Abstract: Disclosed are embodiments of battery stacker machines, including z-fold stacker machines, configured to provide a rolling transfer of a battery layer so as to reduce scrubbing. In some embodiments, the layer is flexed onto an arcuate surface using a vacuum or other force. The arcuate surface is then rotated to release the layer at a desired transfer location. For instance, the desired transfer location may be on top of a stack or onto another arcuate gripper surface.

Abstract: A therapy system includes a patient support apparatus and a pneumatic therapy device that is coupleable to the patient support apparatus. The therapy device may receive power and air flow from the patient support apparatus.

Abstract: A device which can be used for filtering samples is described. The device is comprised of a plurality of filter wells, each having a wide region and a narrow region. The device is fitted with a filter element and then filled with a gel filtration matrix which is selected so that molecules of a particular molecular size will diffuse into the matrix. The device is centrifuged to remove water from the interstitial regions of the gel filtration matrix, and a sample is then added to the device containing the dried gel filtration matrix. The device is again centrifuged, causing smaller molecules to diffuse into the matrix and allowing larger molecules to exit the device, wherein they are collected and analyzed. The device is capable of filtering sample sizes as low as 1 &mgr;L and can be used in a variety of existing laboratory equipment, including bench-top centrifuges and microcentrifuges. A process for using the device is also disclosed.

Abstract: Nonanchorage-dependent cells are immobilized for cell culturing or the production of cell products, by contracting an aqueous suspension of the cells with a floc formed by the combination of positively and negatively charged ion exchange resins having particle sizes ranging from about 0.01 to about 1.5 microns. The flocs may be formed either prior to contract with the cells or may be formed in situ in the cell suspension upon separate addition of the resins, preferably by first adding the positively charged resin followed by the negatively charged resin. The resin floc operates as a microcarrier for the cells.