ouverture. Un premier organe (16) soulève le premier élément rotatif au-dessus de la surface de dessin de façon à éviter de souiller les lignes sur ladite surface. Un second organe soulève le second élément rotatif au-dessus de la surface de dessin de façon à éviter de souiller les lignes sur ladite surface et de façon à entrer en contact avec la surface pour stabiliser l'élément rotatif au-dessus de ladite surface. Le second mécanisme permet de soulever le second élément rotatif approximativement au même niveau que le premier élément rotatif. Les premier et second éléments rotatifs sont pourvus d'une pluralité de trous à l'intérieur desquels on peut loger un instrument marqueur servant à dessiner les cercles.
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