Argos Engineering
Mechanical Systems Analysis and Litigation Consulting
 

Curriculum Vitae

John D. Pratt, Ph.D., P.E.

44 Argos • Laguna Niguel, CA. 92677
Office (949) 363-8205 • Cell (949) 705-7860
E-mail: johndpratt@cox.net


Professional Summary

Through Argos Engineering, John D. Pratt provides new product development consulting for the Aerospace Fastener and Aircraft Interiors industries, as well as litigation consulting in the areas of mechanisms, latches and fasteners.

Before retiring as an aerospace industry executive in 2005, Dr. Pratt co-invented and led the development of the post-9/11 secure (terrorist-proof) cockpit door decompression latches now installed on half the world's fleet of aircraft. Previously Dr. Pratt invented and commercialized the first viable blind fastening system for laminated composites. After 30 years, that system (Monogram Aerospace Fasteners' Composi-Lok©) remains the one of the most-used structural blind fasteners for composite airframe assembly. Recent litigation consulting projects have included aircraft engine cylinder head bolt failure analysis, aircraft hanger wind-induced anchorage loss, and motor home retractable bunk mechanism analysis.

Dr. Pratt is presently involved in the development of permanent fasteners and temporary clamps for the robotic assembly of aircraft--specifically the wings and fuselage for the new AIRBUS A350 aircraft, but also for legacy aircraft as automated assembly takes hold. These one-sided fasteners facilite installation by robots to reduce manpower requirements.

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Expertise

  • Fasteners
  • Latching Mechanisms
  • Accident Reconstruction
  • Aircraft Rapid Decompression
  • Engineering, Structural
  • Failure Analysis
  • Kinematics Analysis
  • Mechanisms
  • Products Liability
  • Wind Load Analysis

Education

2001 University of California, Irvine, CA Ph.D. – Civil Engineering — Structural Mechanics (Airframe Joint Behavior)
1998 California State University, Fullerton, CA M.S.M.E.
1996 California State University, Fullerton, CA B.S.M.E.

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Litigation Support Experience Through 2/24/2015

 

TYPE of MATTER

PRODUCT or ISSUE

COMMENT

Products Liability Defective Pressure Cooker Personal Injury
Products Liability Defective Wheelchair Personal Injury
Products Liability Liquidified Propane Transfer Hose Failure Personal Injury
Products Liability Steering Column Failure Personal Injury
Products Liability Tonneau Cover Loss in High Wind Severe Personal Injury
Products Liability Switchblade Knife Design Defect Personal Injury
Products Liability Expandable Asile Barricade Personal Injury
Products Liability Passenger Bus Rollover--Defectibe U-Joint Multiple Fatalties
Products Liability Defective Punch Press Personal Injury
Products Liability Defective Articulated Ladder Personal Injury

Products Liability

BBQ Oven Design Defects

Personal Injury

Products Liability

Post Driver Design Defects

Personal Injury

Products Liability

Fastener Design or Manufacturing Defects

Helicopter (Military Seahawk) Crash w/ Fatalities

Products Liability

Overhead Door Repair and Maintenance

Personal Injury upon Failure of Brackets

Products Liability

Orthopedic Walker Design Defects

Personal Injury upon Collapse (Fastener Failure)

