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:
Nov. 08, 2011
Filed:
May. 21, 2009
Applicants:
Crispin D. Bolgar, Nottingham, GB;
Michael J. Sheath, Nottingham, GB;
Inventors:
Crispin D. Bolgar, Nottingham, GB;
Michael J. Sheath, Nottingham, GB;
Assignee:
Rolls-Royce PLC, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01D 19/00 (2006.01); F01D 17/06 (2006.01); F01D 21/02 (2006.01); F03D 7/00 (2006.01); F01B 25/06 (2006.01); F03B 15/06 (2006.01); F04D 15/00 (2006.01); F04D 27/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A control mechanism for moving at least two components of a gas turbine engine, the control mechanism comprises first and second crankshafts and a torsion bar connected to both crankshafts, each crankshaft is connected to a different component, the crankshafts engage one another via one-way abutment means and the torsion bar is pre-twisted so that up to a predetermined rotational extent the two crankshafts rotate together and beyond that extent only the first crankshaft rotates, thereby one of the two components moves more than the other component.