Abstract: Described herein are encapsulation devices that include an inner layer, an outer layer, a cell containment layer positioned between the inner and outer layer, and structural elements disposed within the cell containment layer to separate the inner and outer layers by a separation distance. The structural elements define reservoir spaces for the retention of a biological moiety (such as cells) therein. The structural elements maintain a separation distance both under external compressive forces and under internal expansive forces, such as undergoing a geometric change in the encapsulation device or during crushing and subsequent expansion of the cell encapsulation device. In some embodiments, a reinforcing layer is positioned between the inner layer and the cell containment layer. In addition, the encapsulation device may include at least one configuration element. Methods of placing encapsulation devices in a body conduit intra-luminally, extra-luminally, and via an open surgical procedure are also disclosed.

Abstract: A pedal generator having a single foot operated pedal, and spring biased means for converting oscillatory movement of the pedal into drive for an alternator, the pedal comprises a pedal lever (2) connected to a drive shaft (3) and movable between raised position and a lowered position so that a user can impart rotation to the drive shaft (3).

Abstract: The invention concerns a handheld power generator for generating electrical power for a consumer device, the generator comprising a main casing housing an input gear for driving an alternator via at least one intermediate gear so as to provide a step-up drive ratio in the range of 10:50; the input gear, the or each intermediate gear, and the rotor of the alternator all having their rotational axes perpendicular to the base of the main casing so that the gears and rotor rotate parallel to the plane of the base; a rectifier circuit for rectifying the alternator output; means for mounting a storage device for storing the output of the alternator, a control circuit for modifying the rectifier output to a voltage/current appropriate for the consumer device, and wherein the input gear is connected to a drive member rotatable by manual action to rotate the input gear in turn, the axis of the drive member being parallel to the respective axes of the input gear, the or each intermediate gear and the rotor with all the

Abstract: The invention concerns a handheld power generator for generating electrical power for a consumer device, the generator comprising a main casing housing an input gear for driving an alternator via at least one intermediate gear so as to provide a step-up drive ratio in the range of 10:50; the input gear, the or each intermediate gear, and the rotor of the alternator all having their rotational axes perpendicular to the base of the main casing so that the gears and rotor rotate parallel to the plane of the base; a rectifier circuit for rectifying the alternator output; means for mounting a storage device for storing the output of the alternator, a control circuit for modifying the rectifier output to a voltage/current appropriate for the consumer device, and wherein the input gear is connected to a drive member rotatable by manual action to rotate the input gear in turn, the axis of the drive member being parallel to the respective axes of the input gear, the or each intermediate gear and the rotor with all the

Abstract: A power system comprises a generator for generating electrical current, a rechargeable electrical storage device connectable to a load, and a source of non-electrical energy for driving the generator, the arrangement being such that energy output by the generator in excess of the power requirement of a load when connected to the battery is used to charge the battery.

Abstract: A generator device for providing a controlled output current to a load, the device including a panel for generating electric current from light; a capacitor connected to the output of the panel; a source of stored energy; output terminals receiving power from the capacitor for connection to a load; a gear train connected to the source of stored energy so as to be driven thereby; a generator for supplying electric current to the output terminals and to the capacitor; output terminals for connection to a load; a source of stored mechanical energy; a generator for supplying electric current to a the output terminals and the capacitor; and a gear train connected to the source of the stored mechanical energy so as to drive the generator; a control circuit for controlling supply of electrical current to the output terminals from the panel, the capacitor and said generator, the control circuit including: a transistor switch arrangement for enabling current from the generator and the panel in excess of the load to ch