Compass
US3949483A · kind A · utility
12Cited by
2References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 9, 1974 |
| Grant date | Apr 13, 1976 |
| Priority date | — |
| Expiry date | Sep 9, 1994 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C17/08
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Spatially adaptable support means for orienting the compass card immersed in damping fluid within a spherical housing of a magnetic compass to a horizontal plane during installation in any given mounting surface, comprising a movable compass card support unit and means for adjustably selectively positioning the support unit relative to the mounting plane and the sphere thereby positioning the card in its horizontal plane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.