Plunger tip having a safety indicator surface
US4732206A · kind A · utility
2Cited by
4References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 19, 1980 |
| Grant date | Mar 22, 1988 |
| Priority date | — |
| Expiry date | Dec 19, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T82/10
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A metal plunger tip for use in aluminum die casting operations includes a cylindrical body having an axially extending cavity therein and a shank of smaller diameter extending axially from the body for connection to a control rod. The plunger tip has at least one outwardly-facing safety indicator surface located at which a point intermediate the inside and outside diameters of the body, for the purpose of indicating the extent to which the outer surface of the body can be machined without reducing the wall thickness to an unsafe dimension.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.