David R Lyons

US Patent:

20220288543, Sep 15, 2022

Filed:

Jul 10, 2020

Appl. No.:

17/625027

Inventors:

- Ottignies-Louvain-la-Neuve, BE
Guillaume CRINIERE - Braine-l'Alleud, BE
David LYONS - Fort Worth TX, US
Deborah BALLARD - Fort Worth TX, US
Narahari N. KRAMADHATI - La Habra CA, US

International Classification:

B01F 25/21
B01F 25/10
B01F 25/51
B01F 23/50

Abstract:

The present invention is related to an installation and to a method for recirculating and mixing a fluid which is preferably a shear-thinning fluid. The installation comprises a tank, a pump, a piping assembly connected to the pump and comprising an injection piping for injecting said fluid into the tank and a return piping coupled to the injection piping for pumping the said fluid from the tank to the injection piping, wherein the piping assembly and the tank form a flow recirculation path in which fluid is homogenized by recirculation of the fluid upon action of the said pump, the injection piping being designed such as to reinject the fluid in at least two peripheral bottom locations with an horizontal and/or inclined orientation such as to create a swirl movement in the tank and to reinject simultaneously said fluid upwardly through a central location in a zone comprised between the central axis of the tank and the half radius of the tank such as to create a jet of fluid having a main vertical component.

US Patent:

20200200385, Jun 25, 2020

Filed:

Feb 12, 2020

Appl. No.:

16/788788

Inventors:

- Ottignies-Louvain-La-Neuve, BE
Johan Heiszwolf - Overijse, BE
Joel Letouzey - Roffigny, FR
David Lyons - Fort Worth TX, US
Chad Timothy Metz - Watauga TX, US
Howard Braxton Fitzgerald - Ball Ground GA, US
Gregory M. Filippelli - Dillsburg PA, US

International Classification:

F23J 7/00
F23J 15/00
B65G 53/52

Abstract:

Process and device for pneumatically conveying a powdery material comprising the steps of

US Patent:

20200016527, Jan 16, 2020

Filed:

Jul 11, 2018

Appl. No.:

16/032152

Inventors:

- Ottignies-Louvain-la-Neuve, BE
David Lyons - Fort Worth TX, US
Ian Saratovsky - Highland Park IL, US

Assignee:

S. A. Lhoist Recherche et Developpement - Ottignies-Louvain-la-Neuve

International Classification:

B01D 53/10
B03C 3/017
B01J 23/02

Abstract:

A powdery calcium-magnesium compound used as a sorbent composition in flue gas treatment, compatible with electrostatic precipitators. The calcium magnesium compound is doped with calcium nitrate or nitric acid to reduce the electrical resistivity of the particles, increasing their collection efficiency.

US Patent:

20180149358, May 31, 2018

Filed:

Nov 28, 2016

Appl. No.:

15/361618

Inventors:

- Ottignies-Louvain-La-Neuve, BE
Johan Heiszwolf - Huldenberg, BE
Joel Letouzey - Roffigny, FR
David Lyons - Fort Worth TX, US

International Classification:

F23J 15/02
B65G 53/06
B65G 53/58

Abstract:

Process and device for pneumatically conveying a powdery material comprising the steps of