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. 27, 2018
Filed:
Jan. 21, 2016
Applicant:
Rolls-royce Plc, London, GB;
Inventor:
David Coles, Derby, GB;
Assignee:
ROLLS-ROYCE plc, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01D 21/00 (2006.01); F01D 25/24 (2006.01); G02B 23/24 (2006.01);
U.S. Cl.
CPC ...
F01D 21/003 (2013.01); G02B 23/2492 (2013.01); F05D 2260/83 (2013.01);
Abstract
There is disclosed an access port for a casing of a gas turbine engine and a plug for plugging the access port. The access port and plug each include first and second baulking formations which are configured to engage with one another. The first and second baulking formations are spaced from one another by a unique angular separation which allows only the correct plug to be inserted into the correct access port.