US Patent No: 4,671,470

Number of patents in Portfolio can not be more than 2000

Method for fastening aircraft frame elements to sandwich skin panels covering same using woven fiber connectors

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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This invention relates to improvements in the method by which elongate frame elements such as the spars in aircraft wings are fastened to the skin panels covering same where these skin panels are of the sandwich type having inner and outer facesheets with a core bonded therebetween, such method consisting of preparing the panel to receive its frame elements by cutting elongate grooves spanwise through the inner facesheet and the core therebeneath while leaving the outer facesheet intact; bridging the gap thus produced in the inner facesheet with one bundle of filaments adhesively bonded thereto, the latter being contained in a woven connector in the form of a strap or band running lengthwise of the groove, and this filament bundle forming an endless strand of yarn that is laid back and forth transversely across the gap in side-by-side parallel rows but which are parted at intervals for the side-by-side lays of at least one other similar yarn strand to pass therebetween in intersecting relation; adhesively-bonding the skin panel core exposed within the groove to one or both sides of the frame element located proximal thereto using two endless strands of yarn laid back and forth to define a pair of intersecting webs arranged in spaced substantially parallel relation to one another that form a part of the connector and pass through the spaces between the first-mentioned yarn strands.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
BEECH AIRCRAFT CORPORATIONWICHITA, KS4

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Jonas, Paul J Wichita, KS 1 73

Cited Art Landscape

Patent Info (Count) # Cites Year
 
The Boeing Company (2)
4,395,450 Composite structural skin spar joint and method of making 22 1981
4,565,595 Method of making composite aircraft wing 45 1983
 
EUROCOPTER DEUTSCHLAND GMBH (1)
4,201,815 Shear transfer element 13 1978

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
The Boeing Company (45)
4,910,065 Reinforced honeycomb core sandwich panels and method for making same 8 1987
5,660,669 Thermoplastic welding 10 1994
5,710,412 Fluid tooling for thermoplastic welding 3 1995
5,635,094 Conformal skate for induction welding 1 1995
5,573,613 Induction thermometry 12 1995
7,126,096 Resistance welding of thermoplastics in aerospace structure 5 1995
6,602,810 Method for alleviating residual tensile strain in thermoplastic welds 4 1995
5,808,281 Multilayer susceptors for achieving thermal uniformity in induction processing of organic matrix composites or metals 30 1995
5,793,024 Bonding using induction heating 16 1995
5,723,849 Reinforced susceptor for induction or resistance welding of thermoplastic composites 18 1995
5,717,191 Structural susceptor for thermoplastic welding 18 1995
5,710,414 Internal tooling for induction heating 14 1995
5,705,795 Gap filling for thermoplastic welds 7 1995
5,645,744 Retort for achieving thermal uniformity in induction processing of organic matrix composites or metals 40 1995
5,624,594 Fixed coil induction heater for thermoplastic welding 14 1995
5,829,716 Welded aerospace structure using a hybrid metal webbed composite beam 25 1995
5,756,973 Barbed susceptor for improviing pulloff strength in welded thermoplastic composite structures 8 1995
5,760,379 Monitoring the bond line temperature in thermoplastic welds 16 1995
5,786,576 Self-steering system for guiding a moving induction coil during thermoplastic welding 4 1995
5,705,796 Reinforced composites formed using induction thermoplastic welding 10 1996
5,847,375 Fastenerless bonder wingbox 10 1996
5,916,469 Susceptor integration into reinforced thermoplastic composites 36 1996
5,869,814 Post-weld annealing of thermoplastic welds 2 1996
5,902,935 Nondestructive evaluation of composite bonds, especially thermoplastic induction welds 28 1997
5,833,799 Articulated welding skate 2 1997
6,040,563 Bonded assemblies 12 1997
5,935,475 Susceptor integration into reinforced thermoplastic composites 38 1998
5,925,277 Annealed thermoplastic weld 2 1998
6,613,169 Thermoplastic rewelding process 5 1998
6,284,089 Thermoplastic seam welds 19 1998
6,565,942 Composite panel having a thermoplastic seam weld 9 2002
6,749,155 Composite assembly with integrated composite joints 6 2002
6,871,822 Apparatus and methods of attaching panels to support structures 2 2003
7,416,157 Apparatus and methods of attaching panels to support structures 1 2005
7,574,835 Composite-to-metal joint 1 2005
7,887,249 Internal finger joint 3 2006
7,810,757 Mounting device for an aircraft 6 2006
8,128,028 Internally stiffened composite panels and methods for their manufacture 2 2007
8,490,362 Methods and systems for composite structural truss 0 2007
7,954,763 Methods and systems for composite structural truss 1 2007
8,082,667 Apparatus and methods for securing a first structural member and a second structural member to one another 0 2007
8,234,901 Method to create bends in composite panels 0 2007
7,578,478 Attaching panels to support structures in an aircraft 0 2008
8,312,754 Method for forming bends in composite panels and composite panels made thereby 0 2008
8,677,717 Methods and systems for composite structural truss 0 2013
 
