Line level
US5659967A · kind A · utility
17Cited by
9References
24Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 14, 1995 |
| Grant date | Aug 26, 1997 |
| Priority date | — |
| Expiry date | Jul 14, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C9/28
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A line level comprises a hollow housing having a pair of end portions and a sight opening formed therein. A liquid level indicator has a pair of closed end walls and is observable through the sight opening is slidably received in the housing. A line engaging retainer arrangement is slidable into an interference fit in each of the open end portions of the housing and is engageable with each of the closed end walls of the liquid level indicator for maintaining the position of the liquid level indicator relative to the sight opening in the housing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.