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US 4,903,522 AGranted
Pop riveter tool
OwnerThomas Millerinventor
Life of this patent
Estimating the term…
Abstract
The present invention relates to a riveting station including a hand-held tool for installing break stem fasteners. The tool has a vacuum ejection system for removing broken-off stems. The ejection system comprises a bore in the tool communicating with a source of vacuum air and a control device for applying the vacuum for a set period of time. The tool in a preferred embodiment also includes a system for feeding air through the bore to promote self-cleaning of the tool and/or substantially prevent popping of the fastener when the fastener is incorrectly positioned.
Claims10
A riveting station which comprises:
- a hand-held tool for installing break stem fasteners;
- said tool having a housing and means for grasping the stem of the fastener;
- means for ejecting said stem after said fastener has been installed;
- said ejecting means including a bore in said housing and a source of vacuum air communicating with said bore to suck said stem out of said bore;
- and
- means for applying said vacuum air to said bore for a timed period comprising a vacuum transducer, valve means for providing air to said transducer for said timed period, and
- a timing device for supplying a timed flow of pilot air to said valve means.
4 more elements
A riveting station which comprises:
- a hand-held tool for installing break stem fasteners;
- said tool having a housing and means for grasping the stem of the fastener;
- means for ejecting said stem after said fastener has been installed;
- said ejecting means including a bore in said housing and a source of vacuum air communicating with said bore to suck said stem out of said bore;
- means for applying said vacuum air to said bore for a timed period;
- and
- means for delivering a flow of air to said bore prior to application of said vacuum air to substantially prevent a fastener from being popped when it is in an improper position and for promoting self-cleaning of said tool.
4 more elements
Dependencies are inferred from the claim text.