1
Thomas Tiffany, Bruce Weyrauch, Phillip Thayer: Method and apparatus for conducting multiple chemical assays. Wells St John Roberts Gregory & Matkin, April 16, 1996: US05508200 (225 worldwide citation)

A system for high performance automated chemical analysis includes a video camera photometer with a computer-controlled interference filter wheel. A fluidics system delivers ultramicro sample and reagent volumes in the 0.05 to 5.0 microliter range to a supporting analytical media. The media is preci ...


2
Bruce Weyrauch, Norman Kelln, Thomas Tiffany, Robin Olson: Chemical analyzer. Schiapparelli Biosystems, Wells St John Roberts Gregory & Matkin, May 24, 1994: US05314825 (160 worldwide citation)

The automatic chemical analyzer includes a turntable adapted to hold a plurality of disposable cuvettes. An optical system adjacent to the turntable can perform analytical absorbance or fluorescence tests on the contents of each cuvette as they are rotated on the turntable. A sample/reagent tray is ...


3
Bruce Weyrauch, Leon Schmidt, Dan Cutler: Capacitive sensing system and wash/alignment station for a chemical analyzer. Schiapparelli Biosystems, Wells St John Roberts Gregory & Matkin, December 14, 1993: US05270210 (83 worldwide citation)

The automatic chemical analyzer includes a turntable adapted to hold a plurality of disposable cuvettes. An optical system adjacent to the turntable can perform tests on the contents of each cuvette as they are rotated on the turntable. A sample/reagent tray is rotatably mounted about an axis parall ...


4
Norman Kelln, Bruce Weyrauch, James Clark, Dan Cutler: Cuvette delivery module and turntable for a chemical analyzer. Schiapparelli Biosystems, Wells St John Roberts Gregory & Matkin, October 5, 1993: US05250440 (29 worldwide citation)

The cuvette delivery apparatus for an automatic chemical analyzer includes a magazine that stores multiple stacks of substantially rectangular cuvettes. A ram outwardly adjacent to the magazine moves an exposed cuvette from a selected stack into an awaiting compartment of a turntable. Random access ...


5
Bruce Weyrauch, Norman Kelln, Leon Schmidt, Charles Butts, James Clark, Kelsey Loughlin, Gary Richardson: Reagent bottle identification method. Schiapparelli Biosystems, Wells St John Roberts Gregory & Matkin, May 30, 1995: US05420408 (29 worldwide citation)

An automatic chemical analyzer utilizes reagents supplied in reagent bottles. The reagent bottles are labeled on their bottom surfaces with an identification label bearing a machine-readable identification code. The automatic chemical analyzer includes a reagent tray having a plurality of tray apert ...


6
Bruce Weyrauch, Norman Kelln, Leon Schmidt, Charles Butts, James Clark, Kelsey Loughlin, Gary Richardson: Reagent bottle identification and reagent monitoring system for a chemical analyzer. Schiapparelli Biosystems, Wells St John Roberts Gregory & Matkin, October 18, 1994: US05357095 (26 worldwide citation)

An automatic chemical analyzer utilizes reagents supplied in reagent bottles. The reagent bottles are labeled on their bottom surfaces with an identification label bearing a machine-readable identification code. The automatic chemical analyzer includes a reagent tray having a plurality of tray apert ...


7
Norman Kelln, Kelsey Loughlin, Bruce Weyrauch: Sample tube entry port for a chemical analyzer. Schiapparelli Biosystems, Wells St John Roberts Gregory & Matkin, December 14, 1993: US05270211 (19 worldwide citation)

A sample tube entry port for an automatic chemical analyzer supports individual draw tubes that are manually delivered to the analyzer at a sample access station. The entry port facilitates removal of samples by the pipette without exposing operating personnel to accidental contact with liquid mater ...


8
Norman Kelln, Thomas Tiffany, Robin Olson, Bruce Weyrauch: Cuvette and cuvette cartridge for a chemical analyzer. Spectrum Systems, Schiapparelli Biosystems, Wells St John Roberts Gregory & Matkin, March 8, 1994: US05292484 (14 worldwide citation)

A disposable cuvette is molded of rigid transparent plastic resin that is impervious to liquids to be handled within it. The cuvette has a rectangular cross section. Identical side walls extend between upper and lower ends of each cuvette, the upper end being open for reception of liquids and the lo ...


9
Bruce Weyrauch, James Clark, Norman Kelln, Leon Schmidt: Optical test system for a chemical analyzer. Schiapparelli Biosystems, Wells St John Roberts Gregory & Matkin, March 22, 1994: US05296911 (14 worldwide citation)

A compact optical test system for a chemical analyzer comprises a light-proof enclosure formed by two joined side compartments. One includes control surfaces for accurately positioning optical elements along desired light paths. The other includes retaining surfaces to maintain the optical elements ...


10
Travis L Sines, Leon Schmidt, Bruce Weyrauch, Michael Denney, James Kesler, Philip Malthaner: Card shuffler. Stealth CDS, Mark P Walters, Lowe Graham Jones PLLC, May 9, 2017: US09643078

The disclosed invention includes all embodiments for a mechanical shuffler comprising a generally planar base and a platform that is sized to receive a deck of unshuffled cards, the stack of unshuffled cards moves relative to a slot where the slot is sized to permit passage of a single card. With mo ...



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