Norman G Kelln from 269 Eagle Dr, Chewelah, WA 99109, age 91

Sample Tube Entry Port For A Chemical Analyzer
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US Patent:

52702111, Dec 14, 1993
Filed:

Jul 16, 1992
Appl. No.:

7/916222
Inventors:

Norman Kelln - Spokane WA
Kelsey Loughlin - Spokane WA
Bruce Weyrauch - Newman Lake WA
Assignee:

Schiapparelli Biosystems, Inc. - Fairfield NJ
International Classification:

G01N 3500
G01N 2100
G01N 100
US Classification:

436 43
Abstract:

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 materials in the draw tube. To accommodate draw tubes of differing heights, the apparatus includes a stripper that is selectively locked onto an elevationally movable ram carrying a receptacle for receiving a draw tube. A spring-biased tube clamp urges each draw tube against guides within the receptacle to center draw tubes of differing diameters. During operation of the apparatus, the receptacle is first lowered to a predetermined elevation, then raised to an intermediate elevation at which a draw tube closure is properly positioned for placement of the stripper immediately adjacent to its upper surface. The stripper is locked relative to the ram in this elevational relationship, which is maintained as the closure is impaled on the puncture tube and/or the pipette that accesses the contents of the draw tube.

Cuvette Delivery Module And Turntable For A Chemical Analyzer
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US Patent:

52504409, Oct 5, 1993
Filed:

Jul 16, 1992
Appl. No.:

7/916179
Inventors:

Norman Kelln - Spokane WA
Bruce Weyrauch - Newman Lake WA
James Clark - Spokane WA
Dan Cutler - Spokane WA
Assignee:

Schiapparelli Biosystems, Inc. - Fairfield NJ
International Classification:

G01N 3502
G01N 2100
US Classification:

436 48
Abstract:

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 is provided to all stacks within the magazine. A mechanical follower monitors the selected stack and provides stack information for updating of cuvette inventory.

Chemical Analyzer
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US Patent:

53148258, May 24, 1994
Filed:

Jul 16, 1992
Appl. No.:

7/916466
Inventors:

Bruce Weyrauch - Newman Lake WA
Norman Kelln - Spokane WA
Thomas Tiffany - Spokane WA
Robin Olson - Veradale WA
Assignee:

Schiapparelli Biosystems, Inc. - Fairfield NJ
International Classification:

G01N 3500
US Classification:

436 43
Abstract:

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 rotatably mounted about an axis parallel to the turntable axis. A common probe arm pivoted about a third parallel axis mounts a pipette that can be moved along an arcuate path intersecting a cuvette access station on the turntable and at least one container access station on the sample/reagent tray for transferring liquids as required by specific test procedures. A sample tube entry port is provided to support individual draw tubes that are manually delivered to the analyzer at a sample access station and to facilitate removal of samples by the pipette without exposing operating personnel to accidental contact with liquid materials in the draw tube.

Liquid Transfer Module For A Chemical Analyzer
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US Patent:

53343492, Aug 2, 1994
Filed:

Jul 16, 1992
Appl. No.:

7/916208
Inventors:

Norman Kelln - Spokane WA
Kelsey Loughlin - Spokane WA
Assignee:

Schiapparelli Biosystems, Inc. - Fairfield NJ
International Classification:

G01N 2100
US Classification:

422 63
Abstract:

A liquid transfer module for a chemical analyzer is adequate to effect liquid transfers between multiple stations arranged in a common arc about a vertical axis on a supporting instrument framework. A rigid radial probe arm supporting a vertical pipette is fixed to a tubular shaft supported on the framework for both rotational and elevational motion relative to the vertical axis. It is surrounded by a powered pulley that imparts angular movement to the shaft. It is elevationally carried by a non-rotating bearing assembly arranged coaxially about the axis on a nut threadably engaged by a powered lead screw extending within the confines of the shaft. Both the elevational and angular positions of the shaft are electronically monitored.

Cuvette For A Chemical Analyzer
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US Patent:

D3536769, Dec 20, 1994
Filed:

Jul 16, 1992
Appl. No.:

7/916224
Inventors:

Norman Kelln - Spokane WA
Thomas Tiffany - Spokane WA
Robin Olson - Veradale WA
Bruce Weyrauch - Newman Lake WA
Assignee:

Spectrum Systems, Inc. - Spokane WA
Schiaparelli Biosystems, Inc. - Fairfield NJ
US Classification:

D24224

Optical Test System For A Chemical Analyzer
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US Patent:

52969118, Mar 22, 1994
Filed:

Jul 16, 1992
Appl. No.:

7/916193
Inventors:

Bruce Weyrauch - Newman Lake WA
James Clark - Spokane WA
Norman Kelln - Spokane WA
Leon Schmidt - Spokane WA
Assignee:

Schiapparelli Biosystems, Inc. - Fairfield NJ
International Classification:

G01N 2100
G01N 2125
G01J 328
US Classification:

356 73
Abstract:

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 in a centered position across the parting line of the two compartments. A single light source is used for both absorbance and fluorescence polarization measurement purposes.

Cuvette Handling
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US Patent:

47388250, Apr 19, 1988
Filed:

Feb 27, 1985
Appl. No.:

6/706073
Inventors:

Norman G. Kelln - Spokane WA
Larry A. Nelson - Spokane WA
Thomas O. Tiffany - Spokane WA
Assignee:

Fisher Scientific Company - Pittsburgh PA
International Classification:

G01N 3504
G01N 2107
US Classification:

422 72
Abstract:

An analysis system of the concurrent type has a multicuvette unit supply station, a loading station, an analysis station, and transport mechanism for transporting cuvette units in correlated orientation between the several stations. Each cuvette unit includes mechanical interlock structure that cooperates with orientation structure at each of the several stations and with orientation structure carried by the transport mechanism so that continuity of cuvette orientation information is maintained throughout loading and concurrent analysis of the several samples in the cuvette unit.