David Lee Swindler

Education

 	Case Institute of Technology - BSEE 1958 
	Professional Engineer, State of Tennessee 018050
	Other Courses:	Design for Appearance 
			Written Communications 
			IBM Data Processing 
			COBOL 
			Professional Engineers Refresher 
			Commercial Pilot (Aircraft)   
			Instrument Pilot (Aircraft)

EMPLOYMENT:

 	DLS Engineering, Murfreesboro, TN 2003 to Present, Consulting Engineer

	Square D Company, Smyrna  TN, Dec. 1997 to 2003, Fellow Engineer

	Square D Company, Smyrna, TN; Sept. 1991 to Dec, 1997; Senior Staff Engineer

	Square D Company, Smyrna, TN; 1984 - 1991; Senior Engineer Specialist, Switchgear Products

	Square D Company, Middletown, OH; 1972 - 1983; Chief Engineer, Switchgear Products

	Square D Company, Cleveland, OH; 1962 - 1972; Development Engineering Supervisor, Controlgear Products

	USAF, Randolph AFB, TX; 1958-1962; Chief Communications and Electronics, SAC Refueling Wing.

	Square D Company, Cleveland, OH; 1958 - 1958; Service Engineer

	Reactive Metals, Niles, OH; 1955 - 1957; Student Electrical Engineer 

PROFESSIONAL EXPERIENCE:

A. DLS Engineering 2003 – Present

	
	Provided several Seminars and Training sessions to various groups of Engineers numbering up to 50 people on 
	the subject of protecting large complex low-voltage power systems against the even of Ground Faults while 
	providing the system security against the possibility of false tripping.  Investigating instances power
	transformer failures for causes due to re-ignition resonance and making recommendations for power system 
	revisions to avoid future failures.  

B. Square D Engineering Services July 1999 to 2003 (Retired)

	Reassigned to the Engineering Service Dept. of Square D Reporting to the Director of Engineering for Field 
	Service activity.  Activities have followed similar lines as the experience from May of 1984 forward.  Major 
	difference included the sale of Engineering Service to Customers.  This Service has primarily included the 
	analysis of Data System for Ground Fault Protection and the Design of GF Protective systems.  Activities have 
	been varied involving both high and low voltage power systems involving transformers and switchgear.  
	Several Seminars have been offered to employees and customers on the subject of Ground Fault Protection and 
	system design.  IEEE papers and Patents have been offered and awarded in this field.  A Patent concerning 
	transformer design to resist transient failures has been granted	

c. Square D Co., May 1984 – July 1999 :

	Responsibilities:	a. Consultant Engineering
			 	b. Industrial Standards
				c. International Standards
				d. Research projects
				e. Products Liability
				f. Special Assignments


	As a consultant, the applicant worked frequently with customers discussing technical aspects of power 
circuit breaker technology.  On occasion, the customer needed to be convinced of the company’s technical 
capability in the area of high voltage Switchgear.  There have been field problems involving occurrences associated 
with parasitic oscillations of ungrounded systems, ground fault protection involving products from two 
manufacturers, ground fault systems improperly installed and differential protective relaying.  In many instances 
the applicant was the principle problem solver working with principal engineers and managers with the following 
customers:  Dow Chemical Commonwealth Edison, Boston Edison, New York Port authority, Sergeant and Lunde, 
Louisiana Power and Light, Tampa Electric Gainsville Regional Utilities, Pacific Gas and Electric, NASA, 
Alabama Power, Harza Engineering, General Motors, Pennsylvania Electric CO, Northern Indiana Public Service, 
Hansen, Lind & Meyer, Fluor Daniel, Chevron, and Ellerbe Becket.  Several oral presentations to both large and 
small professional groups have been made presenting technical papers and related technical materials.  These have 
included the IEEE Pulp and Paper Conference,  IEEE Petroleum and Chemical Conference, IEEE local chapter, 
Tennessee Technological University, and other smaller groups.  Several Technical papers have been written.
	Is or has been a member of the following industrial standards formulating technical groups:
		NEMA
			Power Switchgear Assemblies
			Low Voltage Power Circuit Breakers
			High Voltage Circuit Breakers
			High Voltage Load Interrupter Switchgear
			Low Voltage Switch
		HVACC
			Chairman, C37.58 Load interrupter Switches
		IEEE
			Switchgear Committee
			High Voltage Circuit Breaker Subcommittee
			High Voltage Circuit Breaker Standards Revisions Working Group
			Load Current and Reactor Switching
			Partial Discharge Testing
			Transient Recovery Voltage
			Low Voltage Device Subcommittee
		ASC C37
			High Voltage Circuit Breakers
			Low Voltage Circuit Breakers
			Switchgear Assemblies
			Vice Chairman IEC Affairs
		UL TAG
			Fused Power Switching Devices
			Low Voltage Switchgear
			Medium Voltage Switchgear
		IEC
 			Technical Advisor Low Voltage Circuit Breakers 
		STLNA
			Member (Short Circuit Testing Liaison North America)

	The applicant has been responsible for originating several standards revisions in keeping with advancing 
technology.  He has been responsible for developing a United States Position among all organizations for a single 
United States Vote for Low Voltage Circuit Breakers for world wide standards.

