Ball screw
US5012687A · kind A · utility
10Cited by
3References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 7, 1989 |
| Grant date | May 7, 1991 |
| Priority date | — |
| Expiry date | Nov 7, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/19805
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A ball screw composed of a screw shaft constantly supported on struts at plural parts and a nut movable over an entire length of the shaft by rotations thereof. The nut moves with a high accuracy, and the durability is improved with a simple structure by preventing screw shaft deflections due to elongation thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.