Fixing member comprising an integrity control system
US7246980B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 7, 2003 |
| Grant date | Jul 24, 2007 |
| Priority date | — |
| Expiry date | Aug 7, 2023 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16B41/005
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The invention concerns a fastening member comprising a threaded part (150) and a head (100) with which the threaded part can be turned in order to tighten the fastening member in a corresponding element. The head (100) is formed of a plate (110) in one piece with the threaded part (150) and a cap (120) covering said plate. The cap (120) comprises a recessed portion (121) in which an offset is provided to form a housing (128). The plate (110) comprises a guide finger (111) located inside the housing (128) to form a stop against which the cap presses in order to impart a rotational movement to the plate in the tightening direction. The cap (120) further comprises a remotely interrogatable electronic component (130) comprising a data storage means (132). Said component is held in the recessed portion (121) with its end (133) protruding into the housing (128) so as to strike against the guide finger (111) and cause the fracture of the component when any attempt is made to unscrew or untighten the fastening member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.