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2025
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G/S
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Metal detectors |
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2022
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Invention
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Metal detector |
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2021
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G/S
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Metal Detectors. |
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G/S
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Electronic detectors for observing and measuring the infrared spectrum using thermographic or inf... |
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G/S
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Metal Detectors |
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2020
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Invention
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Metal detector search coil |
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2016
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Invention
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Auto nulling of induction balance metal detector coils. A metal detector has a large primary tran... |
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Invention
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Ground search metal detector assembly. A ground search metal detector with a pivotally mounted se... |
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Invention
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Gold pan. A gold pan having an acentric frustoconical configuration to enhance the material separ... |
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Invention
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Gold pan |
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G/S
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hand tools in the nature of specially designed plastic pans for panning for gold and similar mate... |
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2015
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Invention
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Hand metal detector with hermetic housing. A hermetically sealed metal detector includes a plasti... |
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2014
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Invention
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Metal detector with hermetic housing. A hermetically sealed metal detector includes a plastic hou... |
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Invention
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Ground eliminating metal detector. Remanent ground response is induced by rapid high current in a... |
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2013
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Invention
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Truncated half-sine methods for metal detectors. This invention relates to a metal detector where... |
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G/S
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metal detectors. |
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2011
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Invention
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Constant current metal detector. A constant current is provided to an energizing coil in a magnet... |
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Invention
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Time domain method and apparatus for metal detectors. This invention provides a pulse induction m... |
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Invention
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Hybrid induction balance/pulse induction metal detector. A new hybrid metal detector combines ind... |
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G/S
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metal detectors |
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2010
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Invention
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Metal detector analysis and display methods. Metal detectors use graphical displays offering many... |
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G/S
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Metal detectors. |
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G/S
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Metal detectors.
Metal detectors. |
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2009
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Invention
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Dual field search coil for pulse induction metal detectors. A new dual field search coil for puls... |
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2008
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G/S
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Hand-held metal detectors |
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G/S
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Hand-held metal detectors, namely, metal detectors for ground searching |
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Invention
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Metal detector with excavation tool. A hand-held metal detector and soil excavation device useful... |
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Invention
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Hand held metal detector |
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2007
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G/S
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Hand-held metal detectors. |
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G/S
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Hand-held metal detectors. |
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2006
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Invention
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Metal detection methods and apparatus wherein a numeric representation of the sense signal and a ... |
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2004
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Invention
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Detector for non-ferrous metals with reduced false positive responses. A metal detector for detec... |
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Invention
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Metal detector having a plurality of phase delay discrimination regions with corresponding select... |
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2003
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Invention
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Metal detector employing static discrimination. A metal detector employing static discrimination.... |
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Invention
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Tactical hand-held metal detector |
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2002
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Invention
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Pulse induction metal detector having high energy efficiency and sensitivity. A pulse induction m... |
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Invention
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Method and apparatus for distinguishing metal objects employing multiple frequency interrogation.... |
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2001
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Invention
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Hand-held metal detector |
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1998
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Invention
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Dual field metal detector. A metal detector has multiple transmit and receive coils for producing... |
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1997
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Invention
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Metal detector for identifying target electrical characteristics, depth and size. A metal detecto... |
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1995
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Invention
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Plural frequency method and system for identifying metal objects in a background environment. A s... |
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Invention
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Plural frequency method and system for identifying metal objects in a background environment usin... |
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Invention
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Metal detector method for identifying target size. A metal detector utilizes digital signal proce... |
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Invention
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Method and apparatus for displaying signal information from a metal detector. A metal detector ha... |
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1993
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Invention
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Pulse induction metal detector. Metal detector apparatus includes an increased pulse transmit fre... |
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1992
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Invention
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Metal detector with bivariate display. A metal detector having a receive signal responsive to det... |
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1990
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G/S
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[mineral and] metal detectors |
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G/S
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hand-held metal detectors |
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Invention
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Metal detector having target characterization and search classification. A metal detector is prov... |
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Invention
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Metal detector having detachable battery and speaker housing. A hobby-style metal detector includ... |
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1988
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Invention
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Static charge dissipating housing for metal detector search loop assembly. A housing for the magn... |
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Invention
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Metal detector with microprocessor control and analysis. A metal detector for use in locating obj... |
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1986
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Invention
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Metal detector with circuits for automatically screening out the effects of offset and mineralize... |
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1985
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Invention
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Walk-through metal detector |
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Invention
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Metal detector having digital signal processing. A metal detector circuit includes a transmit coi... |
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1984
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Invention
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Metal detector circuit having selectable exclusion range for unwanted objects. A metal detector c... |
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1980
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G/S
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Mineral and metal detectors and component parts therefor. |
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G/S
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Mineral and Metal Detectors and Components Thereof |
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1979
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G/S
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[Mineral and] Metal Detectors [and Components Thereof] |
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Invention
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Balanced search loop for metal detector. A search loop for a metal detector is described having a... |
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1978
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Invention
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Wide pulse gated metal detector with improved noise rejection. A transmit-receive type buried met... |
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1976
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G/S
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PLASTIC PANS OF SPECIAL DESIGN USEFUL FOR PANNING FOR GOLD AND SIMILAR MATERIALS OF HIGH SPECIFIC... |
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1974
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Invention
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Sampling metal detector. A sampling type of metal detector is described in which an oscillator tr... |
