Safety device for a workpiece holder
US4337932A · kind A · utility
10Cited by
7References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 25, 1980 |
| Grant date | Jul 6, 1982 |
| Priority date | — |
| Expiry date | Jun 25, 2000 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29D30/12
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A workpiece holder (10) having a plurality of elements (38) movable radially outwardly into engagement with an inner surface of a workpiece (74) in response to movement of a cam (48) and includes at least one spring-actuated latch (56) which engages the cam (48) and prevents disengagement of the workpiece holder (10) from the workpiece (74) during operation of the workpiece holder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.