Abstract: The present invention provides a drug injection device (100, 100?, 100?) comprising a first element (130) and a second element (102, 102?, 102?) configured to undergo movement relative to each other corresponding to an action performed on or by the drug injection device (100, 100?, 100?), wherein the first element (130) comprises serially disposed protrusions (133), and wherein the second element (102, 102?, 102?) comprises a second element base and a deflectable transducer (170, 170?, 170?). The deflectable transducer (170, 170?, 170?) defines a base portion attached to the second element base, and a deflectable portion (162) configured for sequentially cooperating with the plurality of protrusions (133), wherein a processor (165) is electrically connected with the deflectable transducer (170, 170?, 170?) to register activation signals.

Abstract: A propulsion device for a floating structure, especially a watercraft, includes an essentially horizontally disposed wing which is rotatably connected to the craft and is arranged to carry out a tilting movement and provide for propulsion of the craft by relative vertical movement between the wing and the surrounding water. The wing is mounted in such a manner as to be capable of turning 360.degree. about its tilting axis, the tilting axis being located at or somewhat ahead of the balance point for lift of the wing, as viewed in the horizontal direction in which the craft is moving. A system for returning the wing towards a neutral horizontal position after the wing has angularly deviated therefrom includes a control system which, based upon a signal received from a position detector, controls a motor that exerts torque on the wing in the direction towards the neutral position.

Abstract: A wave motor for propulsion of a floating device, especially a watercraft, comprises a downwards extending supporting structure connected to the craft. An essentially horizontally disposed, plate-like tilting element, at a forwrad portion thereof as viewed in the cruising direction, is pivotally connected to the lower end of the supporting structure. This arrangement results in a tilting movement as a result of relative movement between the tilting element and the surrounding water when the craft is floating on the water and is raised and lowered due to wave action, the tilting movement being limited by upper and lower stops arranged on the supporting structure. The supporting structure is arranged to effect an essentially vertical, relative movement in relation to the craft, and is maintained in an intermediate position and returned to this position when it has been moved away from the intermediate position by influence of wave forces.

Abstract: There is disclosed an improvement in wave motors for propulsion of boats, of the type comprising a supporting structure connected to the boat and extending downwards into the water, and a tilting element connected to the supporting structure, the tilting element being adapted to tilt when the boat is moved by the waves. The motor according to the invention is provided with force applying devices always trying to bring the tilting element back into a neutral position when it is angularly displaced away from this, thereby increasing the efficiency of the wave motor.