John Jack Mccaffrey

US Patent:

20140002662, Jan 2, 2014

Filed:

Mar 15, 2013

Appl. No.:

13/841721

Inventors:

E. Neil Lewis - Brookeville MD, US
John McCaffrey - Columbia MD, US
Kenneth S. Haber - Frederick MD, US
Peter Bennett - Columbia MD, US
Gerald Sando - Savage MD, US
Tomasz Sadowski - Warsaw, PL

International Classification:

G01N 15/06

US Classification:

348159

Abstract:

In one general aspect, a particle characterization method is disclosed that includes suspending particles in a fluid, causing them to flow past a two-dimensional array detector, and illuminating them as they do so. The method also includes acquiring images of the particles as they flow past the two-dimensional array detector in the fluid, and applying a particle characterization function to the images for at least some of the suspended particles.

US Patent:

20170045438, Feb 16, 2017

Filed:

Apr 17, 2015

Appl. No.:

15/305327

Inventors:

- Worcestershire, GB
John McCaffrey - Columbia MD, US
Peter Bennet - Columbia MD, US
Vishal Patil - Columbia MD, US

International Classification:

G01N 15/14
G01N 21/53
G01N 15/08

Abstract:

A particle characterization apparatus and corresponding method is disclosed. The apparatus comprises a sample cell (). The sample cell includes: an input opening () for receiving a fluid that carries particles flowing along a flow axis, a central acquisition channel () hydraulically responsive to the input opening () for receiving a first subset of the fluid, a pair of lateral bypass channels () hydraulically responsive to the input opening () and disposed on either side of the central acquisition channel () for receiving second and third subsets of the fluid, a window () in the central acquisition channel () for illuminating the first subset of the fluid in the central acquisition channel (),an illumination source () positioned to illuminate the fluid in the central acquisition channel () through the window (), and a detector () positioned to receive light from the fluid in the central acquisition channel () after it has interacted with the fluid.

US Patent:

20160356696, Dec 8, 2016

Filed:

Feb 20, 2015

Appl. No.:

15/120513

Inventors:

- Malvern Worcestershire, GB
John MCCAFFREY - Columbia MD, US
Vishal PATIL - Columbia MD, US
Kenneth HABER - Brookeville MD, US

International Classification:

G01N 15/14
B07C 5/342

Abstract:

The invention relates to methods and apparatus for detecting properties of heterogeneous samples, including detecting properties of particles or fluid droplets in industrial processes. Embodiments disclosed include a particle characterization method, comprising: providing a fluid containing suspended particles; causing at least a first subset of the suspended particles to flow past a first two-dimensional array detector (); illuminating the first subset of suspended particles as they flow past the first two-dimensional array detector () in the fluid; acquiring a plurality of images of the first subset of particles as they flow past the first two-dimensional array detector () in the fluid; and automatically counting the particles in the images.

US Patent:

20150362421, Dec 17, 2015

Filed:

Jun 21, 2013

Appl. No.:

14/408833

Inventors:

- Worcestershire, GB
John MCCAFFREY - Columbia MD, US
Ken HABER - Frederick MD, US
Peter BENNETT - Columbia MD, US
Gerald SANDO - Columbia MD, US
Tomasz SADOWSKI - Warszawa, PL

Assignee:

Malvern Instruments Limited - Worcestershire

International Classification:

G01N 15/14

Abstract:

The disclosure relates to methods and apparatus for detecting properties of heterogeneous samples, including detecting properties of particles or fluid droplets in industrial processes. Embodiments disclosed include a particle characterization method, comprising: suspending particles in a fluid; causing the suspended particles to flow past a two-dimensional array detector; illuminating the suspended particles as they flow past the two-dimensional array detector in the fluid; acquiring a plurality of images of the particles as they flow past the two-dimensional array detector in the fluid; and applying a particle characterization function to results of steps of acquiring a plurality of images for at least some of the suspended particles.

US Patent:

20150338334, Nov 26, 2015

Filed:

Jun 21, 2013

Appl. No.:

14/410513

Inventors:

- Worcestershire, GB
John MCCAFFREY - Columbia MD, US
Ken HABER - Frederick MD, US
Peter BENNETT - Columbia MD, US
Gerald SANDO - Columbia MD, US
Tomasz SADOWSKI - Warszawa, PL

International Classification:

G01N 15/06
G06K 9/20
G06K 9/00

Abstract:

The disclosure relates to methods and device for detecting properties of heterogeneous samples, including detecting properties of particles or fluid droplets in industrial processes. A probe may be inserted into a first of multiple heterogeneous fluid samples. A portion of the first sample may be drawn into the probe and past a two-dimensional array detector. The portion of the first sample may be illuminated as it is drawn past the array detector and an image of the portion of the first sample may be acquired. The probe may be inserted into a second of multiple heterogeneous fluid samples. A portion of the second sample may be drawn into the probe and past a two-dimensional array detector. The portion of the second sample may be illuminated as it is drawn past the array detector and an image of the portion of the second sample may be acquired.