Marker compass
US4106200A · kind A · utility
Inventor
Key dates
| Filing date | Mar 7, 1977 |
| Grant date | Aug 15, 1978 |
| Priority date | — |
| Expiry date | Mar 7, 1997 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB43L9/02
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A marker compass assembly including a leg of fixed length. A cross-arm is pivotally mounted to one end of the leg. The other end of the leg is structured to facilitate positioning at a desired location on a surface to be marked. A retainer/cap is affixed to the end of the cross-arm distal from the leg and has a recess therein to receive and frictionally engage with either end of a marker body of fixed length. The leg has a predetermined length so that when the marker is held in the retainer/cap with the marker surface exposed and the leg is positioned at the desired location on the surface to be marked, the marker will be in position to mark the surface. Pivoting of the cross-arm will adjust the position of the marker tip relative to the positioned end of the leg on the surface thereby determining the radius of the arc that is to be drawn.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.