	The applicant has written research project proposals for appropriate funding on a corporate wide basis.  
He has managed several corporate sponsored projects, and has been appointed to serve on several corporate 
oriented task-forces for the purpose of finding solutions to specific problems.

	The applicant has investigated many products liability cases and acted as an expert witness in a few court 
cases involving personal injury and loss of property.  

	Several plant projects have been administered requiring a minimal amount of investigation, engineering, 
and capital approvals.

D. Square D. Co., 1972 - 1983; Chief Engineer, Middletown.

	a. Development Engineering
	b. Order Engineering
	c. Quality Control
	d. Field Service
The Engineering Department peaked at about 60 people involving an annual budge in excess of $1,000,000.  
Products consisted of metal clad Switchgear, high voltage interrupter Switchgear, low voltage Switchgear, SF6 gas 
station circuit breakers, low voltage fused power circuit switches, safety switches, tap switches, and other 
miscellaneous products.  Specific functions were as follows:

	1. Directed supervisors who in turn had various personnel conducting specific work functions.
	2. Formulated development programs.
	3. Created budgets
	4. Rated personnel performance
	5. Directed product testing
	6. Solved technical problems
	7. Trained personnel
	8. Attended and worked with national standards committees
	9. Wrote and presented technical papers
	10. Conducted products liability investigations

Significant accomplishments:

	1. Development of an air break metal clad switchgear product line.
	2. Correction of faulty products
	3. Development of a key interlock product and associated computerized application engineering program.
	4. Installation of a Computer Aided Graphic System
	5. Development of computerized order engineering of switchgear products.
	6. Development of a service organization
	7. Development of a low voltage switchgear product.
	8. Several cost reduction programs involving hundreds of thousands of dollars.

E. Square D Company, 1962 - 1972;

		a. Development Engineer
		b. Supervisor, Development Engineering

The applicant was responsible for up to 10 engineers and draftsmen.  Products developed consisted of high voltage 
starters, relays, contactors, magnetic breaks, lifting magnets, power resistors, and limit switches.  Functions 
included the following:
	1. Drafting - layouts
	2. Prototyping
	3. Prototype testing
	4. Field Service

Significant Accomplishments:
	1. Developed one of the first vacuum H. V. Motor Starters.
	2. Developed an air magnetic H. V. Motor Starter
	3. Developed a line of DC mill duty relays

F. USAF, 1958 - 1962, Chief of Communications and Electronics

	The applicant served as an Officer as Chief of communications and Electronics for the 4397th Air 
Refueling Wing, Strategic Air Command, Randolph AFB, TX.  This responsibility included the communications 
equipment in the command post and crypto graphic materials.

G. Square D Company, 1958 - 1958 Service Engineer

	The applicant was hired and was in training as a field service engineer.  Training was shifted to 
investigative work on troublesome products.  This then led to writing of quality assurance standards for test room 
operations.

H. Reactive Metals, 1955 - 1957, Student Engineer

	During college years, summer employment was with the engineering department of Reactive Metals, a 
producer of Titanium metal. Significant accomplishments were the design and testing of Titanium furnace 
focusing coils, plant electrical layouts, machine design and drafting.

PROFESSIONAL SOCIETIES:

	IEEE (Institute of Electrical and Electronic Engineers)  -  Sr. Member

PATENTS:

	D 201279 June 8, 1965 Electric Meter Design
	D205069 June 21, 1966 Electric Motor Control Design
	3,403,239 Sept. 24, 1968 H.V. Air Break Contactor
	3,564,467 Feb. 16, 1971 Front Connected DC Relay
	3,594,526 July 20, 1971 Permanent magnet Blowout Device
	4,041,260 Aug. 9, 1977 Interlocked Plug For Circuit Breaker
	4,079,299 Mar. 14 1978 Positioning Control means for Motor Driven Rotary Tapchanger
	4,194,378 Mar 25, 1980 Combination Lock Extraction Apparatus
	4,362,915 Dec. 7, 1982 Electric Arc Confining Device
	5,477,017 Dec. 19, 1995 Electric Racking Device for Racking Circuit Breakers
	5,751,524 May 12, 1998 Ground Fault Protection Circuit for a Multiple Source System
	6,188,298 Feb, 13, 2001 Winding Transient Suppression Technique

