Abstract: A fluid spraying system includes a displacement pump configured to mount to a drive housing. A reciprocating drive is connectable to a pump rod of the displacement pump and includes a connecting rod and a drive link that receives a head of the pump rod. A tightening ring that includes threading is configured to rotate about a cylinder of the pump and shift axially along the cylinder and engage with a bottom side of the drive housing to secure the displacement pump to the drive housing.

Abstract: A displacement pump is configured to mount to a drive housing. A reciprocating drive is connectable to a pump rod of the displacement pump and includes a connecting rod and a drive link that receives a head of the pump rod. A flange projects from a pump body of the pump and a ring projects from the pump body of the pump. A portion of the drive housing is received in a gap between the flange and the ring.

Abstract: A floor tile is disclosed that includes a metal frame, a backing plate, and a plurality of tiles assembled to the metal frame and the backing plate. The metal frame defines a plurality of openings, and has a thickness T. The openings are separated by a plurality of connected strips that are coated with an anti-slip coating. The backing plate is attached to a bottom side of the metal frame. The plurality of tiles are each assembled into one of the plurality of openings with the backing plate supporting the tiles. The tiles have a height H that is less than T and have a top surface that is recessed below the anti-slip coating on the connected strips.

Abstract: A floor tile is disclosed that comprises a plate having an anti-slip metal coating. The metal plate has an upper surface, a bottom surface and a plurality of edges provided on all sides of the metal plate that extend between the upper surface and the bottom surface. The anti-slip coating is applied to a central portion of the upper surface, wherein the anti-slip coating is not applied to the upper surface between the central portion and the plurality of edges. At least one recess is formed in the bottom surface that is adapted to receive a portion of an adhesive applied between the bottom surface and a floor. A method is also disclosed for making the anti-slip floor tile, wherein a metal plate is masked at a border provided around the edges of the plate and molten metal is sprayed on a central portion but not on the border.

Abstract: A method is disclosed for making a floor tile having ceramic tiles formed in situ in openings or recesses in the plate. A metal frame is embossed to form recesses in one embodiment. In another embodiment, openings are punched in the plate and a backing plate is attached to a bottom surface of the plate. A ceramic composition is poured into the plurality of openings up to a level that is below the upper surface of the metal frame and is cured to form a ceramic tile in situ in each of the plurality of openings. Surface features may be provided in the recesses or openings such as projections with a head portion that are embedded in the ceramic composition after curing.

Abstract: A floor tile is disclosed that includes a metal framework that supports a plurality of tiles. The metal framework defines recesses having a depth D that are separated by ridges. The ridges are coated with an anti-slip coating. The tiles are each assembled into one of the recesses. The tiles have a height H that is less than D and a top surface that is recessed below the anti-slip coating on the ridges. Methods for making and installing the floor tile are disclosed that includes the steps of applying an anti-slip coating to an upper surface of a metal framework. Assembling a plurality of tiles into the recesses. An adhesive is applied between the tiles and the recesses to secure the tiles with the top surface of the tiles being recessed relative to the ridges. The floor tile is installed on a floor with an adhesive.

Abstract: Sol-gel derived monolithic silica columns containing entrapped dihydrofolate reductase were used for frontal affinity chromatography of small molecule mixtures. The output from the column combined with a second stream containing the matrix molecule (HCCA) and was directly deposited onto a conventional MALDI plate that moved relative to the column via a computer controlled x-y stage, creating a semi-permanent record of the FAC run. The use of MALDI MS allowed for a decoupling of the FAC and MS methods allowing significantly higher ionic strength buffers to be used for FAC studies, which allowed for better retention of protein activity over multiple runs.

Abstract: A method of detecting contraband substances in freight cargo containers in which the container is agitated to disturb particulates therein, and air containing such particulates is then sampled and the particulates collected. The collected particulates include naturally occurring particulates which have absorbed vapors of the contraband substance during the entire time that the container has been closed, and also include particulates of the contraband substance itself. The collected particulates are then heated to a temperature above 160.degree. C. to drive off vapors indicative of the contraband substance and the vapors are analyzed in a mass analyzer.

Abstract: A method of detecting contraband substances in freight cargo containers in which the container is agitated to disturb particulates therein, and air containing such particulates is then sampled and the particulates collected. The collected particulates include naturally occurring particulates which have absorbed vapors of the contraband substance during the entire time that the container has been closed, and also include particulates of the contraband substance itself. The collected particulates are heated to drive off vapors indicative of the contraband substance and the vapors are analyzed in a mass analyzer.