Method for forming an EMI shielding gasket
US5641438A · kind A · utility
Inventors
Key dates
| Filing date | Jan 24, 1995 |
| Grant date | Jun 24, 1997 |
| Priority date | — |
| Expiry date | Jan 24, 2015 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/26
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method for forming an EMI shielding gasket gasket. The gasket is a formed-in-place gasket which is deposited by an extruder. The gasket material is a fluent polymeric material having a conductive particles disposed therein. The fluent polymeric material is supplied to the extruder by a material supply system having several canisters and a mixing chamber. The fluent polymeric material is fed to a chamber in the extruder. Pressure is applied to the fluent polymeric material by a pressure supply system which includes a source of positive pressure and negative pressure, and a control module for selectively supplying positive pressure and negative pressure to the extrusion chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.