Products Liability

Catering Truck Deep Fryer Cover Latches

Personal Injury in Vehicle Crash

Products Liability

Knife and Sheath Design Defects

Personal Injury

Products Liability

Ladder Hatch Design Defects

Personal Injury

Products Liability

Folding Threadmill Design Defects

Personal Injury upon Collapse of Threadmill

Products Liability

Vehicle Glass Rack Design Defects

Fatality when Glass Dislodged Unexpectedly from Rack

Products Liability

Motor Home Bunk Mechanism Design Defects

Personal Injury when Bunk Fell onto Driver

Products Liability

Failure of Latches to Secure Cargo Door

Helicopter Crash when Cargo Door Opened

Products Liability

Separation of Tail Boom from Helicopter due to use of Blind Rivets for Repair

Helicopter Crash with Fatalities

Products Liability

Defective Blind Rivets

Leakage of Roof Panels on Olympic Skating Oval

Premises Liability Wind Toppled Supermarket Signage Personal Injury

Premises Liability

Negligence in Repair of Chaise Lounges

Personal Injury--Amputation of Finger

Premises Liability

Negligence in Maintenance of Airplane Hanger Door

Personal Injury by Windblown Hanger Door

Premises Liability

Negligence in securing Patio Furniture Against High Winds

Personal Injury by Windblown Chaise Lounge

Premises Liability

Negligence

Personal Injury by Windblown Parking Lot Barrier Arm

Premises Liability

Negligence

Personal Injury during Slip & Fall at Amusement Park

Premises Liability

Negligence in Securing Airplane Hanger to Ground

Fatality when Hanger Lost Anchorage to Ground in Moderate Winds

Breach of Contract

Fastener Conformance to Specifications

Parts Installed on Aircraft were Removed and Replaced at Great Expense

Breach of Contract

Bottle-Filling Equipment

Arbitration

Contract Fraud

Inaccurate Projected Costs on Firm Fix-Price Contract

B-1 Bomber Conventional Munitions Upgrade Program—Towed Decoy System

Patent Infringement High Pressure Hydraulic Hoses  
Patent Infringement Refrigerator Water Filter  
Patent Infringement Gate Locking Mechanism  
Patent Infringement Canted Coil Spring Connector  
Patent Infringement Pool Rakes  
Patent Infringement Pressure Responsive Electrical Switches  
Patent Infringement Snap Connectors for Fuel Dispensors  
Patent Infringement Hook and Loop Fasteners  
Patent Infringement Window Coverings  
Patent Infringement Folding Lawn Chairs  
Patent Infringement Lotto Ticket Dispensing Machines  
Patent Infringement Gun Safe Locking Mechanism  
Patent Infringement Television Console Kits  
Patent Infringement Combat Helmets  
Patent Infringement Guitar Stands  
Patent Infringement Hookah Pipes  
Patent Infringement Box Spring Stapling Machines  
Patent Infringement Dental Implants  
Patent Infringement Bulk material Loading Machines  

Patent Infringement

Shear Wall Reinforcement for Building Structures

 

Patent Infringement

Mortise Door Lock Mechanism

 

Patent Infringement

Captive Panel Fasteners

 

Patent Infringement

Keyboard Support Mechanisms

USITC Case

Patent Infringement

Keyboard Support Mechanisms

US District Court Case

Patent Infringement

Electric Strike Mechanisms for Door Locks

 

Patent Infringement

Time-Delay Magnetic Door Locks

 

Patent Infringement

Hurricane Abatement Systems

Fabric Covers for Frangible Portions of Buildings

Patent Infringement

Outdoor Lighting Fixtures

 

Patent Infringement

Mint & Toothpick Dispensers

 

Patent Infringement

Storm Drain Covers

 

Patent Infringement

Aircraft Pressure-Sensing Latches

 

Patent Infringement

Low Profile Aircraft Engine Nacelle Latches

 

Patent Infringement

Blind Bolts

 

Patent Infringement

Blind Rivets

 

Anti-Trust

Acquisition of Avdel by Textron

 

 

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Professional Experience

From: June 2005
To: Present
Organization: Argos Engineering, Laguna Niguel, CA
Title: Principal
Summary:

Argos Engineering provides litigation consulting, deposition and trial testimony, expert reports and failure analysis. Argos engineering has relationships with local laboratories for in-depth mechanical testing and metallurgical analysis. Argos Engineering offers litigation consulting and expert witness services in the following areas:

  • Fasteners and mechanically-fastened joint failures.
  • Latching mechanisms and latched joint failures, particularly aircraft structural latches.
  • Wind-induced building damage.
  • Aircraft rapid decompression.
  • Mechanism kinematics and failure analysis.
  • Metal forming (hot and cold forging) and processing (heat treatment, finishing).

From: August 2000
To: June 2005
Organization: Hartwell Corporation, Placentia, CA
Title: Vice President, Engineering
Summary Oversaw all new product development and engineering, including development of engine nacelle latches for the Airbus A380, A318, A400M, B787 and RJ700/900 Series aircraft. Also co-invented and led the development of the post-9/11 secure cockpit door decompression mechanisms presently in use on half of the world's fleet of commercial transport aircraft.

From: March 1988
To: August 2000
Organization: Textron Aerospace Fasteners, Santa Ana, CA
Title: Vice President, Research and Development
(Started as Director R&D)
Summary Led the development of various solid shank and blind fastener systems. Founded Textron Sports Technology operation within TAF in 1995 and led that group until its relocation to a commercial Textron division in 1999.

From: February 1979
To: March 1988
Organization: Monogram Aerospace Fasteners, Los Angeles, CA
Title: Engineering Manager
Summary: Led the product development and standardization efforts. Invented Composi-Lok (I & II), Visu-Lok II and other product lines, accounting for sales in excess of $250 million since 1983. Represented company at MIL-HDBK-5, NASC and other standardization activities.

