|
US3838409A
(en)
*
|
1973-04-13 |
1974-09-24 |
Knogo Corp |
Field strength uniformity control system for article theft detection system
|
|
US3818430A
(en)
*
|
1973-04-30 |
1974-06-18 |
United Aircraft Corp |
Traffic detector using balun transformer phase detector
|
|
US3872380A
(en)
*
|
1974-01-02 |
1975-03-18 |
Robert F Gardiner |
Metal detector distinguishing between different metals by using a bias circuit actuated by the phase shifts caused by the metals
|
|
US4030026A
(en)
*
|
1974-11-25 |
1977-06-14 |
White's Electronics, Inc. |
Sampling metal detector
|
|
DE2524975C2
(de)
*
|
1975-06-05 |
1985-08-08 |
Messerschmitt-Bölkow-Blohm GmbH, 8000 München |
Einrichtung zur berührungslosen Messung des Abstandes zu elektrisch oder magnetisch leitenden Gegenständen
|
|
GB1540236A
(en)
*
|
1976-07-14 |
1979-02-07 |
Spencer P |
Metal detectors
|
|
US4099116A
(en)
*
|
1977-01-17 |
1978-07-04 |
Tyndall Jerry C |
Metal detector with phase related circuit selective discrimination
|
|
US4128803A
(en)
*
|
1977-04-29 |
1978-12-05 |
Pni, Inc. |
Metal detector system with ground effect rejection
|
|
GB1603578A
(en)
*
|
1978-08-25 |
1981-11-25 |
Univ Georgetown |
System and method for identifying samples having conductive properties
|
|
US4303879A
(en)
*
|
1979-01-29 |
1981-12-01 |
Garrett Electronics |
Metal detector circuit with mode selection and automatic tuning
|
|
US4334192A
(en)
*
|
1979-01-29 |
1982-06-08 |
Garrett Electronics |
Metal detector circuit having automatic tuning with multiple rates
|
|
US4348639A
(en)
*
|
1979-05-18 |
1982-09-07 |
Triple Dee Electronics Inc. |
Transmitter-receiver loop buried metal object locator with switch controlled reference voltage
|
|
US4300097A
(en)
*
|
1979-07-27 |
1981-11-10 |
Techna, Inc. |
Induction balance metal detector with ferrous and non-ferrous metal identification
|
|
US4325027A
(en)
*
|
1979-11-28 |
1982-04-13 |
Compass Electronics |
Metal detector for locating objects with full sensitivity in the presence of distributed mineral material
|
|
DE3274391D1
(en)
*
|
1981-02-09 |
1987-01-08 |
Goring Kerr Ltd |
Metal detection apparatus
|
|
EP0062396A3
(en)
*
|
1981-03-26 |
1983-06-22 |
Environmental Products Corporation |
Aluminium can detector
|
|
FR2507785A1
(fr)
*
|
1981-06-11 |
1982-12-17 |
Lassus Jacques |
Detecteur de metaux
|
|
US4507612A
(en)
*
|
1981-11-25 |
1985-03-26 |
Teknetics, Inc. |
Metal detector systems for identifying targets in mineralized ground
|
|
FR2518269A1
(fr)
*
|
1981-12-10 |
1983-06-17 |
Lassus Jacques |
Detecteur de metaux
|
|
US4709213A
(en)
*
|
1982-07-23 |
1987-11-24 |
Garrett Electronics, Inc. |
Metal detector having digital signal processing
|
|
US4639674A
(en)
*
|
1983-04-11 |
1987-01-27 |
Schonstedt Instrument Company |
Apparatus and method employing extraneous field compensation for locating current-carrying objects
|
|
US4628265A
(en)
*
|
1983-04-22 |
1986-12-09 |
Frl, Inc. |
Metal detector and classifier with automatic compensation for soil magnetic minerals and sensor misalignment
|
|
US4700139A
(en)
*
|
1984-10-29 |
1987-10-13 |
Garrett Electronics, Inc. |
Metal detector circuit having selectable exclusion range for unwanted objects
|
|
US4727330A
(en)
*
|
1985-01-07 |
