Abstract: An automated order fulfillment system and mobile robot are disclosed, where the mobile robot includes a compliant drive for moving between levels of a multilevel storage structure.

Abstract: An automated order fulfillment system and mobile robot are disclosed, where the mobile robot includes a compliant drive for moving between levels of a multilevel storage structure. In one example, the compliant drive comprises a drive shaft having splines configured to provide rotational play that prevents jamming of a vertical drive gear on the end of the shaft with a rack in a vertical track.

Abstract: A capacitatively coupled plasma device has a plasma tube, an electrode positioned near the tube and means to supply a high voltage, high frequency potential such as a radio frequency to the tube to energize a flow of argon or like gas to form a plasma. A sample of material is excited by the plasma energy to emit characteristic radiation for analysis by suitable means such as spectrometric analysis or for other use and application.

Abstract: A collapsible cooking rack arrangement comprises a first rack for supporting food to be cooked, a second rack for supporting a heat source and a pair of end supports for holding the racks in mutually vertically spaced, horizontally parallel relationship with the first rack above the second rack. The end supports each include means for releasably supportingly engaging the first rack so that the latter is readily removable, and the end supports are pivotally connected to opposite ends of the second rack, so that the end supports are pivotably between collapsed positions, in which they are compactly folded with the second rack, and erected positions in which they can be engaged with the first rack. Locking member are releasably engageable with eyes on the end supports for locking the latter in the erected positions, and the racks and the end supports are made of wire. The arrangement is inexpensive to manufacture, light and compact to transport and stable when erected.

Abstract: A plasma jet device which comprises an anode electrode and a cathode electrode to provide an ionized gas column therebetween, the anode and cathode electrodes positioned such that their axes, if extended, would intersect at an angle, the ionized gas characterized by an inverted V form and a reaction zone in the region of intersection of the extended axes, and an external means to introduce a material to be observed directly into the reaction zone.