Anti-friction worm and wheel drive
US4006646A · kind A · utility
5Cited by
8References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 9, 1975 |
| Grant date | Feb 8, 1977 |
| Priority date | — |
| Expiry date | Sep 9, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/19977
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A worm-wheel assembly wherein anti-friction balls are recirculated through elical grooves in the worm to increase the efficiency of the driving operation. This driving system is believed to have the advantages of good distribution of load forces, smooth and silent operation, very great speed reduction, high force transmission efficiency, and long service life.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.