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. 03, 1998
Filed:
Jun. 23, 1993
Applicant:
Inventors:
John P Nikkanen, Hartford, CT (US);
Thomas J Jannetta, Tulsa, OK (US);
Assignee:
The Nordam Group, Inc., Tulsa, OK (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02K / ;
U.S. Cl.
CPC ...
60262 ; 60271 ; 23926511 ; 23926517 ;
Abstract
A modified exhaust tailpipe especially for use with an aircraft turbofan engine utilizing a noise suppressor. The modified tailpipe is connected to the exhaust duct of the engine. The forward end of the tailpipe is essentially the same diameter as that of the exhaust duct of the engine. The contour of the tailpipe is such that it increases in diameter to form a bulge to increase the flow area for fan gases in the area of a mixer which is supported within the forward end of the tailpipe exhaust system. This improves the operating efficiency of the jet engine.