From: August 1969
To: February 1979
Organization: Olympic Fastening Systems, Downey, CA
Title: Sr. Project Engineer, R&D (Started as Drafter Trainee)
Summary: Product development and manufacturing engineering activities, including fastener installation tooling and progressive header tooling. Designed hydraulic-pneumatic installation tools for Olympic's and competitor's product lines.

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Professional Affiliations, Achievements
and Awards

  • Professional Engineering License (Mechanical Engineering), CA, 1979
  • 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)
  • Society of Forensic Engineers and Scientists (SFES)
  • American Academy of Forensic Sciences (AAFS)
  • Past Chairman of the finite element analysis working group (FEAWG) of FAA/DoD MMPDS — the handbook used by aircraft designers for allowable materials and joint properties.

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Patents and Publications

Patents and Patent Publications

Patent Date Description
9,464,654 10/11/2016 Blind Fastener ("LiteFOOT")
9,284,971 3/15/2016 Blind Fastener ("Pretrip")
9,212,678 12/15/2015 Blind Bolt for Composites
8,961,086 1/24/2015 Flush Break Blind Fastener
8,888,425 11/18/2014 Blind Fastener
8,608,417 12/17/2013 Dual-Action Disposible Clamp
8,517,649 8/27/2013 Dual-Action Disposible Clamp
8,511,952 8/20/2013 Dual-Action Disposible Clamp
8,398,345 3/19/2013 Low Profile Clamp
8,348,566 1/8/2013 Blind Fastener
8,322,015 12/04/2012 Flush-Mount, Blind Fastener
7,857,563 12/28/2010 Mechanically Locked Blind Bolt Fastener
7,578,475 8/25/2009 Pressure Responsive Blowout Latch
7,255,376 8/14/2007 Pressure Sensing Deadbolt
7,252,311 8/7/2007 Motor Driven Latch
7,131,672 11/7/2006 Latch Mechanism
6,866,227 03/15/2005 Pressure responsive blowout latch with reservoir
6,866,226 03/15/2005 Pressure responsive blowout latch
6,261,042 07/17/2001 Quick-release fastener system
6,171,038 01/09/2001 Tapered shank rivet
5,957,642 09/28/1999 Cleat system
5,941,539 08/24/1999 Fastener system with expandable nut body
5,938,384 08/17/1999 Fastener system
5,884,923 03/23/1999 Fastener system with expandable nut body
5,692,865 12/02/1997 Quick release fastener system
5,620,287 04/15/1997 Fastener system with controlled clamping load
5,378,098 01/03/1995 Hole filling blind rivet
5,354,160 10/11/1994 Composite fastener
5,333,980 08/02/1994 Buckling semi-solid rivet
5,152,648 08/06/2002 Blind fastener for composite materials
5,131,107 07/21/1992 Method of making a blind fastener
5,066,179 11/19/1991 Blind fastener
5,056,973 10/15/1991 Bulb fastener
5,052,870 10/01/1991 Bulb fastener
5,046,348 09/10/1991 Blind fastener for composite materials
4,967,463 11/06/1990 Method of fastening panels using drive nut blind fasteners
4,767,248 08/30/1988 Fastener for securing panels of composite materials
4,752,169 06/21/1988 Flush break blind bolt
4,747,204 05/31/1988 Method of installing drive nut blind fasteners with cap nuts
4,681,494 07/21/1987 Drive nut blend fastener with cap nut
4,659,272 04/21/1987 Blind fastener with torque lock
4,659,271 04/21/1987 Flush break blind fastener
4,548,533 10/22/1985 Wedge-type fastener
4,537,542 08/27/1985 Wedge-type low profile fastener
4,457,652 07/03/1984 Composite buckling blind fastener
4,451,189 05/19/1984 Bulb rivet
4,376,604 03/15/1983 Blind fastener for composite materials

Publications

  1. "Fastening of Advanced Composites," NASA conference, 1983, Seattle, WA
  2. "Testing and Analysis of Mechanically-Fastened Lap Joints," Ph.D. Dissertation, John D. Pratt (2001)
  3. "Analytical Modeling of Bolted Lap Joint Load-Elongation Behavior," Journal of Aerospace Engineering, January 2002 (ASCE)
  4. "Comparative Load-Elongation Behavior of Single-Bolted and Dual-Bolted Lap Joints," Journal of Aerospace Engineering, April 2002 (ASCE)
  5. "The Influence of Conical Head Geometry on the Slip Resistance of Bolted Joints," Journal of Aerospace Engineering, October 2002 (ASCE)
  6. "Rapid Decompression of Pressurized Aircraft," Journal of Failure Analysis and Prevention, December 2006 (ASM)

 


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