Blind fastener setting tool
US7055393B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 14, 2003 |
| Grant date | Jun 6, 2006 |
| Priority date | — |
| Expiry date | Jul 14, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21J15/043
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
There is provided a blind fastener setting tool (12) which has a front end face (218) against which a blind fastener (14) is held during a conventional setting operation and which further has a piezo-electric thin film load measuring device (222) mounted on this front face so as to be disposed and compressed between the front face (218) and a flange (122) of the fastener (14) during the setting operation so as to record a low voltage electrical signal indicative of the load being exerted thereon.There is further provided a method of measuring such load during the setting of a blind fastener by positioning a piezo-electric thin film load measuring device between a setting tool and a fastener and subsequently measuring a low voltage signal created as a result of deformation of the piezo-electric thin film during the setting operation and analysing this signal as indicative of the load exerted on the fastener.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.