Tube end expander and method of operating the same
US4319472A · kind A · utility
9Cited by
6References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 7, 1980 |
| Grant date | Mar 16, 1982 |
| Priority date | — |
| Expiry date | Mar 7, 2000 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21D39/10
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A tube end expander and a method of operating the same. The tube end expander comprises a rotatable, tubular cage defining a plurality of generally axially extending slots, and a plurality of rollers located within the cage and extending through the slots. The expander further comprises a rotatable, tapered mandrel axially extending into the cage in frictional, driving contact with inner surfaces of the rollers, and an auxiliary roller drive for transmitting rotary motion from the mandrel to the cage and rollers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.