Paul M Bjorndal

US Patent:

20040187869, Sep 30, 2004

Filed:

Jan 16, 2004

Appl. No.:

10/759859

Inventors:

Paul Bjorndal - Wayne NJ, US
Jun Chen - Warren NJ, US
David Kenyon - Morristown NJ, US
Barry Lutsky - Hillsborough NJ, US
Keith Nolop - Redwood City CA, US
John Stimson - New Providence NJ, US

Assignee:

SCHERING CORPORATION

International Classification:

A61M015/00
A61M016/00

US Classification:

128/203150, 128/200230, 128/203120

Abstract:

A training device for a dry powder inhaler, includes a dry powder inhaler simulator including a housing having a bore extending therethrough, a mouthpiece connected with the housing and being in open communication with the bore; a control circuit for measuring pressure drop at the opening and displaying a single value corresponding to both inhalation rapidity and inhalation flow rate peak, the control circuit including a pressure transducer below the opening for producing an output signal corresponding to the pressure drop, an A/D converter for converting the output signal to a digitized signal; a display formed by a plurality of lighting segments, for providing an indication corresponding to both inhalation rapidity and inhalation flow rate peak, and a microprocessor connected with the display for controlling the display in response to the output signal from the pressure transducer and elapsed time.

US Patent:

46766502, Jun 30, 1987

Filed:

Nov 18, 1983

Appl. No.:

6/553012

Inventors:

Paul M. Bjorndal - Clifton NJ
Julius Z. Knapp - Somerset NJ
John C. Zeiss - Glen Ridge NJ

Assignee:

Schering-Plough Corporation - Kenilworth NJ

International Classification:

G01N 2190
H04N 718

US Classification:

356427

Abstract:

A method and apparatus for lighting a container which is to be inspected for particulate contamination comprising a first lighting means consisting of two angularly displaced light beams which create an angular shadow zone, a second lighting means of significantly lower intensity than said first lighting means and positioned intermediate the two light beams and a viewing means positioned in the shadow zone.