Timothy D. Mills

Principal, Project Manager, Mechanical Design and Software Engineer, Systems Manager


  • Pratt Institute, New York, New York
  • Mechanical Engineering

Career Synopsis

Tim Mills started working as a software engineer for Geiger Associates in 1980. Previously he was a Senior Lab Technician at Creare Engineering. Tim became Systems Manager for Geiger Associates in 1982. He has been a Design Engineer and Systems Manager for Geiger Engineers since the firm was founded in 1988. Tim became a principal of the firm in 1995.

Project Experience

Principal in Charge of:
  • USTA New Armstrong Stadium, Retractable Roof Mechanization Design, New York, NY
  • Syracuse University Stadium New Roof, Moveable Video Display Mechanism, Syracuse, NY 
  • Penn State University, IM Facility Drying Rack Structure and Mechanism, State College, PA
  • State Farm Center, New LED Modular Scoreboard Chassis, University of Illinois at Urbana-Champaign, Champaign, IL
  • Finding Neverland, Flying performer system, Lunt-Fontanne Theater, New York, NY
  • U.S. Bank Stadium, Operable Wall Mechanism, 3rd Party Review, Minneapolis, MN
  • Modular Multipurpose Entertainment Winch, Kish Rigging, Moore Park, CA
  • LEGO X-Wing Fighter Reveal, Track system and truss structures, Times Square, New York, NY
  • Spider-Man: Turn Off the Dark, Structural systems for performer flying effects, Lyric Theater, New York, NY 
  • BC Place Stadium, Deployable Soccer Screen Canopy, Vancouver, British Columbia, Canada
  • Aqua Theater Performance Lifts, Le Reve, Wynn Las Vegas & Encore Resort, Las Vegas, NV
  • Mina Zayed MGM Grand Hotel, Deployable facade solar screen, Abu Dhabi, UAE
  • Radio City Music Hall, New video wall rigging, New York, NY
  • Phantom of the Opera, Structural Systems for touring production, North America
  • Dodge Minivan Flying Effects for Introduction Gala, Las Vegas, NV
  • NBC Reusable Olympic Studio Structures for the 2000 Olympics, Sydney, Australia
  • HERCULES Premiere, Outdoor screen, New York, New York
  • NBC Reusable Olympic Studio Structures, 2002 Winter Olympic Games, Salt Lake City, UT
  • Super Bowl JumboTron Tower, Sun Devil Stadium, Tempe, AZ
Project Manager and Design Engineer For:
  • U.S. Bank Stadium, Retractable Seating, 3rd Party Review, Minneapolis, MN
  • USTA Ashe Stadium, New Retractable Roof Mechanization, New York, NY
  • 150th Cinco de Mayo Celebration, Outdoor Stage and Effects, Puebla, Mexico
  • Opening Ceremonies of the 2011 Pan American Games, Guadalajara, Jalisco, Mexico
  • Carrier Modular Outfitting Facility, Retractable Roof, Newport News, VA
  • 1996 Centennial Olympic Games, Opening & Closing Ceremonies Consulting, Atlanta, GA.
  • POCAHONTAS Premiere, Outdoor screen, Central Park, New York, NY
  • Legends of Soccer Tour '93, Robotic Goalie Machine
  • Genesis We Can't Dance Tour 1992, Stage & Special Effects, North America 
  • World Youth Day '93, Papal Stage, Mile High Stadium, Denver, CO
  • Phantom of the Opera, Touring Production Effects, North America
  • Octos or Conference Bike, eight-occupant human-powered sculpture, New York, NY
  • Metamorphosis, Automated Sculpture, Osaka, Japan
  • Pink Floyd Momentary Lapse of Reason Tour, Flying Effects
Design Engineer or Analyst For:
  • USTA New Armstrong Stadium, Roof Mechanization, New York, NY
  • Peng Hu Community Center, Peng Hu , Taiwan, R.O.C.
  • USAir Arena, Entertainment Show Rigging, Landover, MD
  • Tropicana Field, Entertainment Rigging, St. Petersburg, FL
  • Phil Collins The Seriously Live! World Tour 1990, Stage Set

Professional Experience

  • Managed and performed hardware modifications, upgrades, maintenance, diagnosis and repairs on PRIME minicomputer and peripherals and all personal computer workstations
  • Specified and installed a multiplexed high speed voice/data office LAN system
  • Specified and installed a multi-user LAN based PC architectural CAD system
  • Designed, fabricated and operated a digital data acquisition hardware system for a turbo-machinery laboratory
  • Complete generic engineering operating environment for structural and mechanical analysis packages. System fully utilizes current state of the art windowing systems, and mathematical and graphics libraries.
  • Interactive Office Management System consisting of project budgeting/management/performance, manpower allocations/projections, timesheet accounts payable with general ledger posting
  • Interactive three-dimensional input software for use with a two-dimensional digitizing graphics tablet
  • Data acquisition system for laboratories that collects data from various instrumentation and preprocesses for input into engineering analysis packages
  • Operator software for a fluid-turbo machinery laboratory that graphically represents sampled data during testing of prototype machinery


  • "Assessing Existing Theater Structures and Rigging Infrastructure for Large Production Demands" SEI Structures Congress 2011, published by the ASCE, Las Vegas, 2011 (co-author)


  • U.S. Patent No.10,487,874: Non-Linear Bearing Release for Large Moveable Structures, co-inventors: Keith MacBain, David Campbell.
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