System for controlling the closing speed of valve gated nozzles
US9776349B2 · kind B2 · utility
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0References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 28, 2014 |
| Grant date | Oct 3, 2017 |
| Priority date | — |
| Expiry date | Aug 16, 2034 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29K2023/12
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Systems and methods for controlling the closing speed of valve gated nozzles are disclosed. In one embodiment, a hot runner have a valve gated nozzle including a valve stem movable between an open position and a closed position is provided. The valve stem is moved at a first speed for a first portion of valve stem closure and a second speed for a second end portion of the valve stem closure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.