Mark S Lewandowski

US Patent:

51491141, Sep 22, 1992

Filed:

Jun 25, 1991

Appl. No.:

7/720891

Inventors:

Mark S. Lewandowski - White Bear Lake MN
David M. Gessner - Lino Lakes MN
Robert C. Anthony - North Oaks MN

Assignee:

Smarte Carte Inc. - White Bear Lake MN

International Classification:

B62B 502

US Classification:

280 33992

Abstract:

A nestable cargo cart 10 suitable for carrying a plurality of cargo items is disclosed. The cart includes a lower frame 11 disposed about a longitudinal axis having longitudinally spaced forward and aft ends 11a and 11b respectively, wheels operatively connected to the lower frame 11, aft upright members 20a and 20b operatively connected to the lower frame 11 adjacent to the aft end 11b and rising generally vertically upward in the first vertical orientation, forward upright members 15a and 15b operatively connected to the lower frame adjacent to the forward end 11a and rising generally vertically upward in the second vertical orientation, and first and second cargo retainers 33a and 33b operatively connected to the aft upright members 20a and 20b and disposed generally inward. The forward and aft upright members 33a and 33b are angled with respect to each other, and the cart is arranged and configured to allow similar carts to be stored in a nested mananer, the forward end 11a of the first cart passing through the opening in the aft end 11b of a second cart.

US Patent:

58792945, Mar 9, 1999

Filed:

Jun 28, 1996

Appl. No.:

8/672625

Inventors:

David L. Anderson - Bloomington MN
Galen D. Houk - Hutchinson MN
Mark S. Lewandowski - Hutchinson MN
Dean E. Myers - Stewert MN
Joseph P. Ortner - Hutchinson MN

Assignee:

Hutchinson Technology Inc. - Hutchinson MN

International Classification:

A61B 500

US Classification:

600310

Abstract:

A measurement system and method for measuring a relative concentration of a first form of a chromophore having a first form and a second form. The method comprises irradiating a tissue sample with light at a plurality of wavelengths within a wavelength range within which the first and second forms of the chromophore provide an overlapping spectral response. A detector is provided that detects spectral data emitted from the tissue. Furthermore, the method comprises determining a first and a second 2d derivative spectrum value, at first and second wavelengths, respectively, within said wavelength range at which the first 2d derivative spectrum value varies with the relative concentration of the first form of the chromophore. A scaled, 2d derivative spectrum value is derived from the first and second 2d derivative spectrum values. A memory stores a correlation which provides the relative chromophore concentration as a function of the scaled, 2d derivative spectrum value.

US Patent:

D3603920, Jul 18, 1995

Filed:

Apr 28, 1994

Appl. No.:

D/021571

Inventors:

Mark S. Lewandowski - White Bear Lake MN

Assignee:

Smarte Carte, Inc. - St. Paul MN

US Classification:

D12129

US Patent:

D3311350, Nov 17, 1992

Filed:

Jun 24, 1991

Appl. No.:

7/721204

Inventors:

Mark S. Lewandowski - White Bear Lake MN
David M. Gessner - Lino Lakes MN
Robert C. Anthony - North Oaks MN

Assignee:

Smarte Carte, Inc. - White Bear Lake MN

US Classification:

D34 18

US Patent:

D3603938, Jul 18, 1995

Filed:

Apr 28, 1994

Appl. No.:

D/021572

Inventors:

Mark S. Lewandowski - White Bear Lake MN

Assignee:

Smarte Carte, Inc. - St. Paul MN

US Classification:

D12129