Fan blade retention system -> Monitor Keywords
Fresh Patents
Monitor Patents Patent Organizer File a Provisional Patent Browse Inventors Browse Industry Browse Agents Browse Locations
site info Site News  |  monitor Monitor Keywords  |  monitor archive Monitor Archive  |  organizer Organizer  |  account info Account Info  |  
02/26/09 - USPTO Class 416 |  1 views | #20090053064 | Prev - Next | About this Page  416 rss/xml feed  monitor keywords

Fan blade retention system

USPTO Application #: 20090053064
Title: Fan blade retention system
Abstract: A turbofan engine blade retainer for use in retaining a fan blade to a fan disk. The blade retainer includes a fore blade retainer for limiting forward movement of the fan blade and an aft blade retainer for limiting aft movement of the fan blade. The fore blade retainer engages a fore portion of the fan blade and the aft blade retainer engaging an aft portion of the fan blade. (end of abstract)



Agent: Krieg Devault LLP - Indianapolis, IN, US
Inventor: Robert A. Ress, JR.
USPTO Applicaton #: 20090053064 - Class: 416214 A (USPTO)

Fan blade retention system description/claims


The Patent Description & Claims data below is from USPTO Patent Application 20090053064, Fan blade retention system.

Brief Patent Description - Full Patent Description - Patent Application Claims
  monitor keywords CROSS-REFERENCE TO RELATED APPLICATIONS

The present application claims the benefit of U.S. Provisional Patent Application No. 60/842,122 filed Sep. 1, 2006 and which is incorporated herein by reference.

FIELD OF THE INVENTION

The present inventions relates generally to fan blades in turbofan engines and more particularly, but not exclusively, to a fan blade retainer system for retaining a fan blade in a turbofan engine. Although, the present inventions were developed for use in turbofan engines, certain applications may be outside this field.

BACKGROUND

Presently many systems for attaching fan blades in a turbofan engine suffer from a number of disadvantages, limitations, and drawbacks including, for example, those respecting complexity of geometry, manufacturing cost, assembly time, local stress concentration in the attachment region, and fatigue life of the blade attachment. Thus, there is a continuing need for the development of technology for retaining fan blades within a turbofan engine. The present inventions satisfy this need in a novel and unobvious way.

SUMMARY

One form of the present invention contemplates a unique fan blade retainer for retaining fan blades within a turbofan engine. Other forms of the present invention contemplate unique apparatuses, systems, devices, hardware, methods, and combinations of these for defining a retainer for fan blades, compressor blades, and/or turbine blades. Further embodiments, forms, objects, features and aspects of the present inventions shall become apparent from the following description and drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is an illustrative schematic view of a gas turbine engine.

FIG. 2 is a partial cross-sectional view of a fan blade retention system according to an embodiment of the present invention.

FIG. 3 is an illustrative view of one embodiment of a retainer comprising a portion of one form of the present invention.

FIG. 4 is an illustrative view of another embodiment of a retainer comprising a portion of another form of the present invention.

FIG. 5 is an enlarged view of a portion of FIG. 2 comprising a tab portion interfaced with a disk lug.

DESCRIPTION OF THE ILLUSTRATIVE EMBODIMENTS

Continue reading about Fan blade retention system...
Full patent description for Fan blade retention system

Brief Patent Description - Full Patent Description - Patent Application Claims

Click on the above for other options relating to this Fan blade retention system patent application.
###
monitor keywords

How KEYWORD MONITOR works... a FREE service from FreshPatents
1. Sign up (takes 30 seconds). 2. Fill in the keywords to be monitored.
3. Each week you receive an email with patent applications related to your keywords.  
Start now! - Receive info on patent apps like Fan blade retention system or other areas of interest.
###


Previous Patent Application:
Cooling fan
Next Patent Application:
Fan blade retaining structure
Industry Class:
Fluid reaction surfaces (i.e., impellers)

###

Design/code © 2009 FreshContext LLC/Freshpatents.com. Website Terms and Conditions - Also read: About this Page
Patent data source: patents published by the United States Patent and Trademark Office (USPTO)
Information published here is for research/educational purposes only (and in conjunction with our Keyword Monitor) and is not meant to be used in place of the full USPTO patent document/images or a comprehensive patent archive search. Complete official applications are on file at the USPTO and often contain additional data/images (Freshpatents is currently text-only). FreshPatents.com is not affiliated with or endorsed by the USPTO or firms/individuals or products/designs/ideas related to listed patents.
FreshPatents.com Support
Thank you for viewing the Fan blade retention system patent info.
IP-related news and info


Results in 0.26967 seconds


Other interesting Feshpatents.com categories:
Novartis , Pfizer , Philips , Polaroid , Procter & Gamble , orig 		filepatents (1K)

* Protect your Inventions
* US Patent Office filing
patentexpress PATENT INFO