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. 14, 2000
Filed:
Jul. 30, 1998
Robert H Zipps, East Hartford, CT (US);
Reginald H Spaulding, Hebron, CT (US);
Edward S Todd, East Hampton, CT (US);
Robert F Kasprow, Wethersfield, CT (US);
Herman C Klapproth, Enfield, CT (US);
Douglas A Welch, Portland, CT (US);
Phyllis L Kurz, Hebron, CT (US);
Joseph J Cafasso, Glastonbury, CT (US);
United Technologies Corporation, Hartford, CT (US);
Abstract
A fan in an axial flow gas turbine engine includes a plurality of fan blades. Each fan blade includes an airfoil portion and a root portion with a platform disposed radially therebetween. The platform of each blade extends circumferentially from the blade and is dimensioned to define, with an adjacent platform, an enlarged gap to insure that contact between adjacent platforms is avoided when a blade is released during a blade loss condition. A seal is provided to seal the enlarged gap between adjacent platforms during normal operation of the gas turbine engine.