Abstract: A metal detector that is to be attached to a human appendage and preferably the wrist and hand of a human. A metal detector includes a housing which is to be worn strictly by the human hand or the hand and the wrist. One version of the metal detector would be in the form of a glove. The second version would be in the form of a flexible base which is mounted between the hand and the wrist by a strap arrangement. Within both versions, there is a search coil located in the palm area of the hand. A metal detection circuit battery source is mounted on the portion of the housing that is located directly against the backside of the hand.

Abstract: An electrical translation circuit for detecting the initiation and termination of a turn or change in direction of a motorcycle, automobile, boat or other like vehicle and the cancellation of the turn indicator for that vehicle. Sensors detect relative steering angle, distance and velocity of the vehicle processing same to cancel a manually operated turn indicator. The detected change in steering angle is coupled with processed signals indicative of appropriate forward movement of the vehicle. The combined signals initiate a cancellation signal which will terminate the vehicle turn indicator signal. The vehicle turn indicator signal will not be reset until there has been an appropriate retracement of the steering angle coupled with appropriate forward movement of the vehicle thereby precluding inadvertent reset signals arising from lane changes or vehicle stoppage during the turning operation.

Abstract: A planar coordinate resolving system capable of precise resolution of position coordinates of planar images, pictures, sketches, or graphical data. The system consists of a tracing board, to which is attached a dually-pivotable mechanical linkage arm combination, lying parallel to the tracing board and pivotably attached to the board at one arm end. The linkage arm combination is also pivotable at its approximate midsection and has a mechanical pointer at the free end. The pivotability allows full coverage of points on the tracing board by the pointer. A pair of electrical potentiometers located in housings on the linkage arms form the pivot mechanisms. As the arm sections are respectively pivoted, electrical analog signals, proportional to the potentiometer rotor shaft angular change, are applied to a computing device, allowing calculation of the position coordinate of the mechanical pointer location. The resolved images are ultimately displayed on a CRT display or hard-copy printer.