Methods of aligning paramagnetic articles
US4383357A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 16, 1981 |
| Grant date | May 17, 1983 |
| Priority date | — |
| Expiry date | Apr 16, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/53261
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Paramagnetic articles such as a stem (14) and an armature (17) are placed into mutual coextensive alignment with a gap (19) of a predetermined width between adjacent portions of such articles. To repetitively establish the predetermined gap between successive groups of such articles, a first of such articles is guided tangentially into a magnetic field. A resulting force on such article (14) draws the article against a first stop surface. The article becomes magnetically polarized, such that when the second article, such as the armature (17) is guided into coextensive alignment with the first article, the second article becomes attracted to the first article to be drawn against a stop surface opposite to and spaced from the first stop surface by a dimension equal to the predetermined gap width.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.