Abstract: A modular louver assembly comprises a peripheral frame having a sill, a header and jambs defining a rectangular primary opening, a plurality of intermediate frame members joined to the peripheral frame and dividing the primary opening into a plurality of rectangular modular unit openings, and either louver modules or blank-off panels received in the unit openings. A sight screen mounted on the framework overlies substantially the entire primary opening.

Abstract: A method of manufacturing a fluid filter comprising: (a) providing a cone having a tip end and an open end and made of a filter material; (b) providing a support element having a plurality of concentric annular members mounted on a base and having outermost and innermost concentric annular members; (c) aligning the central axes of the cone and the support element with the tip end of the cone closest to the support element; and (d) inserting a portion of the cone into a circular area between two concentric annular members by placing a forming sleeve inside the cone and inserting the forming sleeve between the two concentric annular members, the concentric annular members being generally cylindrical and having an interior and an exterior.

Abstract: An arterial line blood filter for use in extracorporeal blood circuits during heart bypass surgery. The blood filter includes a housing having a cap portion, a base portion and a generally cylindrical wall portion. A filter element is disposed within the housing and divides the housing into an inlet chamber in flow communication with a blood inlet and an outlet chamber in flow communication with a blood outlet. The filter element may include a plurality of concentric annular pleats, the length of which may be substantially equal to the length of the wall portion, the pleats being supported by a support element. In another embodiment the inner surface of the cap defines an inwardly spiral blood flow path which slopes upward and provides an effective means of distributing blood over the filter element.

Abstract: A louver has vertical blades arranged in a frame alternately in a staggered relation from front to back in a front and a rear row. The blades in at least the front row have a web oriented substantially perpendicularly to the plane of the frame and substantially parallel to the jambs, a pair of front flanges extending in opposite directions generally laterally from a front edge of the web, and a pair of rear flanges extending in opposite directions generally laterally from a rear edge of the web. The webs subdivide the air flow volume within the frame into flow channels, each of which is partially blocked laterally by the front flanges and the rear flanges of the blades of the front row. The blades of the rear row have flanges that block the portions of the channels between the extremities of the flanges of the blades of the front row.

Abstract: A foot grille comprises a multiplicity of elongated plank members, each being of substantially uniform cross-section along its length and including a substantially planar base portion having parallel side edges and at least two supporting leg portions depending from the base portion, extending longitudinally substantially coextensively with the base portion, and being adapted to support the base portion in spaced relation above a supporting surface. Tread members are attached to the upper surface of each plank member. A snap-fit coupling joins each adjacent pair of plank members along a juncture between their adjacent side edges. Each snap-fit coupling includes first and second arm portions on one of the adjacent plank members that are resiliently deformable relative to each other and a third arm portion on the other of the adjacent plank members that is received between the first and second arm portions of said one plank member.

Abstract: A mass transfer device including a hollow fiber bundle wound on a core for radially outward flow of a first fluid. The core has an axis extending from one end to the other. The hollow fiber bundle has packing fractions which increase radially outward of the core's axis for a major portion of the bundle. Methods for making such mass transfer device.

Abstract: A pressure relief panel assembly for protecting a building against over-pressure caused by explosion. The assembly has a panel pivotally connected to a frame and held by a calibrated magnet and striker set which releases when a predetermined over-pressure occurs. A cable restraint attached to a shock absorber, or a linkage of two arms attached to a shock absorber, limits the extent to which the panel can blow open. A spring mounted on one of the arms catches the other arm when the panel has blown open, preventing the panels from reclosing and thereby preventing implosion damage to the building. Alternatively, or additionally, the panel, after opening, may be held partly open by a stop bar which pivots to prevent the panel from fully closing, to prevent implosion damage to the building after the explosion.

Abstract: A mass transfer device including a hollow fiber bundle wound on a core for radially outward flow of a first fluid. The core has an axis extending from one end to the other. The hollow fiber bundle has packing fractions which increase radially outward of the core's axis for a major portion of the bundle. Methods for making such mass transfer device.

Abstract: A radial flow hollow fiber blood oxygenator is provided. The oxygenator includes a hollow fiber bundle within an oxygenator chamber defined by a hollow core around which the hollow fibers are wound and an outer housing. A gas entry port is coupled to the interior of the fibers adjacent one end of the bundle and a gas outlet is coupled to the interior of the fibers at the opposite end of the bundle. A blood inlet to the core is provided adjacent one end of the bundle, and a blood outlet from the chamber is provided adjacent the same end of the bundle. The direction of blood flow through the chamber is generally radial and the oxygenator includes an inlet manifold and an outlet manifold.

Abstract: A drainable blade louver comprises a multiplicity of inclined blades extending horizontally between the jambs of a frame. Each blade has in cross-section a base portion sloping smoothly upwardly from a lowermost point at the front edge of the blade to an uppermost point proximate to the rear edge of the blade. The undersurface of the base portion is free of protuberances so that there are no drip points and water clinging to the undersurface of the base portion is transported along the undersurface by the air flowing through the louver. A generally C-shaped bottom trough portion adjacent the upper edge of the blade captures water blown along the undersurface of the blade and drains it to the jambs. A front drainage trough, an intermediate drainage trough, and a rear drainage trough on the top surface of each blade provide high capacity water-capturing ability. Water captured in each drainage trough is flows along each trough to respective front, intermediate and rear drainage channels in the jambs.

