Electricity: measuring and testing – Of geophysical surface or subsurface in situ – For small object detection or location
Patent
1982-09-15
1985-09-10
Strecker, Gerard R.
Electricity: measuring and testing
Of geophysical surface or subsurface in situ
For small object detection or location
16280, 224224, 2482893, 324327, G01V 311, G01V 3165, E05D 710, A45F 500
Patent
active
045409439
ABSTRACT:
A portable metal detector of the treasure finder type, comprises a shaft on the forward end of which is a conventional detector head. Intermediate the length of the shaft is a handle to be grasped by the user, whose forearm at the elbow rests in an upwardly opening cradle at the rear end of the shaft. Depending from the rear end of the shaft is a squared stud that removably fits in a squared socket held by a double-acting spring to resist horizontal swinging movement of the socket in either direction. The spring and socket are mounted on a bracket on a belt worn by the user, and overlie his hip. In another embodiment, the belt has a projection that supports the detector both when the projection is disposed over the hip and when the projection is centered in front of the user. In that latter case, the uprights forming the cradle have rotatable sleeves thereon that are grasped by the hands of the user to swing the detector from side to side. The shaft can be adjustable in length and can be cranked, so as to accommodate users of different heights.
REFERENCES:
patent: 452418 (1891-05-01), Thode
patent: 712843 (1902-11-01), Paul
patent: 774878 (1904-11-01), Henry
patent: 2504880 (1950-04-01), Rittenhouse
patent: 3106037 (1963-10-01), Harkey
patent: 3200528 (1965-08-01), Christensen
patent: 3792457 (1974-02-01), Templeton et al.
patent: 4258323 (1981-03-01), Andrews et al.
"Metalert Model 70 Metal Detector", Fisher Research Lab., Oct. 1968.
"Metalert Model 70 Valve and Box Locator", Fisher Research Lab., Jan. 1975.
Edmonds Warren S.
Strecker Gerard R.
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