INVENTION DISCLOSURES

	Invention disclosures are realist concepts which may or may not have immediate interest to the company.  
A patent may not materialize for a number of reasons, some of which are that the product is exposed to the public 
before the legal filing date, the patent department does not choose to pursue the patent, or the concept or product 
has low interest.  The following is a partial list since disclosures tend to get lost.  

	June 1977 - Two Headed Bolt Splicing Connection for Switchgear.   This concept is used on Bus Way 
		    	to facilitate a quick sure electrical connection.  The same can be applied to switchgear 
	            	with equal advantage.
	Dec. 1978 - Fused Power Switching Device - A switch with unique design concepts using a “LORES”, low 
			resistance contact material, and revolutionary closing design.
	April 1979 - A Movable Connector Capable of High Short Circuit Currents - A special connector designed 
			for H.V. Circuit Breaker Ground and Test Devices.
	Feb. 1982 - Measurement of Gas Pressure -  A Process of measuring SF6 Gas pressure in a closed vessel by 
			using of ultrasonic sound.
	July 1982 - Measurement of Gas Pressure - The measurement of gas pressure in a SF6 Circuit Breaker by embedding 
			a solid state transducer into the epoxy housing of the interrupter.
	July 1983 - Circuit Breaker Fan Cooling Device - The use of directly coupled current transformers as the souse 
			of power to electric fan motors.  The combination provides inherent automatic control.
	July 1985 - Electrical Contact Tips and Contact Material - A special contact material matrix which has a varying 
			resistance depending upon the axis of current.  The property would give the circuit breaker greater 
			performance by reducing contact blowoff forces.
	Aug. 1985 - Power Transformer Transient Protection - This disclosure suggest a totally new arrester and methods of 
			connecting arresters to transformers for improved transformer protection against transient voltages 
			due to power disturbances.
	Dec. 1991 - Circuit Breaker Maintenance Monitor - This device monitors a circuit breakers arc interrupting performance 
			as well as a number of other electrical and mechanical performances.  Using computer technology, the 
			performance of the breakers operation is communicated and analyzed for proper operation.  When problems 
			are discovered, the analysis provides instructions to provide proper maintenance.

PUBLISHED WORKS:

	1965  Ground Fault Protection for H.V. Motors (IEEE)
	1978  Modified Differential Ground Fault Systems (IEEE)
	1980  SF6 Puffer Type Circuit Breakers for Applications of 15kV through 38kV (IEEE)
	1981  Circuit Breaker Selections (Ohio State University)
	1983  A comparison of Vacuum and SF6 Technologies at 5kV through 38kV (IEEE)
	1992  Applications of SF6 and Vacuum Medium Voltage Circuit Breakers (IEEE)
	1993  Modified Differential Ground Fault Protection For Systems Having Multiple Sources and Grounds (IEEE)
	1993  Temperature Rise, Continuous Current, Overload Current Ratings, and Emergency Overload Current 
	      Ratings of Power Circuit Breakers and Switchgear (IEEE Tutorial)
	1995  A Case Study of the Application of Medium Voltage Circuit Breakers in Adverse 
	      Transient Recovery Voltage Conditions (IEEE)
	1995  A Case Study of Medium Voltage Power System Failures as a Result of the Loss of System Grounding. (IEEE)
	1995  Transient Recovery Voltage Considerations in the Application of Medium Voltage Circuit Breakers. (IEEE)
	2000  Elegant Ground Fault Solutions for Impossible Problems (IEEE PCIC 99-10)

EXTRA-PROFESSIONAL ACTIVITIES:

	1. Design and construction of flying model airships.
	2. Restoration of vintage full size aircraft.
	3. Mentoring a teen age boy in the engineering and construction of a single-wing, all rotating helicopter.
	4. Repair of printing presses and installation of air conditioning equipment for a printing operation.
	3. EAA (Experimental Aircraft Association) President Chapter 419

PERSONAL:

	Married:	Wife - Beverly
			Son - Ralph, MS Political Science, Major USAF
			Daughter - Carol Ann, BS Merchandising, MS Physical Fitness, Consultant
	
	Member Franklin Road Baptist Church, Deacon