John D. Pratt, Ph.D., P.E.
44 Argos
Laguna Niguel, CA 92677
949-363-8205 Fax: 949-429-5972
Cell: 949-705-7860
Email:
John.Pratt@Argos-Engineering.com
Web Site:
www.argos-engineering.com




AREAS of EXPERTISE

Fasteners, Latching Mechanisms, Rapid Decompression, Aircraft & other Vehicle Structures, Structural Analysis, Numerical & Nonlinear Finite Element Modeling, Metals Behavior, Products Liability & Personal Injury.

Licenses

  • Professional Engineer – California No. M19452 (Mechanical Branch)
PROFESSIONAL ORGANIZATIONS

  • National Academy of Forensic Engineers (NAFE)
  • National Society of Professional Engineers (NSPE/CSPE)
  • American Society of Mechanical Engineers (ASME)
  • American Society of Civil Engineers (ASCE)
  • American Society of Metals (ASM)
EDUCATION

  • B.S.M.E. - California State University, Fullerton
  • M.S.M.E. - California State University, Fullerton
  • Ph.D. - Civil Engineering—Structural Mechanics - Airframe Joint Behavior
    University of California, Irvine
EMPLOYMENT

  • Argos Engineering, Laguna Niguel, CA. June 1 2005 – Present Principal. Provide litigation consulting & expert witness services to legal professionals. Provide new product development & engineering consulting to the Aerospace Fastener & Interiors industries.

  • Hartwell Corporation, Placentia, CA. August 1 2000 – June 1 2005 Vice President, Engineering. Managed the new product development & R&D functions, comprising 26 employees. Responsible for all engineering-related activities including product development, R&D, intellectual property, technical publications, & products liability. Co-inventor of a line of secure cockpit door latches. Led the post-9/11 development & commercialization for secure cockpit door latches, as well as engine nacelle latching systems for A318, A380, A340, B-787 & ARJ21, among others.

  • Textron Aerospace Fasteners (Cherry Textron), Santa Ana, CA. March 1988 – July 30 2000 Vice President, Research & Development- Oversaw the product development of aerospace & industrial fasteners. Managed the R&D department, intellectual property, products liability & CADD /document control activities. Active in license & joint venture negotiations. Founded Textron Sports Technology & acted as General Manager of that business until it was transferred to Textron’s Camcar division. Initiated collaborative projects with local universities. Primary interface with the FAA & NTSB.

  • Monogram Aerospace Fasteners Inc., Commerce, CA. Feb. 1979-March 1988 Engineering Manager- Managed the new product development & product engineering activities as well as cad drafting/document control & intellectual property. Company liaison for industry & government standards organizations (MIL-HDBK-5, NASC, AMFRG, FTDG, FEOPS, & ISO). Responsible for all product qualifications, applications testing & development of joint allowables. Reported to general manager. Invented & led the development of Composi-Lok (I & II) & Visu-Lok II blind bolts, among others.

  • Olympic Fastening Systems, Downey, CA. August 1969-Feb. 1979 Sr. Project Engineer, R&D. Held various engineering positions in Manufacturing Engineering & R&D since beginning as a draftsman in 1969. Responsibilities included sustaining engineering, progressive header tool design, installation tool development & development of fastener allowables for inclusion in MIL-HDBK-5.
HONORS & ACHIEVEMENTS

  • Registered Professional Engineer - Mechanical February 1979 - CA
  • Tau Beta Pi
  • Named inventor on thirty-one issued U.S. patents, as well as over 100 foreign counterparts, for fasteners, mechanisms, & sports equipment. Other patents are pending at the USPTO.
  • 4,376,604
  • 4,451,189
  • 4,457,652
  • 4,537,542
  • 4,548,533
  • 4,659,271
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  • 4,767,248
  • 4,767,248
  • 4,967,463
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  • 5,052,870
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  • 5,066,179
  • 5,131,107
  • 5,152,648
  • 5,333,980
  • 5,354,160
  • 5,378,098
  • 5,378,098
  • 5,378,098
  • 5,620,287
  • 5,692,865
  • 5,884,923
  • 5,938,384
  • 5,941,539
  • 5,957,642
  • 6,171,038
  • 6,261,062
  • 6,866,226
  • 6,866,227
  • 5,884,923
OTHER

  • Chairman Metallic Materials Properties Development & Standardization (MMPDS—formerly MIL-HDBK-5) Finite Element Analysis Sub Task Group (FEASTG), Fall 2005 – Present.
  • International Chairman of ISO/TC20/SC4 WG8 (Aerospace/Fasteners/Rivets), Fall 1997 through July 2000.
  • Immediate past Chairman of the Industrial Fasteners Institute Division II (Aerospace) technical committee, since Spring 1997.
  • Chairman of the Mil-Handbook-5 Fastener-Industry Working Group (FIWG), Spring 1998 through July 2000.
  • Member of the FAA ARACS working Group that drafted TSO-C148 (Technical Standard Order) for aerospace fasteners (1996-1997).
  • U.S. Army 1967 - 1969 (Honorable Discharge).
PUBLICATIONS

