Getter body
US4360444A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 2, 1981 |
| Grant date | Nov 23, 1982 |
| Priority date | — |
| Expiry date | Mar 2, 2001 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H33/6683
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A getter body for use in encapsulated electrical components is of the type consisting of a powder mixture which has been compressed into tablet form. The powder mixture contains in addition to traditional getter material such as activated carbon, zeolite or the like, aluminum stearate and a binder containing a synthetic such as a polyamide. The getter body is produced in several sequential steps. The getter material is mixed with a polycarbonate or a water glass solution, which is then dried and then pulverized. To this first powder is added the aluminum stearate and the binder containing a synthetic. The resulting powder may then be dried and is then pressed into tablets. The tablets may then be heat-cured and are then surfaced polished. The resulting tablets have good abrasion resistance without a noticeable loss in the getter effectiveness.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.