Coil current loading the induction coils of an induction heating apparatus is directly sensed at the input from the tank circuit and the derived feedback current signal is used to control the power supply to the tank circuit be reference to a signal provided manually or automatically under process control. A voltage feedback signal is derived with a transformer from the input to the tank circuit for providing an input to a voltage limiter operative on the current controller when the voltage to the tank circuit exceeds an acceptable limit. A current limiter overrides the current controller to limit the load current by control of the current controller when the load becomes excessive.
William E. Frank - Baltimore MD Chuck F. Der - Sykesville MD
Assignee:
Westinghouse Electric Corp. - Pittsburgh PA
International Classification:
H05B 606
US Classification:
219 1077
Abstract:
A solid state radio frequency high power generator for induction heating applications uses MOSFET devices controlled at radio frequency by a current loop which is automatically corrected against the possible occurrence of a leading phase shift by a voltage-current phase shift detection loop which responds to digital signals corrected against inherent time delays.
William E. Frank - Baltimore MD Erwin A. Billman - Baltimore MD
Assignee:
Westinghouse Electric Corp. - Pittsburgh PA
International Classification:
H05B 606 H01F 4006
US Classification:
219 1077
Abstract:
In an induction heating apparatus, direct sensing of the high frequency high power current flowing in the tank circuit to load the induction coils, is obtained with a coil current measuring transformer comprising one of the power current busses leading to the induction coil and a secondary winding of many ampere-turns wound around said one bus. The bus is given a half-loop shape to accommodate the secondary winding. The secondary winding is made of a magnetic core wound with many turns of Litz wire. Cooling tubes are cemented outside the wound secondary with conductive cement to form a heat sink with a circulation of cooling medium through the tube. The cement is divided in two parts separated by gaps to prevent circulation of induced currents. A cooling tube is installed between the core and wound wire to provide an internal heat sink.
Dr. Frank graduated from the University of Iowa Carver College of Medicine in 1972. He works in Bay Shore, NY and 1 other location and specializes in Nephrology. Dr. Frank is affiliated with Good Samaritan Hospital Medical Center, Good Samaritan Regional Medical Center and Southside Hospital.
Dr. Frank graduated from the Georgetown University School of Medicine in 1977. He works in Sanford, ME and specializes in Family Medicine. Dr. Frank is affiliated with SMHC Sanford Hospital.
Overbye Transport, Inc. - Lakeville, MN since Jul 2012
Safety Director
Steve Yaggy Specialized Truck Service, Inc. Jun 2009 - Jul 2012
General Manager
Lawrence Risk Management Services Apr 2005 - May 2009
President
Lawrence Transportation Co. Oct 1992 - Apr 2005
VP-Safety & Administration
Schanno Transportation Co. Nov 1978 - Oct 1992
Safety Director
Education:
Rasmussen College 1976 - 1978
Associates, Accounting and Business Administration
Skills:
Financial Reporting Administration Employee Relations Insurance Logistics Microsoft Office Risk Management System Administration Truckload Transportation Freight
Honor & Awards:
Schanno Transportation, 1986 Grand Trophy Winner, Truckload Carriers Association
Lawrence Transportation, 2003 Grand Trophy Winner, Truckload Carriers Association
Lawrence Transportation, 1997 Grand Trophy Winner, Minnesota Trucking Association
Safety Professional of the Year, Minnesota Trucking Association, 1990 and 2004
Outstanding Service Award, Minnesota Trucking Association, 2002
Office Coordinator At Capen Frank Proctor & Bowles
Mar 2010 to 2000 Director of Operations for the Chief Information Officer (CIO)Navy Medicine
Oct 2005 to 2000Navy Medicine
Jan 2008 to Mar 2010 On-Site Project Manager (PM)Navy Medicine
Oct 2005 to Jan 2008 Program AnalystNaval Health Clinic Annapolis, MD Jun 2003 to 2005 CEO (Commanding Officer)Naval Medical Clinic Pearl Harbor
Sep 2000 to Jun 2003 COO (Executive Officer)U.S. Pacific Fleet Headquarters, Pearl Harbor
Jun 1998 to Sep 2000 COO (Deputy Fleet Surgeon)Senior Medical Staff Officer Marine Corps Combat DevelopmentQuantico, VA Jun 1995 to Jul 1998United States Transportation Command Scott AFB Belleville, IL Jan 1993 to Jul 1995 Medical Operations Chief
Education:
American College of Healthcare Executives 1974 to 2005 ManagementSouthern Illinois University Carbondale, IL Bachelor of Science in Health Care AdministrationWebster University St. Louis, MO Master of Arts in Health Facilities Management
Past: Air Force Was in the air force from 18 may 1954 to 10 june1984.Worked Incirlik ab turkey civil service from jun 86 t nov 92 ran the auto hobby shop.