Versatile expanding apparatus for tubes and the like
US4099400A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 21, 1977 |
| Grant date | Jul 11, 1978 |
| Priority date | — |
| Expiry date | Mar 21, 1997 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21D39/10
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An apparatus for expanding an end portion of a tube positioned within an opening defined by an outer member is disclosed. Such apparatus comprises a generally elongated first housing having one end portion adapted to be inserted into the tube including a plurality of rollers, mounted in the housing for expanding the end portion of the tube outwardly in engaged relation with peripheral portions of the outer member forming the opening and for developing forces directed axially into the tube. A mandrel having a taper opposite that of the rollers is positioned therebetween and inserted in the first housing to operatively cooperate with the rollers to outwardly expand the tube and develop generally axial and inward forces. A second housing is adapted to be securedly positioned along pre-selected locations of the first housing and having at least a first open end portion which faces the outer member and the end portion of the tube. A reversible collar member having first and second free end portions is adapted to be removably positioned within the opening of the second housing in at least one of two positions. In the first position, the first free end portion is configured to be engaged …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.