Hot runner system having active material
US8147237B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 19, 2009 |
| Grant date | Apr 3, 2012 |
| Priority date | — |
| Expiry date | Jul 9, 2029 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C2045/2769
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
According to an aspect, there is disclosed a hot runner system (100), comprising: a first surface (205) being elastically deformable; a second surface (210) forming, in cooperation with the first surface (205), a melt-leakage gap (215) being located between the first surface (205) and the second surface (210); and an active material (220) being: (i) coupled with the first surface (205), (ii) held normally stationary, (iii) configured to be operatively coupled with a signal source (225), and (iv) configured to elastically deform in response to receiving a signal from the signal source (225), upon elastic deformation of the active material (220), the first surface (205) becomes moved toward the second surface (210) such that a size (235) of the melt-leakage gap (215) becomes controlled.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.