Self adjusting mandrel with expandable elastomeric disk and process for using mandrel
US5322300A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 23, 1992 |
| Grant date | Jun 21, 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 including an elongated arm having a first end and a second end, a reciprocatable shaft coaxially aligned with and extending through the arm, a first end of the shaft extending beyond the first end of the arm and a second end of the shaft extending beyond the second end of the arm, a presser means mounted at the first end of the shaft, an expandable disk shaped member coaxially aligned with and slidably mounted on the shaft between the presser means and the first end of the arm, a compression means mounted on the second end of the shaft, and a resilient helical spring coaxially aligned with and slidably mounted on the shaft between the presser means and the compression means, the compression means adopted to apply compression pressure to the disk shaped member and to the helical spring. This mandrel is used in a process for coating hollow cylinders.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.