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Walk-through metal detector system and method 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • G08B-013/24
출원번호 US-0263162 (1999-03-05)
발명자 / 주소
  • Johnstone James Christian
  • Freshour Sidney Glenn
출원인 / 주소
  • FRL, Inc.
대리인 / 주소
    Flehr Hohbach Test Albritton & Herbert LLP
인용정보 피인용 횟수 : 23  인용 특허 : 25

초록

Walk-through ferrous metal detector and method in which potential carriers of weapons and other ferrous metal objects pass through a surveillance area in which the earth's magnetic field is monitored, and disturbances in the field due to movement of ferrous metal objects are detected.

대표청구항

[ What is claimed is:] [25.] A portable walk-through metal detector, comprising a pair of tubular uprights positioned on opposite sides of a surveillance area in which moving ferrous metal objects can be detected by disturbances they produce in a steady-state reference magnetic field, vertically pai

이 특허에 인용된 특허 (25)

  1. Anderson ; III Philip M. (Madison NJ) Hasegawa Ryusuke (Morristown NJ) VonHoene Robert M. (Basking Ridge NJ), Amorphous antipilferage marker.
  2. Lichtblau George J. (23 Pin Pack Rd. Ridgefield CT 06877), Continuously armed high reliability pulse train processor.
  3. Cooper Michael N. (Flushing NY), Detection of articles in adjacent passageways.
  4. Vercellotti Leonard C. (Oakmont PA) Mandel Alan F. (Mt. Lebanon PA) Ravas Richard J. (Penn Twp. ; Westmoreland County PA) Schlotterer John C. (Murrysville PA) Neuner James A. (Richland Township ; All, Dual mode electronic identification system.
  5. Cooper Michael N. (Hewlett NY) Hoffer Erik (Somerset NJ), Electromagnetic asset protection system.
  6. Boyd Robert C. (Scottsdale AZ) La Patra Charles L. (Chandler AZ), Electronic article surveillance security system.
  7. Feltz John F. (Fairborn OH) Taylor John W. (Springboro OH) Vuketich Richard S. (Dayton OH), Electronic article surveillance system utilizing synchronous integration.
  8. Jaquet James R. (Wilmington DE), Ferromagnetic metal detector utilizing gradiometers positioned on opposite sides of the detection area with overlapping.
  9. Schwartz ; Malcolm M. ; Jaquet ; James R., Harmoic flux gate magnetometers and gradimeters and windings.
  10. Clements Philip E. (Littleton CO), Hinged metal detection cover for a receptacle.
  11. Frahm Steven D. (El Paso TX) Turner John E. (El Paso TX), Metal detection system.
  12. Domes David C. (Pacheco CA), Method and apparatus for protecting buried optical fiber cable.
  13. Keller Helmut,DEX, Method of and measuring arrangement for metal detection with a coil device having several separately controllable region.
  14. Geiszler Theodore D. (Los Gatos CA) Wilenken Richard (San Jose CA), Motion detection system.
  15. Leyden Roger J. (Willow Springs IL) Surma Terrance (Bloomingdale IL), Mountable product sensor and display stand.
  16. Park Byung Yong,KRX, Pistol detection system.
  17. Schuman, Mark, Pressure modulated alarm system.
  18. Sala Nicola R. (61 Hyannis Avenue Nepean ; Ontario CAX K2J 3G2 ) Sala Rocco L. (62 Palsen Street Nepean ; Ontario CAX K2G 2W4 ), Proximity alarm system.
  19. Lahr William E. (Compton CA), Pulse induction metal detector.
  20. Gore Milton W. (16036 N. 47th Dr. Maricopa County ; Glendale AZ 85306), Pulsed ultra sonic swimming pool alarm apparatus.
  21. Vernace Salvatore J. (890 Nafa Dr. Boca Raton FL 33487) Vernace Vincent (890 Nafa Dr. Boca Raton FL 33487) Lombardo Giuseppe (Via Bartolomeo Perestello 5 Palermo ITX 90151 ), Remote control protective holder and detection device.
  22. Stoffer James F. (Miamisburg OH), System and method for synchronizing a receiver of an electronic article surveillance system and a transmitter thereof.
  23. Miller Robert C. (Pittsburgh PA) Mallick George T. (Pittsburgh PA), Trapezoidal coil configuration for metal detector in the shape of an inverted U.
  24. Karbowski James P. (Philomath OR) Rohde Mark W. (Scio OR), Walk-through metal detector.
  25. Parks Stephen I. (Derwood MD), Walk-through metal detector.

이 특허를 인용한 특허 (23)

  1. Journet, Francois, Automatic access gate.
  2. Hoult,David I., Detection of ferromagnetic objects approaching a magnet.
  3. Manneschi, Alessandro, Detector of unauthorised objects in a protected access zone.
  4. Falkenberg, Verner, Electronic anti-theft protection system.
  5. Massengill,R. Kemp; Jeffers,Frederick J., Enhancement magnetizer for magnetic resonance imaging screening.
  6. Kopp, Keith, Ferromagnetic detection enhancer compatible with magnetic resonance.
  7. Massengill,R. Kemp; Jeffers,Frederick J.; McClure,Richard J., Ferromagnetic detection pillar.
  8. Keene,Mark Nicholas, Ferromagnetic object detector.
  9. Kopp,Keith A., MRI protector.
  10. Manneschi,Alessandro, Magnetic resonance detector for detecting non-authorized materials in footwear.
  11. Czipott,Peter V.; Kumar,Sankaran; Wolff,Stephen; Burnett,Lowell J.; McClure,Richard J.; Massengill,R. Kemp; Avrin,William F., Magnetic resonance imaging screening method and apparatus.
  12. Fluck,Frederick Dean, Metal detection system and method.
  13. Bybee, Mark T., Metal detector.
  14. Manneschi, Alessandro, Metal detector gate comprising refined indicator means.
  15. Czipott, Peter V.; Kumar, Sankaran; Wolff, Stephen; Burnett, Lowell J.; McClure, Richard J.; Massengill, R. Kemp; Avrin, William F., Method for excluding magnetic objects from magnetic resonance imaging facility.
  16. Falkenberg, Verner; Sorensen, Soren, Method, a device and a system for preventing false alarms in a theft-preventing system.
  17. Czipott, Peter V.; Kumar, Sankaran; Wolff, Stephen; Burnett, Lowell J., Screening method and apparatus.
  18. Czipott,Peter V.; Kumar,Sankaran; Burnett,Lowell J.; Wolff,Stephen; McClure,Richard J., Screening method and apparatus.
  19. McClure,Richard J.; Jeffers,Frederick J.; Massengill,R. Kemp, Screening method and apparatus.
  20. Czipott,Peter V.; Kumar,Sankaran; Wolff,Stephen; Burnett,Lowell J.; McClure,Richard J.; Massengill,R. Kemp; Avrin,William J., Security screening method and apparatus.
  21. Small, Farrell, Security system portal.
  22. Gehlot, Narayan L.; Lawrence, Victor B., Space area network.
  23. Arthur Dale Burns, Walk-through security device having personal effects view port and methods of operating and manufacturing the same.
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