Electricity: measuring and testing – Of geophysical surface or subsurface in situ – For small object detection or location
Reexamination Certificate
2006-05-02
2006-05-02
Patidar, Jay (Department: 2862)
Electricity: measuring and testing
Of geophysical surface or subsurface in situ
For small object detection or location
C175S045000
Reexamination Certificate
active
07038454
ABSTRACT:
A system and method use magnetic field sensing to detect underground objects for strike avoidance. The system detects magnetic field components for both passive distortions in the magnetic field indicative of a ferromagnetic object and active magnetic fields that are impressed on an object by a signal generator. A detection module has a magnetic sensor assembly that detects the magnetic field components. The magnetic field component data is transferred through a multiplexer to an analog/digital converter to a processor. Pitch angle data from a pitch sensor and roll angle data from a roll sensor also may be transferred to the processor. The data is processed by the processor to determine the orientation of the detection module with respect to the object. The detection module may be installed in an underground boring tool or a trenching assembly.
REFERENCES:
patent: 3529682 (1970-09-01), Coyne et al.
patent: 3589454 (1971-06-01), Coyne
patent: 3712391 (1973-01-01), Coyne
patent: 4072200 (1978-02-01), Morris et al.
patent: 4639674 (1987-01-01), Rippingale
patent: 4700142 (1987-10-01), Kuckes
patent: 4710708 (1987-12-01), Rorden et al.
patent: 4875014 (1989-10-01), Roberts et al.
patent: 5002137 (1991-03-01), Dickinson et al.
patent: 5064006 (1991-11-01), Waters et al.
patent: 5155442 (1992-10-01), Mercer
patent: 5218301 (1993-06-01), Kuckes
patent: 5258755 (1993-11-01), Kuckes
patent: 5513710 (1996-05-01), Kuckes
patent: 5515931 (1996-05-01), Kuckes
patent: 5657826 (1997-08-01), Kuckes
patent: 5711381 (1998-01-01), Archambeault et al.
patent: 5725059 (1998-03-01), Kuckes et al.
patent: 5994904 (1999-11-01), Eslambolchi et al.
patent: 0366567 (1990-05-01), None
patent: 0428180 (1991-05-01), None
Gard Michael F.
Jin Jian
Patidar Jay
The Charles Machine Works, Inc.
Tomlinson & O'Connell PC
LandOfFree
System and method for detecting an underground object using... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with System and method for detecting an underground object using..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System and method for detecting an underground object using... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3616573