Core for an investment casting process

US10099277B2 · kind B2 · utility

Assignee

• ROLLS-ROYCE plc

Inventors

• Simon Lloyd Jones · Bristol, GB
• Mark J. Simms · Boise, US

Key dates

• Filing date: Feb 23, 2016
• Grant date: Oct 16, 2018
• Expiry date: Sep 30, 2036

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B22C21/14
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

There is described a core for an investment casting process, comprising: a core passage which extends between a first point and a second point along a tortuous path having length L, wherein the first point and second point are separated by a direct line of sight distance, S, wherein L is greater than S; and, a core bridge which extends between the first and second points away from the core passage.