Cooling system for plastic molds
US4278230A · kind A · utility
9Cited by
6References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 19, 1976 |
| Grant date | Jul 14, 1981 |
| Priority date | — |
| Expiry date | Oct 19, 1996 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C35/007
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A system for cooling plastic molds with a flowing liquid while obviating leaking of the fluid and still enabling the mold to basically determine the quantity of liquid flowing, by providing a less than atmospheric pressure within the mold and increasing where needed, the cooling effect of the flowing liquid by in effect, providing a controlled adjustable air leak.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.