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특허 상세정보

Method of making a hollow airfoil

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B64C-011/24    B32B-017/04    B32B-031/02   
미국특허분류(USC) 156/156 ; 156/173 ; 156/189 ; 156/245
출원번호 US-0835389 (1977-09-21)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 29  인용 특허 : 2
초록

A method of making hollow aircraft rotor blades from laminated material. An expandable mandrel is first made from curable materials and then a composite build-up of epoxy material is made by layering a plurality of prepreg plies of curable material over the expandable mandrel. The mandrel and build-up of epoxy materials are then placed in a mold and pressure is applied to expand the mandrel which, in turn, expands the build-up of material against the mold. The mandrel and composite build-up of material are then cured and the mandrel becomes an integral p...

대표
청구항

A method of making a section of a hollow aircraft rotor blade comprising the steps of: forming a hollow expandable mandrel by connecting an upper skin panel, a lower skin panel, a leading edge channel and an aft channel, said panels and channels being of resin reinforced curable materials which are cemented together, then laying a plurality of prepreg plies of curable material onto said hollow expandable mandrel to form a composite build-up, then placing said hollow expandable mandrel with said plurality of prepreg plies thereon in a female mold, then pl...

이 특허를 인용한 특허 피인용횟수: 29

  1. Hamm Robert A. (Bellevue WA). Composite integral web stiffening method. USP1984064452657.
  2. Braun Rudolf (Winnipeg CAX) Jensen Richard (Winnipeg CAX). Composite leading edge/spar member for an aircraft control surface. USP1987044657615.
  3. Fujiwara, Naoaki; Yazaki, Tadashi. Composite material structure forming method. USP2017129833945.
  4. Carter, Thomas G.; Pristas, Robert J.. Composite pressure vessel assembly. USP2010107810670.
  5. Diller Joseph B. ; Miller ; Jr. Nicholas F.. Elastomeric transition for aircraft control surface. USP2000116145791.
  6. Diller Joseph B. ; Miller ; Jr. Nicholas F.. Elastomeric transition for aircraft control surface. USP1998085794893.
  7. Ellis James R. ; Diller Joseph B.. Expandable aircraft section. USP1998095803405.
  8. Callis, Richard A.; White, Joe; White, legal representative, Jane; Newkirk, Scott. Helicopter blade mandrel. USP2010077749421.
  9. Callis, Richard A.; Johnston, Wayne; Gray, Nate; Bailey, David P.. Helicopter blade mandrel with roller assembly. USP2011118066504.
  10. Callis, Richard A.; Johnston, Wayne; Gray, Nate; Bailey, David P.. Helicopter blade mandrel with roller assembly. USP2013088510946.
  11. Lindsay Howard A. ; Mears Jeffrey A. ; Monks Robert F. ; Motoyama Steven M. ; DeLap Christopher K.. High pressure hollow process for manufacturing composite structures. USP1998125853651.
  12. Cook Clarence E. (Lancaster CA) Smith Glynn E. (Quartz Hill CA) Monaghan Richard C. (Pearblossom CA). Inflatable device for installing strain gage bridges. USP1983104407686.
  13. Lamalle Jean (Blanquefort FRX) Tijne Jean-Louis (Martignas sur Jalle FRX). Manufacture of a hollow envelope by winding filamentary material. USP1987104698011.
  14. Schulz David W. (Belmont CA). Manufacturing method for hollow metal airfoil type structure. USP1987024642863.
  15. Goldsworthy, William B.; Korzeniowski, George J.; Carter, Thomas G.. Method for fabricating composite pressure vessels. USP2003056565793.
  16. Murphy James C. ; Boyce Gerald S.,GBX ; Coeckelbergs Erik,BEX. Method for fabricating composite pressure vessels. USP2001016171423.
  17. James C. Murphy ; Gerald S. Boyce GB; Erik Coeckelbergs BE. Method for fabricating composite pressure vessels and products fabricated by the method. USP2002116485668.
  18. Burger George (4 Carmel Dr. Novato CA 94947). Method for making composite reinforced tubes. USP1990054923541.
  19. Murphy James C. ; Boyce Gerald S.,GBX ; Coeckelbergs Erik,BEX. Method for making thermoplastic composite pressure vessels. USP2001026190598.
  20. Clark Paul ; Garhart Jonathan ; Milovich Dimitrije ; Nelson Ronald. Method for manufacture of composite aircraft control surfaces. USP2001116319346.
  21. Ingram, Jr., William H.; Dull, Kenneth M.; Biornstad, Robert. Method for minimizing fiber distortion during fabrication of one-piece composite barrel section. USP2014048691037.
  22. Bose Debasis (Randolph NJ) Datta Amitava (Morris Township ; Morris County NJ) DeCristofaro Nicholas J. (Chatham NJ). Method of brazing with nickel based alloy. USP1985044508257.
  23. Reichert James B. (564 Midvale ; Apt. 7 Los Angeles CA 90024). Method of fabricating composite members. USP1981094292101.
  24. Pallu De La Barriere Philippe,FRX. Method of making a part of large dimensions out of composite material. USP2001076264877.
  25. Carter,Thomas G.; Pristas,Robert J.. Method of making a water treatment composite pressure vessel. USP2008047354495.
  26. Bottacin, Giuseppe. Process for structurally joining modular hollow columns or rods generically elongated in shape and the product obtained. USP2010077754046.
  27. Wobben, Aloys. Rotor blade hub. USP2005096942461.
  28. Measom, Ronald J.; Stamper, James R.; Self, Robert; Sherrill, Paul; Oldroyd, Paul K.; Morrow, Neil Edward; Cole, Russell. Systems and methods of constructing composite assemblies. USP20180610005242.
  29. Measom, Ronald J.; Stamper, Jr., James R.; Self, Robert; Sherrill, Paul; Oldroyd, Paul; Morrow, Neil Edward; Cole, Russell. Systems and methods of constructing composite assemblies. USP2017059638048.