Breakstem riveting tool with stem disposal device
US4275583A · kind A · utility
Inventors
Key dates
| Filing date | Oct 12, 1979 |
| Grant date | Jun 30, 1981 |
| Priority date | — |
| Expiry date | Oct 12, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/53748
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A blind riveting tool head for placing blind breakstem rivets is provided with a stem-disposal device which comprises a flexible hose connected to the rear end of a passage running rearwardly through the head from the rivet-placing jaws. An air injector at the junction of the head and the hose supplies both a flow of air rearwardly along the hose to assist broken-off stem portions rearwardly therealong, and also a flow of air forwardly along the passage through the head. When the tool head is operated to place a rivet, both airflows are shut off as the rivet-placing jaws approach their rearmost position, and thereafter the rearward airflow along the hose is re-established before the forwards airflow along the passage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.