LOCKHEED MARTIN CORPORATION (7)
6,849,150 System and method of forming structural assemblies with 3-D woven joint pre-forms 16 2001
6,712,099 Three-dimensional weave architecture 16 2001
6,863,767 Paste-bond clevis joint 8 2001
6,821,368 Co-bonded joint with Z-pins 8 2001
6,874,543 Woven preform for structural joints 15 2002
7,521,108 Embedded connector attached to a base panel 1 2003
7,790,294 System, method, and apparatus for three-dimensional woven metal preform structural joint 1 2006
 
UNITED TECHNOLOGIES CORPORATION (3)
8,083,489 Hybrid structure fan blade 0 2009
8,642,158 Repair of composite sandwich structures 0 2011
8,585,368 Hybrid structure airfoil 0 2011
 
AIRBUS OPERATIONS SAS (2)
8,361,911 Three-dimensional surface weaving 0 2007
8,561,649 Three-dimensional surface weaving 0 2012
 
ALBANY ENGINEERED COMPOSITES, INC. (2)
7,413,999 Corner fitting using fiber transfer 9 2005
7,712,488 Fiber architecture for Pi-preforms 8 2008
 
SHIKISHIMA BOSEKI KABUSHIKI KAISHA (2)
5,126,190 Textile reinforced composite structure or spar 13 1991
5,343,897 Profiled cross-section three dimensional woven fabric 12 1993
 
AEROSPATIALE SOCIETE NATIONALE INDUSTRIELLE (1)
5,460,673 Method for producing a fiber reinforcement for a component of composite material with non-coplanar walls, and composite component comprising such a reinforcement 5 1994
 
Brochier S.A. (1)
5,021,281 Laminated material reinforced by a multi-dimensional textile structure and method for producing the same 16 1987
 
EMBRAER S.A. (1)
8,079,549 Monolithic integrated structural panels especially useful for aircraft structures 3 2008
 
GENERAL ELECTRIC COMPANY (1)
8,393,871 Wind turbine blade shear web connection assembly 0 2011
 
HEXCEL CORPORATION (1)
5,657,595 Fabric reinforced beam and column connections 37 1995
 
INDIAN SPACE RESEARCH ORGANIZATION, BANGALORE (1)
8,640,428 Strength enhancing insert assemblies 0 2004
 
MILLS, BALLY RIBBON (1)
6,742,547 Three-dimensional woven forms with integral bias fibers and bias weaving loom 10 2001
 
SHIKISHIMA CANVAS KABUSHIKI KAISHA (1)
5,236,020 Profiled cross-section three-dimensional woven fabric 7 1991
 
SIEMENS ENERGY, INC. (1)
7,247,003 Stacked lamellate assembly 18 2005
 
The United States of America as represented by the Secretary of the Navy (1)
5,698,316 Apparatus and methods of providing corrosion resistant conductive path across non conductive joints or gaps 14 1996
 
Other [Check patent profile for assignment information] (2)
5,277,958 Multiple-layer structures and joining method for honeycomb, foam and lightweight materials 8 1990
5,753,068 Thermoplastic welding articulated skate 2 1997