Insulated apparatus for injecting and removing compressed air from a cooled mold cavity
US6739858B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 29, 2002 |
| Grant date | May 25, 2004 |
| Priority date | — |
| Expiry date | Sep 28, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/7158
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An apparatus, mounted to a mold, for injecting air into a mold cavity and removing exhaust from the mold cavity, comprising: a blow cylinder body block mounted to the mold having a conduit to the mold cavity, wherein the blow cylinder body block comprises an insulator and the conduit has walls; a needle passing through the blow cylinder body block and the conduit, wherein the needle is connected to a piston, wherein the needle has a needle passage, and wherein compressed air is applied to the piston to extend the needle into the mold cavity and retract the needle from the mold cavity; and an insulator between the needle and the conduit walls.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.