Richard D Balazy

US Patent:

6422256, Jul 23, 2002

Filed:

Nov 27, 2000

Appl. No.:

09/722937

Inventors:

Richard D. Balazy - Terryville CT
Cathy L. Cowan - Canton CT
Mark R. Eisenmann - Burlington CT
Kenneth E. Frink - Prospect CT
Edward Kulha - Canton Center CT

Assignee:

Mott Metallurgical Corporation - Farmington CT

International Classification:

G05D 706

US Classification:

137 12, 1374875

Abstract:

A method and system for controlling the rate of fluid flow. A flow restrictor having known pressure drop and flow rate characteristics provided in a passage through which the fluid, preferably a gas, flows. An upstream pressure sensor determines the pressure of fluid in the flow passage upstream of the flow restrictor. A downstream pressure sensor determines the pressure of fluid in the flow passage downstream of said flow restrictor. A pressure regulator adjusts the pressure of fluid upstream or downstream of the flow restrictor based on the pressure drop across the flow restrictor so that the actual pressure drop across the flow restrictor closely corresponds to the pressure drop associated with a desired rate of fluid flow.

US Patent:

6802333, Oct 12, 2004

Filed:

Nov 1, 2001

Appl. No.:

10/002556

Inventors:

Richard D. Balazy - Terryville CT
Cathy L. Cowan - Canton CT
Mark R. Eisenmann - Burlington CT
Kenneth E. Frink - Prospect CT
Edward Kulha - Canton Center CT

Assignee:

Mott Metallurgical Corporation - Farmington CT

International Classification:

G05D 706

US Classification:

137110, 137486, 1374875

Abstract:

A method and system for controlling the rate of fluid flow. A flow restrictor having known pressure drop and flow rate characteristics provided in a passage through which the fluid, preferably a gas, flows. An upstream pressure sensor determines the pressure of fluid in the flow passage upstream of the flow restrictor. A downstream pressure sensor determines the pressure of fluid in the flow passage downstream of said flow restrictor. A pressure regulator adjusts the pressure of fluid upstream or downstream of the flow restrictor based on the pressure drop across the flow restrictor so that the actual pressure drop across the flow restrictor closely corresponds to the pressure drop associated with a desired rate of fluid flow.

US Patent:

8097071, Jan 17, 2012

Filed:

Oct 22, 2008

Appl. No.:

12/256134

Inventors:

Derek Burgess - Plainville CT, US
Wayne F. White - Granby CT, US
Alfred M. Romano - West Hartland CT, US
Todd W. Pflugbeil - Bristol CT, US
Richard D. Balazy - Terryville CT, US
Kenneth L. Rubow - Avon CT, US
John E. Rosenberger - Plantsville CT, US

Assignee:

Mott Corporation - Farmington CT

International Classification:

B01D 46/00

US Classification:

95273, 55523

Abstract:

Sintered fiber filters are provided that can afford high particle capture efficiency and/or low pressure drop during operation, and are useful in applications such as semiconductor processing. The shape of at least a portion of the individual fibers (e. g. , metal fibers) used to make the filter have a three-dimensional aspect, which allows for a low packing density and high porosity filtration media. Certain filters have a cylindrical or tube-like shape with tapered ends of higher density. Methods of making such filters, for example, using axial pressing, are also described.

US Patent:

20020179150, Dec 5, 2002

Filed:

Jul 15, 2002

Appl. No.:

10/196071

Inventors:

Richard Balazy - Terryville CT, US
Cathy Cowan - Canton CT, US
Mark Eisenmann - Burlington CT, US
Kenneth Frink - Prospect CT, US
Edward Kulha - Canton Center CT, US

Assignee:

Mott Metallurgical Corporation - Farmington CT

International Classification:

F16K031/12

US Classification:

137/487500

Abstract:

A method and system for controlling the rate of fluid flow. A flow restrictor having known pressure drop and flow rate characteristics provided in a passage through which the fluid, preferably a gas, flows. An upstream pressure sensor determines the pressure of fluid in the flow passage upstream of the flow restrictor. A downstream pressure sensor determines the pressure of fluid in the flow passage downstream of said flow restrictor. A pressure regulator adjusts the pressure of fluid upstream or downstream of the flow restrictor based on the pressure drop across the flow restrictor so that the actual pressure drop across the flow restrictor closely corresponds to the pressure drop associated with a desired rate of fluid flow.

