Rule assembly with hook bend protection
US6282808A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 4, 1999 |
| Grant date | Sep 4, 2001 |
| Priority date | — |
| Expiry date | Aug 4, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01B2003/1053
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A rule assembly includes a housing assembly and a reel rotatably mounted in the housing assembly. An elongated blade formed of a ribbon of metal having one end connected to the reel extendable outwardly through a spaced opening in the housing assembly. An end hook member on the free end of the blade includes a hook portion and a mounting portion extending generally perpendicular from the hook portion. The housing opening has a height dimension which exceeds the height dimension of the hook member mounting portion and its connection with the free end of the blade an amount which is at least approximately equal to an amount the hook portion extends below the bottom end surface of the housing assembly when at the housing opening.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.