摘要:
A bed is provided having a head end, a foot end, and sides. The bed includes a frame and a deck carried by the frame. The deck includes an upper deck portion and a central, longitudinal recess in the upper deck portion. The recess is defined by a lower deck portion and walls connecting the lower and the upper deck portions. The bed also includes a mattress including a planar, upwardly-facing patient surface, side portions resting on the side deck portions, and a central projection extending downwardly into the recess. A first longitudinal deck section is coupled to the deck to pivot about a pivot axis above the lower deck portion between a generally horizontal position and a tilted position.
摘要:
The present invention provides a method of treating wastewater containing particulate matter and free oil, which method comprises removing free oil from the wastewater, passing the wastewater through a first filtration medium having an effective pore rating of about 200 .mu.m or less, subjecting the wastewater to dynamic filtration utilizing a second filtration medium having an effective pore rating of about 5 .mu.m or less, and contacting the wastewater with an adsorbent bed to form a purified water stream. The present invention also provides an apparatus which can be used to carry out the present inventive method.
摘要:
A filter includes a pleated filter element having longitudinally extending pleats and a wrap member wrapped around the filter element. The wrap member is joined to the peaks of the pleats and has openings for increasing the dirt capacity of the filter. The filter element may be a composite of a filter layer, upstream and downstream support and drainage layers, a cushioning layer between the upstream support and drainage layer and the filter layer, and polymeric beads on the downstream side of the downstream support and drainage layer. An extruded polymeric mesh may comprise one or both of the upstream and downstream support and drainage layers.
摘要:
A filter for filtering a highly viscous material comprises a filter element including a glass fiber filter medium, preferably resin-bonded, having upstream and downstream sides and a polymeric mesh situated on at least one of the upstream and downstream sides of the filter medium, and preferably on both sides of the filer medium. A non-woven sheet, such as a cellulose paper sheet, may be disposed between the downstream side of the filter medium and the downstream polymeric mesh. The filter element is typically cylindrical and longitudinally pleated to maximize the filtration area in as small a volume as possible. Also provided is a method of filtering a highly viscous material, particularly magnetic coating mixes.
摘要:
A filter includes a pleated filter element having longitudinally extending pleats and a wrap member wrapped around the filter element. The wrap member is joined to the peaks of the pleats and has openings for increasing the dirt capacity of the filter. The filter element may be a composite of a filter layer, upstream and downstream support and drainage layers, a cushioning layer between the upstream support and drainage layer and the filter layer, and polymeric beads on the downstream side of the downstream support and drainage layer. An extruded polymeric mesh may comprise one or both of the upstream and downstream support and drainage layers.
摘要:
A container is adapted to be mounted on a paintball weapon to feed paintballs into the firing chamber of such weapon under the influence of gravity. The container includes a hollow housing in which a monolithic, one-piece helical ramp is located. The paintballs are fed onto the helical ramp and move under the influence of gravity from an inlet section to an outlet section for feeding the paintballs to the weapon. Elements located in the helical path defined by the helical ramp prevent the paintballs from moving backwards.
摘要:
The disclosure describes a filter cartridge for removing particulates from a destructive fluid such as a hot acid or solvent. The filter cartridge comprises a cylindrical filter arrangement having a generally annular cross section and including a cylindrical, microporous fluoropolymeric filter for removing the particulate contaminants as the corrosive fluid flows through the filter. The filter arrangement also includes a cylindrical fluoropolymeric structure coaxially disposed adjacent the filter for supporting the filter. The filter cartridge further includes first and second impervious fluoropolymeric end caps concentrically disposed adjacent the first and second ends, respectively, of the filter arrangement. The first end cap includes a central aperture communicating with the center of the filter arrangement.
摘要:
A semiconductor inspection apparatus identifies regions of a reticle or semiconductor wafer appropriate for cell-to-cell inspection by analyzing a semiconductor design database. Appropriate regions can be identified in a region map for use by offline inspection tools.
摘要:
A semiconductor inspection apparatus performs a hybrid inspection process including cell-to-cell inspection, die-to-die inspection and die-to-golden or die-to-database inspection. The apparatus creates a golden image of a reticle complimentary to portions of the reticle that can be inspected by cell-to-cell inspection or die-to-die inspection. Alternatively, the apparatus creates a reduced database complimentary to portions of the reticle that can be inspected by cell-to-cell inspection or die-to-die inspection.
摘要:
A semiconductor inspection apparatus identifies regions of a reticle or semiconductor wafer appropriate for cell-to-cell inspection by analyzing a semiconductor design database. Appropriate regions can be identified in a region map for use by offline inspection tools.