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The following are miscellaneous patents related to metal detectors, such as accessories or "design patents" on mechanical packaging.
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| Download |
Patent # |
Title |
Description |
 528K |
US3836960 |
Sensor System |
VHF/UHF |
| 395K |
US3976564 |
Combination Digger and Sifter for Use With Metal Detector |
| 941K |
US4006481 |
Underground, Time Domain, Electromagnetic Reflectometry for Digging Apparatus |
High frequency wide spectrum detector mounted to a digging tool |
| 458K |
US4529937 |
Metal Detector With Spring Loaded Hinged Support |
| 435K |
US4540943 |
Belt-Supported Swingable Metal Detector |
| 356K |
US4560935 |
Remote Actuator for Metal Detector Discriminating Adjust Switch |
| 213K |
US4594559 |
Metal Detector Audio Amplifier |
| 332K |
US4641091 |
Device for Testing and Calibrating Treasure Hunting Metal Detectors |
| 365K |
US4644290 |
Metal Detector Audio Amplifier |
| 639K |
US4719421 |
Metal Detector for Detecting Product Impurities |
Auto phase adjustment |
| 410K |
US4779777 |
Support Bracket for Metal Detector |
| 718K |
US4797618 |
Caddy for Metal Detector |
| 210K |
US4983281 |
Metal Detector Scoop Sifter |
| 1747K |
US5045789 |
Detector for Detecting Foreign Matter in Object by Using Discriminant Electromagnetic Parameters |
| 406K |
US5138262 |
Metal Detector Having Detachable Battery and Speaker Housing |
Garrett |
| 680K |
US5247257 |
Electronic Metal Detector Return Signal Phase Changer |
A nail and two coils, weird. I don't know what to make of this one. |
| 571K |
US5501283 |
Hole Cutting Device for Recovering Targets Located with a Metal Detector Audio Amplifier |
| 167K |
US5696490 |
FM (VHF) Infrared Wireless Digital Metal Detector |
| 876K |
US5896031 |
Quad Coil Vibration Cancelling Metal Detector |
| 846K |
US5963035 |
Electromagnetic Induction Spectroscopy for Identifying Hidden Objects |
Multi-frequency method, interesting data |
| 970K |
US5994897 |
Frequency Optimizing Metal Detector |
| 190K |
US6791329 |
Portable Metal Detection and Classification System |
Detector on wheels |
| 214K |
US6838886 |
Method and Apparatus for Measuring Inductance |
Vehicle method |
| 132K |
US6870370 |
Electromagnetic Induction Detection System |
Airborne method |
| 88K |
US7081754 |
Metal Detection System With a Magnetometer Head Coupleable to Conventional Footwear and Method of Use |
Metal detector on your shoe |
| 457K |
US7123016 |
Systems and Methods Useful for Detecting Presence and/or Location of Various Materials |
A mish-mash of techniques, see 6724191 |
| 142K |
US7132943 |
Moving Belt Sensor |
| 163K |
US7288927 |
Remote Substance Identification and Location Method and System |
Supposedly an infrared molecular locator (LRL?) |
| 139K |
US7310586 |
Metal Detector with Data Transfer |
Minelab, transfer of operating parametrics |
| 176K |
US7575065 |
Metal Detector with Excavation Tool |
Garrett pinpointer |
| 218K |
US8854043 |
Method for Displaying Metal Detection Information |
Minelab |
| 322K |
US9239400 |
Method for Separating Target Signals from Unwanted Signals in a Metal Detector |
Minelab |
| 1451K |
US10078148 |
Metal Detector |
Minelab, DSP |
| 939K |
US10838103 |
Effective Target Detection Depth Information for Metal Detectors |
Minelab, DSP |
| 1338K |
US10969511 |
Signal Processing Technique for a Metal Detector |
Minelab, GB technique |
| 268K |
US11067715 |
Signal Processing Technique for a Metal Detector |
Minelab, DSP |
| 172K |
US11333785 |
Metal Detector |
Minelab, GB technique |
| 150K |
US11513252 |
Metal Detector |
Minelab, Accelerometer |
| 226K |
EP0790507 |
Metal Detector with Pivoting Detector Coil... |
Lockable coil pivot |