Electricity: measuring and testing – Of geophysical surface or subsurface in situ – For small object detection or location
Patent
1982-12-27
1985-07-16
Strecker, Gerard R.
Electricity: measuring and testing
Of geophysical surface or subsurface in situ
For small object detection or location
15143R, 74 25, 16281, 16286, 403100, G01V 308, G01V 305
Patent
active
045299374
ABSTRACT:
A metal detector assembly consisting of a metal detector box component and a supporting shaft has a spring-loaded hinge-support interconnecting the box component and the head shaft component. The hinge-support comprises a frame attachment member and a pivotally connected shaft attachment member. A coiled spring surrounds the pivot connection and is biased between shoulders on each of the two members to permit a flexing action and cause a desirable smooth horizontal arcuate swinging action of the head component of the metal detector. The device exaggerates a slight wrist movement initiated by the user and continues to swing as the user walks about thereby reducing arm fatigue and facilitating a more efficient and reliable sweeping action of the metal detector head. Alternatively, the device may further contain a spring-loaded detent mechanism in the pivot connection to optionally hold the shaft in a rigid relation to the hand held box component when desired. A further embodiment of the device includes a motor-driven pivot assembly which produces a smooth horizontal sweeping action of the detector head without physical effort by the user.
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Edmonds Warren S.
Mosely Neal J.
Strecker Gerard R.
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