Motion conversion mechanism
US4811618A · kind A · utility
13Cited by
9References
12Claims
0Family size
Assignees
Inventor
Key dates
| Filing date | Jul 21, 1987 |
| Grant date | Mar 14, 1989 |
| Priority date | — |
| Expiry date | Jul 21, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/19953
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A motion conversion mechanism comprising a threaded shaft and a nut, is disclosed. The nut comprises a cylindrical body having the inner surface thereof formed with a groove corresponding to the thread of the threaded shaft. A string having a low friction property surface is fitted in the groove such that it partly projects from the inner peripheral surface of the cylindrical body. The projecting portion of the string constitutes a thread to be screwed with the thread of the threaded shaft.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.