1988-02-23 |
Conductivity Diagnostics Research |
Method and apparatus for measuring the electrical conductivity of a subject
|
|
GB8517257D0
(en)
*
|
1985-07-08 |
1985-08-14 |
Goring Kerr Plc |
Metal detector
|
|
DE3530082A1
(de)
*
|
1985-08-22 |
1987-02-26 |
Micro Epsilon Messtechnik |
Verfahren zum beruehrungslosen vermessen elektrisch leitfaehiger objekte und vorrichtung zur durchfuehrung des verfahrens
|
|
DE3567112D1
(en)
*
|
1985-11-02 |
1989-02-02 |
Vallon Gmbh |
Metal detector for detecting metal objects
|
|
US4782282A
(en)
*
|
1986-07-09 |
1988-11-01 |
Dickey-John Corporation |
Capacitive-type seed sensor for a planter monitor
|
|
WO1988003273A1
(en)
*
|
1986-10-23 |
1988-05-05 |
Peerless-Winsmith, Inc. |
Detection/identification apparatus
|
|
US4821023A
(en)
*
|
1988-01-07 |
1989-04-11 |
Del Norte Technology, Inc. |
Walk-through metal detector
|
|
US5028870A
(en)
*
|
1989-04-18 |
1991-07-02 |
Environmental Products Corporation |
Sensor system method and apparatus for discrimination of metallic objects based on a variation in self inductance
|
|
GB2255184B
(en)
*
|
1991-04-22 |
1995-08-16 |
Tokyo Gas Co Ltd |
Flaw detector for metal material
|
|
JP2529979Y2
(ja)
*
|
1991-11-05 |
1997-03-26 |
株式会社ユニシアジェックス |
センサ処理回路
|
|
US5721489A
(en)
*
|
1995-10-06 |
1998-02-24 |
Garrett Electronics, Inc. |
Metal detector method for identifying target size
|
|
WO2003032011A2
(en)
*
|
2001-10-10 |
2003-04-17 |
Ranger Security Detectors Inc. |
System and method for scanning individuals for illicit objects
|
|
EP1432288B1
(en)
*
|
2002-12-16 |
2008-07-09 |
Whirlpool Corporation |
Pan detection system and method using such system
|
|
DE102005002238A1
(de)
*
|
2005-01-18 |
2006-07-20 |
Robert Bosch Gmbh |
Sensor zur Ortung metallischer Objekte sowie Messgerät mit einem solchen Sensor
|
|
FR2901888B1
(fr)
*
|
2006-05-30 |
2008-08-22 |
Alessandro Manneschi |
Portique detecteur de metaux comportant des moyens indicateurs perfectionnes
|
|
WO2008029093A1
(en)
*
|
2006-09-04 |
2008-03-13 |
Ecs Technology Limited |
Apparatus for and method of detecting a conductive object
|
|
WO2009148668A2
(en)
*
|
2008-03-07 |
2009-12-10 |
California Institute Of Technology |
Effective-inductance-change based magnetic particle sensing
|
|
US20100186525A1
(en)
*
|
2009-01-26 |
2010-07-29 |
Chris Mashburn |
Wheelchair and Method of Security Screening a Wheelchair
|
|
US9599591B2
(en)
|
2009-03-06 |
2017-03-21 |
California Institute Of Technology |
Low cost, portable sensor for molecular assays
|
|
RU2398248C1
(ru)
*
|
2009-07-20 |
2010-08-27 |
Федеральное государственное образовательное учреждение высшего профессионального образования Сибирский федеральный университет (СФУ) |
Способ обнаружения мелких металлических предметов и устройство для его осуществления
|
|
EP2489025B9
(en)
|
2009-10-16 |
2017-11-15 |
Alert Systems ApS |
An electronic anti-theft protection system
|
|
EP2674791B1
(en)
*
|
2012-06-15 |
2016-01-13 |
Mettler-Toledo Safeline Limited |
Device and method for detecting metallic contaminants in a product
|
|
DE102013209805A1
(de)
*
|
2013-05-27 |
2014-11-27 |
iCONTROLS k.s. |
Induktiver Sensor
|
|
CN104977620A
(zh)
*
|
2015-08-12 |
2015-10-14 |
苏州宝润电子科技有限公司 |
异物监测与磁饱和的能量传输优化
|