Electricity: measuring and testing – Of geophysical surface or subsurface in situ – For small object detection or location
Patent
1990-06-18
1993-07-27
Strecker, Gerard R.
Electricity: measuring and testing
Of geophysical surface or subsurface in situ
For small object detection or location
324 67, 324335, 455123, G01V 311, G01V 3165, H04B 500, H03J 302
Patent
active
052313557
ABSTRACT:
The present invention generally relates to a system for use in determining the location and orientation of concealed underground objects and, more particularly, to an improved locator system having a unique and improved interface with an operator. In accordance with one embodiment of the invention, a magnetic field detector for locating concealed underground objects is provided. The magnetic field detector includes a housing having an upper housing portion and a lower housing portion. A receiver is disposed within said housing for receiving magnetic field signals from the concealed underground objects. A swivel joint couples the upper housing portion and the lower housing portion to permit relative rotational motion.
REFERENCES:
patent: 2658284 (1953-11-01), Arps
patent: 2874274 (1955-02-01), Adams et al.
patent: 2908863 (1955-10-01), Neff
patent: 3129386 (1964-04-01), Daly
patent: 3296494 (1967-01-01), Stenger, Jr. et al.
patent: 3529682 (1970-09-01), Coyne et al.
patent: 3617865 (1971-11-01), Hakata
patent: 3936728 (1976-02-01), Ghosh et al.
patent: 3988663 (1976-10-01), Slough et al.
patent: 3991363 (1976-11-01), Lathrop
patent: 4039938 (1977-08-01), Link
patent: 4044299 (1977-08-01), Weber
patent: 4161686 (1979-07-01), Weber
patent: 4201960 (1980-05-01), Skutta et al.
patent: 4227405 (1980-10-01), West
patent: 4230987 (1980-10-01), Mordwinken
patent: 4295095 (1981-10-01), Thomas et al.
patent: 4308879 (1981-12-01), Podhrasky
patent: 4348639 (1982-09-01), Karbowski
patent: 4387340 (1983-06-01), Peterman
patent: 4438389 (1984-03-01), De Sa
patent: 4452075 (1984-06-01), Bockhorst et al.
patent: 4458204 (1984-07-01), Weber
patent: 4520317 (1985-05-01), Peterman
patent: 4521913 (1985-06-01), Huber et al.
patent: 4542344 (1985-09-01), Darilek et al.
patent: 4639674 (1987-01-01), Rippingale
patent: 4652861 (1987-03-01), Domes
patent: 4657477 (1987-04-01), Shinoda
patent: 4672321 (1987-06-01), Howell
patent: 4672686 (1987-06-01), Raoux et al.
patent: 4691204 (1987-09-01), Hiramoto
patent: 4710708 (1987-12-01), Rorden et al.
patent: 4774470 (1988-09-01), Takigawa et al.
patent: 4806869 (1989-02-01), Chau et al.
patent: 4837489 (1989-06-01), McFee
Dynatel 4420 Power Cable/Fault Locator-Operator's Manual Mar. 1990.
Dynatel 500A/P Cable Locator and Dynatel 573A/P Earth Return Fault and Cable Locator Operator's Manual Apr. 1985.
Dynatel 4420 Power Cable/Fault Locator Product Bulletin 1990.
Dynatel 573DX and 573D Sheath Fault/Cable Locators--500D Cable Locator Brochure 1990.
Metrotech Locator Model 810 brochure 1980.
"Cable and Fault Locators Get a Little Smarter", Outside Plant, Aug., 1990.
RD400 Precision Buried Pipe and Cable Precision Locator Mar. 1988.
RD800: Guided Boring Tool Monitor May 10, 1990.
3D-301A Pipe-Cable Locator/Tracer product brochure Mar. 1981.
The Lynch PL-801GX11 Pipeline and Cable Locator Brochure May 31, 1989.
Fisher's M-Scope Model TW-5 Product Brochure Nov. 1979.
"Fault Finder", Industrial Equipment News Magazine, Aug., 1990.
Querry Lester R.
Rider Alan J.
Strecker Gerard R.
The Charles Machine Works, Inc.
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