Anti-friction screw and nut assembly
US4259949A · kind A · utility
21Cited by
10References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 6, 1979 |
| Grant date | Apr 7, 1981 |
| Priority date | — |
| Expiry date | Feb 6, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/19781
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A guiding device for orthosis, comprising an anti-friction screw and nut assembly, in which the nut comprises two interconnected nut portions, which are rotatable but not axially displaceable relatively to each other, each nut portion having an axial bore for receiving said screw and at least two anti-friction bearings, each arranged to contact a thread groove of the anti-friction screw, said screw and one of said nut portions having means for attaching the same to an orthosis or to a support.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.