The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 25, 2006
Filed:
Nov. 07, 2003
Applicants:
Jagnandan K Bhangu, Derby, GB;
John W Harrison, Derby, GB;
Inventors:
Jagnandan K Bhangu, Derby, GB;
John W Harrison, Derby, GB;
Assignee:
Rolls-Royce plc, London, GB;
Primary Examiner:
Int. Cl.
CPC ...
B22D 27/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
An investment mould process for forming a cast member is described. The process comprises forming a precursor casting () from a master mould (). The master mould () has an internal surface () defining a space () in which the precursor casting () can be formed. The surface () defines a location indentation () to provide a corresponding location projection () on the precursor casting (). A holding member () can be inserted into the location projection () to hold an internal member (A,B).