US Patent:

20120285877, Nov 15, 2012

Filed:

Jan 12, 2012

Appl. No.:

13/349401

Inventors:

Derek Burgess - Plainville CT, US
Wayne F. White - Granby CT, US
Alfred M. Romano - West Hartland CT, US
Todd W. Pflugbeil - Bristol CT, US
Richard D. Balazy - Terryville CT, US
Kenneth L. Rubow - Avon CT, US
John E. Rosenberger - Plantsville CT, US

Assignee:

Mott Corporation - Farmington CT

International Classification:

B01D 24/00
C04B 35/64
B01D 35/30

US Classification:

210232, 210496, 264628

Abstract:

Sintered fiber filters are provided that can afford high particle capture efficiency and/or low pressure drop during operation, and are useful in applications such as semiconductor processing. The shape of at least a portion of the individual fibers (e.g., metal fibers) used to make the filter have a three-dimensional aspect, which allows for a low packing density and high porosity filtration media. Certain filters have a cylindrical or tube-like shape with tapered ends of higher density. Methods of making such filters, for example, using axial pressing, are also described.

US Patent:

61521620, Nov 28, 2000

Filed:

Oct 8, 1998

Appl. No.:

9/168697

Inventors:

Richard D. Balazy - Terryville CT
Cathy L. Cowan - Canton CT
Mark R. Eisenmann - Burlington CT
Kenneth E. Frink - Prospect CT
Edward Kulha - Canton Center CT

Assignee:

Mott Metallurgical Corporation - Farmington CT

International Classification:

G05D 706

US Classification:

137110

Abstract:

A method and system for controlling the rate of fluid flow. A flow restrictor having known pressure drop and flow rate characteristics provided in a passage through which the fluid, preferably a gas, flows. An upstream pressure sensor determines the pressure of fluid in the flow passage upstream of the flow restrictor. A downstream pressure sensor determines the pressure of fluid in the flow passage downstream of said flow restrictor. A pressure regulator adjusts the pressure of fluid upstream or downstream of the flow restrictor based on the pressure drop across the flow restrictor so that the actual pressure drop across the flow restrictor closely corresponds to the pressure drop associated with a desired rate of fluid flow.

US Patent:

59170662, Jun 29, 1999

Filed:

Jul 16, 1997

Appl. No.:

8/895605

Inventors:

Mark R. Eisenmann - Burlington CT
Richard D. Balazy - Terryville CT

Assignee:

Mott Metallurgical Corporation - Farmington CT

International Classification:

B01D 4624

US Classification:

55502

Abstract:

An inline ultra-high efficiency filter comprising a housing having a chamber extending the length thereof, an inlet and an outlet providing flow passages into and from the chamber. Seated in the chamber is a porous sintered metal filter element having a tubular body open at its end adjacent the inlet and an end wall at its other end adjacent the outlet, and the filter element provides an internal flow passage extending therein from the inlet to the end wall. A sealing weldment provides an air tight seal between the periphery of the filter element and the housing adjacent the inlet. The filter element is spaced from the wall of the chamber to provide a plenum space thereabout, and a gas stream entering the inlet end of the filter passes into the internal flow passage of the filter element and outwardly of the body of the filter element into the plenum space and thence outwardly of the outlet end of the filter. This filter achieves a 9LRV efficiency determined for the most penetrating particle size at the rated flow.

US Patent:

20140134036, May 15, 2014

Filed:

Jan 22, 2014

Appl. No.:

14/161001

Inventors:

- Farmington CT, US
Wayne F. WHITE - Granby CT, US
Alfred M. ROMANO - West Hartland CT, US
Todd W. PFLUGBEIL - Bristol CT, US
Richard D. BALAZY - Terryville CT, US
Kenneth L. RUBOW - Avon CT, US
John E. ROSENBERGER - Plantsville CT, US

Assignee:

MOTT CORPORATION - Farmington CT

International Classification:

B22F 7/00
B01D 39/20

US Classification:

419 2

Abstract:

Sintered fiber filters are provided that can afford high particle capture efficiency and/or low pressure drop during operation, and are useful in applications such as semiconductor processing. The shape of at least a portion of the individual fibers (e.g., metal fibers) used to make the filter have a three-dimensional aspect, which allows for a low packing density and high porosity filtration media. Certain filters have a cylindrical or tube-like shape with tapered ends of higher density. Methods of making such filters, for example, using axial pressing, are also described.