  • "Fastening of Advanced Composites", NASA conference, 1983, Seattle, WA.
  • “Analytical Modeling of Bolted Lap Joint Load-Elongation Behavior”, Journal of Aerospace Engineering, Jan. 2002 (ASCE)
  • “Comparative Load-Elongation Behavior of Single-Bolted & Dual-Bolted Lap Joints”, Journal of Aerospace Engineering, April 2002 (ASCE)
  • “The Influence of Conical Head Geometry on the Slip Resistance of Bolted Joints”, Journal of Aerospace Engineering, October 2002 (ASCE)
LEGAL EXPERIENCE

  • UNITED STATES DISTRICT COURT SOUTHERN DISTRICT OF NEW YORK IN RE HELICOPTER CRASH AT THE 60th STREET HELIPORT, NEW YORK, NEW YORK 98 CIV 3442 ON APRIL 15th 1997

    In 1997 a Colgate-Palmolive corporate helicopter crashed immediately after takeoff into New York's East River, killing one occupant & severely injuring two others. The NTSB's probable cause was tail boom fatigue failure due to substitution of solid rivets with Cherry Max blind rivets during a recent repair procedure. Engaged as a fastener expert for the defense during the period 1998 through 2001.

  • SUPERIOR COURT OF LOS ANGELES COUNTY SOUTHEAST DISTRICT—NORWALK Cline v. Winnebago et al., Jan. 2003-present

    Retractable bed in a Class “A” motor home alledgedly drops onto the head of plaintiff while vehicle is being operated. Engaged as a mechanisms expert for the defense beginning 2006.

  • Moyer v. Superior Air Parts (2005): Beechcraft Bonanza airplane crash after engine failure. Engine failure alledgedly caused by cyinder head bolt fatigue failures resulting from low clamp load. Engaged as the fastener expert for the defense.

  • Calgary Canada 1988 Winter Olympics Skating Oval---Roof leakage allegedly caused by defective commercial blind fasteners. Settled during arbitration. I functioned as liaison & fastener expert with outside counsel. Assisted with arbitration.

  • Third-party lawsuit against Hartwell Corporation alleging that defective latching mechanism failed to maintain cargo door in secured position. During flight the cargo door is alleged to have opened with exiting cargo impacting the tail rotor, resulting in a crash & injuries. I functioned as liaison with outside counsel & as an in-house latching expert.

  • Federal Trade Commission (FTC) action against Textron (Docket # 9226) regarding acquisition of Avdel PLC. My involvement included a deposition plus five days of testimony in front of an FTC administrative law judge in relation to aerospace fasteners (engineering, joint strength, fastener markets, etc).
INTELLECTUAL PROPERTY CASES

  • Olympic Fastening Systems v. Monogram Aerospace Fasteners (1979): Patent infringement case (Defense)
  • Huck International v. Cherry Div. of Textron Inc. (1995): Patent infringement case (Defense)
  • Cherry Div. of Textron Inc. v. Allfast Inc. (1998): Patent infringement case (Plaintiff)
  • Hartwell Corp. v. Avibank Div. of SPS Inc. (2003): Patent infringement case (Plaintiff)
  • Hartwell Corp. v. Harper Engineering (2005): Patent infringement case (Plaintiff)
  • Hartwell Corp. v. Adams-Rite (2005): Patent Infringement Case (Plaintiff)
SPECIFIC FASTENER & MECHANISM EXPERTISE

  • Conventional threaded screws, bolts & nuts (AN, MS, SAE, etc.)
  • Blind fasteners (rivets & bolts)
  • Expandable bushing fasteners
  • Aircraft latching mechanisms (engine nacelles, access panels, door handles, stow bin latches, etc.)
  • Aircraft decompression mechanisms
  • Secure cockpit door latches & mechanisms
  • In-line skate & running shoe hardware (axles, cleats, etc.)
  • All products manufactured by the following companies;
    • Monogram Aerospace Fasteners
    • Textron Aerospace Fasteners & Textron Fastening Systems
    • Hartwell Corporation / Adams-Rite / Avibank Div. of SPS / RAM Div. of Alcoa Fastening Systems
    • Alcoa Fastening Systems (Huck, Tridair, Rosan, Fairchild, Voi-Shan, Deutch)
    • Allfast Fastening Systems
    • Click Bond Inc.
    • Emhart-Heli Coil
    • Hi-Shear Corporation / West Coast Aerospace / Air Industries
    • Nylok
    • Shur-Lok
    • SPS
    • Sonic Industries
    • The Young Engineers
    • Dzus
    • POP
FORENSIC ENGINEERING SEMINARS

  • July 10-11, 2005: NAFE, Chicago IL
  • Oct. 15-16, 2005: SFES, Concord, CA
  • Jan. 21-23, 2006: NAFE, Washington DC
  • Jan. 28-29, 2006: SFES, Santa Monica CA
  • Feb. 20-24, 2006: AAFS, Seattle WA
  • Mar. 25-26, 2006 SFES, Yosemite CA
SPECIALITY EQUIPMENT, SOFTWARE & CONNECTIONS
  • Laptop w/ 17” screen with all standard Microsoft Office software
  • Lawrence Livermore Laboratories’ suite of finite element analysis codes, with compiler
  • SolidWorks Premium, including CosmosWorks & Cosmos FEA
  • Visual Basic for writing Windows-based programs
  • Canon 30D 8.2MP with 35-85mm EOS & 100mm Macro lenses & Micro-Lite attachment
  • Working relationships with several local laboratories & universities for testing & analysis


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