US2013136616A1PendingUtilityA1

Propeller blade having a honeycomb spar core

33
Assignee: PRUNET LUDOVICPriority: Nov 30, 2011Filed: Nov 30, 2012Published: May 30, 2013
Est. expiryNov 30, 2031(~5.3 yrs left)· nominal 20-yr term from priority
Inventors:Ludovic Prunet
B64C 11/20Y02T50/60B64D 2027/005B64C 11/22Y10T29/49332F01D 5/141B64D 27/026
33
PatentIndex Score
0
Cited by
0
References
0
Claims

Abstract

A propeller blade includes a honeycomb core and a structural layer that surrounds at least a portion of the honeycomb core.

Claims

exact text as granted — not AI-modified
1 . A propeller blade comprising:
 a honeycomb core; and   a structural layer that surrounds at least a portion of the honeycomb core.   
     
     
         2 . The propeller blade of  claim 1 , further comprising:
 a layer of fiberglass at least partially disposed between the honeycomb core and the structural layer.   
     
     
         3 . The propeller blade of  claim 1 , further comprising:
 a root disposed within the structural layer at an end of the propeller blade.   
     
     
         4 . The propeller blade of  claim 3 , wherein the root surrounds a portion of the honeycomb core. 
     
     
         5 . The propeller blade of  claim 1 , wherein the honeycomb core is formed of fiberglass, carbon, a composite material or any combination thereof. 
     
     
         6 . The propeller blade of  claim 1 , wherein the structural layer is formed of a resin-impregnated fiber material. 
     
     
         7 . The propeller blade of  claim 1 , wherein the structural layer is formed of a resin-impregnated braided carbon fiber sheet. 
     
     
         8 . A method of forming a propeller blade comprising:
 forming a honeycomb core; and   disposing a structural layer over at least a portion of the honeycomb core.   
     
     
         9 . The method of  claim 8 , further comprising:
 coupling a root to the honeycomb core;   wherein disposing includes disposing the structural layer over at least a portion of the root.   
     
     
         10 . The method of  claim 8 , wherein the honeycomb core is formed of fiberglass, carbon, a composite material or any combination thereof. 
     
     
         11 . The method of  claim 8 , wherein the structural layer is formed of a resin-impregnated fiber material. 
     
     
         12 . The method of  claim 8 , wherein the structural layer is formed of a resin-impregnated braided carbon fiber sheet.

Join the waitlist — get patent alerts

Track US2013136616A1 — get alerts on status changes and closely related new filings.

We store only your email — no account needed. See our privacy policy.