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:
Feb. 14, 2023
Filed:
Apr. 01, 2022
Applicant:
Pratt & Whitney Canada Corp., Longueuil, CA;
Inventors:
Guy Lefebvre, St-Bruno-de-Montarville, CA;
Remy Synnott, St-Jean-sur-Richelieu, CA;
Philippe Savard, Montreal, CA;
Assignee:
PRATT & WHITNEY CANADA CORP., Longueuil, CA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01D 25/28 (2006.01); F01D 25/18 (2006.01); F01D 25/16 (2006.01); F01D 9/06 (2006.01); F01D 9/04 (2006.01); F01D 25/24 (2006.01);
U.S. Cl.
CPC ...
F01D 25/24 (2013.01); F01D 9/06 (2013.01); F01D 25/162 (2013.01); F01D 25/18 (2013.01); F05D 2220/323 (2013.01); F05D 2230/60 (2013.01); F05D 2260/31 (2013.01);
Abstract
A service tube assembly comprises a service tube having a threaded end portion and a ratchet hub spaced from the threaded end portion. The threaded end portion of the service tube is threadably engaged with a mating part. The assembly further comprises a locking member having a cantilever extending from a fixed end held relative to the mating part to a free end. A ratchet pawl is provided at the free end for engagement with the ratchet hub on the service tube.