Valve nozzle of injection molding machine
US4285661A · kind A · utility
17Cited by
4References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 30, 1979 |
| Grant date | Aug 25, 1981 |
| Priority date | — |
| Expiry date | Nov 30, 1999 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C2045/2882
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A valve nozzle is used at an end of a hot runner or an injection molding machine for an injection molding. The valve nozzle comprises a cylinder as a body of the nozzle, and a piston. The cylinder has a gate and has a larger inner diameter at the rear end and a smaller inner diameter at the front end. The piston has a passage in the piston and has a large outer diameter at the rear end and a smaller outer diameter at the front end.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.