Metal detector employing static discrimination

Details Metal detector employing static discrimination Metal detector employing static discrimination

2005-06-28

2005-06-28

Patidar, Jay (Department: 2862)

Electricity: measuring and testing

Of geophysical surface or subsurface in situ

For small object detection or location

C324S329000

Reexamination Certificate

active

06911823

ABSTRACT:
A metal detector employing static discrimination. Within the scope of the invention is a two-frequency method and apparatus for discriminating between metal objects and ground. Also within the scope of the invention is a three-frequency method and apparatus for discriminating between ferrous and non-ferrous metal objects. The methods and apparatus do not require movement of the search head of the metal detector.

REFERENCES:
patent: 3686564 (1972-08-01), Mallick, Jr. et al.
patent: 3986104 (1976-10-01), Randolph, Jr.
patent: 4263551 (1981-04-01), Gregory et al.
patent: 4300097 (1981-11-01), Turner
patent: 4439734 (1984-03-01), Weber
patent: 4486712 (1984-12-01), Weber
patent: 4486713 (1984-12-01), Gifford
patent: 4628265 (1986-12-01), Johnson et al.
patent: 4678992 (1987-07-01), Hametta
patent: 4853617 (1989-08-01), Douglas et al.
patent: 4894618 (1990-01-01), Candy
patent: 4942360 (1990-07-01), Candy
patent: 4992741 (1991-02-01), Douglas et al.
patent: 5028870 (1991-07-01), Reed
patent: 5047718 (1991-09-01), Aittoniemi et al.
patent: 5365169 (1994-11-01), Hosohara et al.
patent: 5405143 (1995-04-01), Takemoto et al.
patent: 5506506 (1996-04-01), Candy
patent: 5521583 (1996-05-01), Frahm et al.
patent: 5523739 (1996-06-01), Manneschi
patent: 5576624 (1996-11-01), Candy
patent: 5642050 (1997-06-01), Shoemaker
patent: 5680048 (1997-10-01), Wollny
patent: 5680103 (1997-10-01), Turner et al.
patent: 5721489 (1998-02-01), Weaver et al.
patent: 5729143 (1998-03-01), Tavernetti et al.
patent: 5777478 (1998-07-01), Jackson
patent: 5786696 (1998-07-01), Weaver et al.
patent: 5959451 (1999-09-01), De Torfino
patent: 5963035 (1999-10-01), Won
patent: 6087833 (2000-07-01), Jackson
patent: 6104193 (2000-08-01), Bell
patent: 6286370 (2001-09-01), Sinha

Affiliated with

Also associated with

Rating

Metal detector employing static discrimination does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Metal detector employing static discrimination, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Metal detector employing static discrimination will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3515921