Workpiece holder
US4574461A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 26, 1984 |
| Grant date | Mar 11, 1986 |
| Priority date | — |
| Expiry date | Jul 26, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T279/35
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A workpiece holder module for handling annular seals comprising a retainer module, a motor positioned beneath the module and having a hollow drive shaft extending upwardly and drivingly into the bottom of the module, and an air supply structure including a hollow column fixedly and centrally positioned beneath the motor with its upper end rotatably and sealingly receiving the lower end of the hollow motor drive shaft. The retainer module includes an upwardly opening cup-shaped casing centrally receiving the upper end of the hollow motor drive shaft, a resilient retainer ring positioned on the upper annular edge of the casing sidewall, and a central plug member secured to the upper end of a central post portion upstanding from the base portion of the casing. The annular seal includes an outer metallic ring adapted to be frictionally retained within the resilient retainer ring and an inner elastomeric ring adapted to seat on the central plug member. The motor may be actuated to spin the retainer module and thereby the retained seal to facilitate a work operation on the seal, and pressurized air may be routed upwardly through the hollow column and through the hollow motor drive shaft …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.