Method for regenerating mandrel made of thermally expandable fluororesin
US5160671A · kind A · utility
7Cited by
9References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 16, 1991 |
| Grant date | Nov 3, 1992 |
| Priority date | — |
| Expiry date | Oct 16, 2011 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29K2027/18
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method for regenerating a used mandrel made of a fluororesin, includes the steps of heating the mandrel under substantially unloaded conditions to a temperature above the temperature at which the fluororesin is crystallized and gradually cooling the mandrel to a temperature below the temperature at which the fluororesin is crystallized.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.