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:
Mar. 09, 2004
Filed:
Nov. 15, 2001
Derek John Foster, Bristol, GB;
Rolls-Royce Plc, London, GB;
Abstract
In one aspect the invention provides a friction welded component, and a method of manufacture for such a component, comprising a pair of upstanding tubular members ( ) which are friction welded at their respective end cross-sections, in coaxial concentric relationship, to a surface of a thin walled member ( ). A reinforcement means ( ) is provided in the region between the tubular members such that loads acting on the tubular members are more evenly distributed to the thin walled member. The wall thickness of the thin walled member is substantially the same as or greater than the wall thickness of the tubular members The invention finds particular application in the fabrication of bosses to gas turbine aero-engine casings.