Abstract: This invention relates to a device to compact parts with an undercut out of powder material having an upper die moveable relative a lower die, at least one upper punch associated with the upper die for relative movement therebetween, at least two lower punches associated with said lower die for relative movement therebetween, the lower punches defining a lower cavity with the lower die for filling with the powder material when the dies are in an open position, the upper die contacting the lower die in a closed position for movement of one of the lower punches towards the upper die so as to transfer the powder material towards the upper die and then to compact the powder material between the upper and lower punches with said dies in the closed position so as to produce said part; said dies moveable to an eject position for ejection of the compacted part.

Abstract: A method for preparing a cylindrical separator from sheet material and for inserting the separator in the cylindrical anode space of a semi-finished cell, in which the separator is wound from a sheet material around a mandrel to have a diameter smaller than the diameter of the anode space so that the sheet is temporarily affixed to the outer surface of the mandrel by providing vacuum through the mandrel wall, and the so obtained winding is inserted axially in the cathode cylinder. When the insertion is ready, the vacuum is disrupted, and the wound structure expands and presses against the cathode wall.

Abstract: The present invention provides a system and method for visualizing internal images of an anatomical body. Internal images of the body are acquired by an ultrasound imaging transducer. The position and orientation of the ultrasound imaging transducer is tracked in a frame of reference by a spatial determinator. The position of the images in the frame of reference is determined by calibrating the ultrasound imaging transducer to produce a vector position of the images with respect to a fixed point on the transducer. This vector position can then be added to the position and orientation of the fixed point of the transducer in the frame of reference determined by the spatial determinator. The position and orientation of a medical instrument used on the patient are also tracked in the frame of reference by spatial determinators. The position and orientation of the instrument is mapped onto the position and orientation of the images.

Abstract: Attachment for an in-line skate of the kind having a plurality of linearly-aligned wheels comprising chocks which arrest rotational movement in adjacent wheels at the front of the skate and at the back of the skate. An elastomeric member biases the chocks in operative alignment and joins them so that they can be spaced from each other to receive a selected number of wheels in-between. The elastomeric member has first and second end loops which are fastened to respective ends of the associated skate.