Combination plumb/level instrument for a try square
US4964219A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 6, 1989 |
| Grant date | Oct 23, 1990 |
| Priority date | — |
| Expiry date | Feb 6, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C9/24
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A combination plumb/level device for removable attachment to a try square of magnetizable material to enable the square to be used as a level or a plumb. The device comprises a spirit level, and a holder for the level. The holder has a magnet associated therewith for magnetically gripping one face of a standard, unaltered leg of the try square with the level oriented relative to the face. The magnet associated with the holder is engageable with an edge of the standard, unaltered leg and orients the level with respect to the edge, enabling flatwise application of the other face and edges of the try square to a surface whereby the try square may be used to ascertain level or plumb positions. Other embodiments, including those directed to a device adapted for removable attachment to a try square of non-magnetizable material, are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.