GB8421920D0 - Metal detection - Google Patents
Metal detectionInfo
- Publication number
- GB8421920D0 GB8421920D0 GB848421920A GB8421920A GB8421920D0 GB 8421920 D0 GB8421920 D0 GB 8421920D0 GB 848421920 A GB848421920 A GB 848421920A GB 8421920 A GB8421920 A GB 8421920A GB 8421920 D0 GB8421920 D0 GB 8421920D0
- Authority
- GB
- United Kingdom
- Prior art keywords
- metal detection
- detection
- metal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
- G01V3/08—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices
- G01V3/10—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices using induction coils
- G01V3/101—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices using induction coils by measuring the impedance of the search coil; by measuring features of a resonant circuit comprising the search coil
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB838323246A GB8323246D0 (en) | 1983-08-30 | 1983-08-30 | Metal detection apparatus |
Publications (3)
Publication Number | Publication Date |
---|---|
GB8421920D0 true GB8421920D0 (en) | 1984-10-03 |
GB2146128A GB2146128A (en) | 1985-04-11 |
GB2146128B GB2146128B (en) | 1986-12-31 |
Family
ID=10548053
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB838323246A Pending GB8323246D0 (en) | 1983-08-30 | 1983-08-30 | Metal detection apparatus |
GB08421920A Expired GB2146128B (en) | 1983-08-30 | 1984-08-30 | Metal detection apparatus |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB838323246A Pending GB8323246D0 (en) | 1983-08-30 | 1983-08-30 | Metal detection apparatus |
Country Status (1)
Country | Link |
---|---|
GB (2) | GB8323246D0 (en) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1987000933A1 (en) * | 1985-08-06 | 1987-02-12 | Consolidated Technology Pty. Ltd. | Detector device |
GB8607747D0 (en) * | 1986-03-27 | 1986-04-30 | Duracell Int | Device |
US4902997A (en) * | 1987-06-01 | 1990-02-20 | Barkley & Dexter Laboratories, Inc. | Search coil assembly for metal detectors |
US4833773A (en) * | 1987-06-01 | 1989-05-30 | Barkley & Dexter Laboratories, Inc. | Method for making search coil assembly for metal detectors |
US4819321A (en) * | 1987-08-18 | 1989-04-11 | Barkley & Dexter Laboratories, Inc. | Method for making the search coil assembly for metal detectors |
US4949452A (en) * | 1987-06-01 | 1990-08-21 | Barkley & Dexter Laboratories, Inc. | Method for making search coil assembly for metal detectors |
US4903395A (en) * | 1987-06-01 | 1990-02-27 | Barkley & Dexter Laboratories, Inc. | Method for making search coil assembly for metal detectors |
US4870381A (en) * | 1987-06-01 | 1989-09-26 | Barkley & Dexter Laboratories, Inc. | Search coil assembly for metal detectors |
US4814734A (en) * | 1987-08-18 | 1989-03-21 | Barkley & Dexter Laboratories, Inc. | Search coil assembly for metal detectors |
GB2279757B (en) * | 1990-11-16 | 1995-06-07 | Moonstone Technology Ltd | Device for determining the presence and/or characteristics of an object or a substance |
US5307042A (en) * | 1992-02-19 | 1994-04-26 | B&D Liquidation Corp. | Search coil frame assembly for metal and method for making same |
US6177113B1 (en) * | 1995-06-27 | 2001-01-23 | Apv Crepaco, Inc. | Process for detecting plastic or elastomeric contaminants in food processing |
US6242911B1 (en) * | 1996-03-29 | 2001-06-05 | Hubertus Maschek | Field sensor and device and process for measuring electric and/or magnetic fields |
DE102010028722A1 (en) * | 2010-05-07 | 2011-11-10 | Robert Bosch Gmbh | Detecting a metallic or magnetic object |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB286301A (en) * | 1927-03-04 | 1928-10-04 | Hermann Kolitsch | Improvements in or relating to methods for the separation from one another of bodies of different composition, shape or size |
GB302725A (en) * | 1927-12-21 | 1929-10-24 | Krupp Fried Grusonwerk Ag | Improvements in or relating to the separation of materials of different physical qualities especially of raw mining products |
GB818740A (en) * | 1957-07-10 | 1959-08-19 | Metrawatt Ag | Improvements relating to electronic detecting appliances |
GB1297804A (en) * | 1968-12-03 | 1972-11-29 |
-
1983
- 1983-08-30 GB GB838323246A patent/GB8323246D0/en active Pending
-
1984
- 1984-08-30 GB GB08421920A patent/GB2146128B/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB8323246D0 (en) | 1983-09-28 |
GB2146128B (en) | 1986-12-31 |
GB2146128A (en) | 1985-04-11 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19920830 |