Apparatus for precision casting
US4421152A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 2, 1981 |
| Grant date | Dec 20, 1983 |
| Priority date | — |
| Expiry date | Mar 2, 2001 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22D27/15
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A precision casting device especially suitable for dental use, which includes melting and casting chambers supported by a frame such that they are arranged coaxially up and down in the frame under a normal operating state and can be drawn horizontally out of the frame during service time in order to facilitate access to the interiors of them, and which is provided with evacuating apparatus and an inert gas supply and can carry out the casting process in which a casting material is molten in an inert atmosphere, the molten material is then supplied to a mold in a vacuum state and, therafter, casting is effected under a pressure of inert atmosphere.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.