Patent ID: 11858813
Assignee: GENERAL GRAPHENE CORP.
Field: Materials, metallurgy (Chemistry)
Classification: CPC C  B | IPC B  C

Claim 3:
4. The method for forming graphene of claim 1, wherein said scavenging includes:
utilizing multiple gas outlets disposed within said one or more infeed tunnels including multiple laterally-oriented gas outlets and multiple angularly-oriented gas outlets to deliver said substrate scavenging gas composition during said scavenging step,
wherein multiple said laterally-oriented gas outlets are oriented in a direction that is parallel to said substrate holder and multiple said angularly-oriented gas outlets are oriented in a direction that is at an angle to an axis perpendicular to said substrate holder;
protecting said substrate sheet from contaminants present around said substrate sheet using a laterally flowing stream of said substrate gas scavenging composition generated from said laterally-oriented gas outlets; and
contacting said substrate sheet with an angularly flowing stream of said substrate gas scavenging composition generated from said angularly-oriented gas outlets.