Abstract: An internal form with exterior surfaces corresponding to the interior surfaces of the access chamber adapted to be contacted by corrosive gasses; spraying such exterior surfaces of the form with a release agent and allowing the release agent to cure; spraying the cured release agent with a first layer of gel coat having a first color and allowing the gel coat to cure; spraying the cured first layer of gel coat with a second layer of gel coat having a second color contrasting to the first color and allowing the second layer of gel coat to cure; spraying the cured second layer of gel coat with resin and chopped strands to form a first fiberglass coating; attaching half cylinder pockets to the first fiberglass coating; spraying the first fiberglass coating and pockets with resin and chopped strands to form a second fiberglass coating; rolling the second fiberglass coating to remove air bubbles and to improve the bonding between the layers and coatings; laying up metal reinforcing rods interior of the pockets and

Abstract: A pressure relief panel assembly for protecting a building against over-pressure caused by explosion. The assembly has a panel pivotally connected to a frame and held by a calibrated magnet and striker set which releases when a predetermined over-pressure occurs. A cable restraint attached to a shock absorber, or a linkage of two arms attached to a shock absorber, limits the extent to which the panel can blow open. A spring mounted on one of the arms catches the other arm when the panel has blown open, preventing the panels from reclosing and thereby preventing implosion damage to the building. Alternatively, or additionally, the panel, after opening, may be held partly open by a stop bar which pivots to prevent the panel from fully closing, to prevent implosion damage to the building after the explosion.

Abstract: A drainable louver comprises a frame composed of a sill, a head and a pair of side members forming a rectangular opening and a multiplicity of vertically spaced-apart louver blades extending across the opening between the side members and fastened to the side members. Each of the blades has a drainage trough extending along its lower front edge and terminating at each end adjacent a corresponding side member of the frame, and each of the side frame members has a base wall portion engaging the corresponding ends of the blades throughout their lateral extent. Each side member has a front flange portion defining with a front part of the base wall portion a vertical drainage channel located laterally of the corresponding ends of the drainage troughs of the louver blades on the side of the base wall portion opposite from the blade.

Abstract: The cross sections of louver blades are located exclusively within zones defined primarily by concentric arcs configured to maintain a substantially equal spacing between the boundaries of the zones of adjacent blades throughout the width of the louver.

Abstract: A panel wall system is composed of a multiplicity of rectangular panels arranged in closely spaced relation in columns and rows such as to define vertical junctures between horizontally adjacent panels and horizontal junctures between vertically adjacent panels and affixed at their upper edges to horizontal support members by mounting clips and joined at each vertical juncture to a vertically continuous vertical track member. Each panel has a peripheral frame composed of a top member, a bottom member and a pair of side members joined at the respective corners and a facing of sheet material adhesively bonded to the frame. A seal is formed along each horizontal juncture by a horizontal gasket on the bottom frame member of the panel above the juncture that engages a flange on the top frame member of the panel below the juncture. A seal is formed at each vertical juncture by vertical gaskets on the vertical track that engage the respective side members of the panels on either side of the juncture.

Abstract: An apparatus for noninvasive determination of constituent concentrations utilizing light wave absorption measurements and methods for processing signals generated by such measurements.

Abstract: A building panel wall assembly comprises a multiplicity of pan-like rectangular panels arranged side by side and end to end in closely spaced relation. Each panel has an L-shaped top flange and a bottom flange and side flanges that extend in from the principal wall of the panel toward the building structure. A drainage gutter extends vertically along the vertical junctures between laterally adjacent panels. Either the upper or the lower flange of each panel is fastened to the building structure, and one or more clips connect the upper flange of each panel to the lower flange of the panel above it in the manner of a slip joint to allow relative movement in a plane parallel to the principal wall.

Abstract: An exterior panel wall assembly comprises a multiplicity of pan-like rectangular panels arranged in closely spaced relation side by side and end to end and joined to a horizontal retainer that is, in turn, fastened to the building structure at the horizontal junctures between side by side pairs of vertically adjacent panels. Each horizontal retainer has a drainage trough for conducting water to the end of the retainer, and a drainage channel member is located at the vertical juncture between each pair of horizontally adjacent panels.

Abstract: A panel wall assembly comprises rectangular pan-like panels mounted close together side by side and end to end. Retainers located at all junctures between the panels are fastened to the building structure, and the panels are fastened to the retainers by clips having arms that extend out through slots in the panel flanges. Troughs on each horizontal retainer drain condensate or water that leaks through seals between adjacent panels to drainage slots in the vertical retainers. Gaskets between the retainers and the panel flanges provide additional control of water flow behind the panel faces.

Abstract: A mass transfer device including a hollow fiber bundle wound on a core for radially outward flow of a first fluid. The core has an axis extending from one end to the other. The hollow fiber bundle has packing fractions which increase radially outward of the core's axis for a major portion of the bundle. Methods for making such mass transfer device.