Mandrel with expandable high temperature elastomeric polymer disk and process for using mandrel
US5320364A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 23, 1992 |
| Grant date | Jun 14, 1994 |
| Priority date | — |
| Expiry date | Dec 23, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T279/1066
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A mandrel for transporting a hollow cylinder including an elongated arm having an imaginary axis, an expandable disk shaped member having at least one hole and a circular outermost edge, the disk shaped member being mounted on and coaxially aligned with one end of the arm and including an elastomeric polymer material having a durometer of between about 25 and about 35 and a maximum continuous use temperature rating of at least about 230.degree. C., and means mounted on the mandrel to apply compressive pressure to the disk shaped member to increase the length of the circumference of the circular outermost edge. This mandrel is used in a process for coating hollow cylinders.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.