Punch pins, associated sockets, and methods of forming sockets using punch pins

US9562557B2 · kind B2 · utility

Assignee

• Acument Intellectual Properties, LLC · US

Inventor

• Gerold Ross · Bonefeld, DE

Key dates

• Filing date: Oct 6, 2014
• Grant date: Feb 7, 2017
• Expiry date: Oct 6, 2034

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B21K1/463
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

Abstract

Punch pins which have further extending lobes, and which are designed to punch sockets that have deeper flutes while not having lobes which extend further toward a center axis of the fastener. Using such a punch pin to form a socket in a fastener provides that the resulting socket has flutes which are deeper than they otherwise would be, without having to provide corresponding lobes which extend further toward the center axis of the socket. This extra deepness in the flutes helps to provide extra room for a coating to deposit.