Direct drive system for a turbine sander
US4414782A · kind A · utility
4Cited by
3References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 1, 1981 |
| Grant date | Nov 15, 1983 |
| Priority date | — |
| Expiry date | Sep 1, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T403/75
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A turbine-driven sander includes a direct drive system in which a one-piece thermoplastic shaft is rotatably journalled in a housing and mounts a two-piece turbine at one end and a counterweight and bushing at the other end. A machine screw is inserted through a longitudinal clearance bore in the shaft and clamps the turbine halves, shaft, counterweight and bushing together. The bushing is in turn pressed into a ball bearing, which is mounted in a platen. When the turbine rotates, the platen is oscillated, balanced by the counterweight.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.