Patent · US Expired

Compass with adjusting means

US6003231A · kind A · utility

2Cited by

9References

26Claims

0Family size

Assignee

J.S. STAEDTLER GMBH & CO. KG · DE

Inventors

Christain Leibeck · Nürnberg, DE
Peter Weiss · Neuss, DE
Helmut Hufnagl · Schwarzenbruck, DE

Key dates

Filing date	Aug 29, 1997
Grant date	Dec 21, 1999
Priority date	—
Expiry date	Aug 29, 2017

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB43L9/22
WIPO fieldOther consumer goods
WIPO sectorOther fields

Abstract

A compass with an adjusting mechanism for adjusting the compass legs and for changing the distance between the compass points, wherein each compass leg includes a pivot bearing and an adjustment bearing. Each compass leg is constructed as a two-armed lever, wherein a first lever arm of each lever extends along the compass leg axis from the pivot bearing to the compass leg point, on the one hand, and a second lever arm extends from the pivot bearing to the compass arm end. The adjustment bearing, or a tilting bearing constructed as the adjustment bearing, is arranged in the second lever arm of each two-armed lever forming a compass leg.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.