David Jason Fair

US Patent:

6933416, Aug 23, 2005

Filed:

Apr 11, 2003

Appl. No.:

10/412180

Inventors:

Chen-Chou Chiang - Wexford PA, US
David L. Fair - Imperial PA, US

Assignee:

Calgon Carbon Corporation - Pittsburgh PA

International Classification:

C07C039/16

US Classification:

568728

Abstract:

The invention provides a process for the continuous production of bisphenol-A by continuously reacting phenol using an acid catalyst resin and continuously or essentially continuously removing water from the system. Continuous removal of water allows for increased catalytic activity of the resin and therefore improved productivity. Removal is facilitated by conducting the process in a carousel simulated moving bed device. Process efficiency is further enhanced by conducting the process in a device configured to have a combination of series, parallel or reverse flows which are optionally arranged so the process results in higher yield and lower impurities.

US Patent:

7108789, Sep 19, 2006

Filed:

Apr 11, 2003

Appl. No.:

10/412502

Inventors:

Chen-Chou Chiang - Wexford PA, US
David L. Fair - Imperial PA, US

Assignee:

Calgon Carbon Corporation - Pittsburgh PA

International Classification:

B01D 15/04
C02F 1/44

US Classification:

210638, 210749, 210192, 210634

Abstract:

A process for reaction and separation which comprises inputting a process material into at least one column of a plurality of columns wherein each column has at least one inlet for accepting flow from another column or group of columns, an external feed stream, an external eluent stream or a combination thereof, and each column has at least one outlet for connecting to another column, a group of columns, an external product stream or a combination thereof. Each column is independently operable in an up-flow or down-flow mode and connected independently to one of the group comprising another column, an external feed stream, an external eluent stream, an external product stream and combinations thereof.

US Patent:

20040031757, Feb 19, 2004

Filed:

Aug 6, 2002

Appl. No.:

10/213580

Inventors:

Chen-Chou Chiang - Wexford PA, US
David Fair - Imperial PA, US

International Classification:

C02F001/28

US Classification:

210/656000

Abstract:

A process for reaction and separation which comprises inputting a process material into at least one column of a plurality of columns wherein each column has at least one inlet for accepting flow from another column or group of columns, an external feed stream, an external eluent stream or a combination thereof, and each column has at least one outlet for connecting to another column, a group of columns, an external product stream or a combination thereof. Each column is independently operable in an up-flow or down-flow mode and connected independently to one of the group comprising another column, an external feed stream, an external eluent stream, an external product stream and combinations thereof.

US Patent:

20040099605, May 27, 2004

Filed:

Jul 29, 2002

Appl. No.:

10/207585

Inventors:

Chen-Chou Chiang - Wexford PA, US
David Fair - Imperial PA, US

International Classification:

C02F001/28
C07C069/00

US Classification:

210/657000

Abstract:

A process for reaction and separation which comprises inputting a process material into at least one column of a plurality of columns wherein each column has at least one inlet for accepting flow from another column or group of columns, an external feed stream, an external eluent stream or a combination thereof, and each column has at least one outlet for connecting to another column, a group of columns, an external product stream or a combination thereof. Each column is independently operable in an up-flow or down-flow mode and connected independently to one of the group comprising another column, an external feed stream, an external eluent stream, an external product stream and combinations thereof.

US Patent:

20070234902, Oct 11, 2007

Filed:

Mar 29, 2006

Appl. No.:

11/277792

Inventors:

David Fair - Imperial PA, US
James McNamara - Pittsburgh PA, US
Michael Greenbank - Monaca PA, US

International Classification:

B01D 53/02

US Classification:

095134000

Abstract:

The method for removing mercury from a flue gas stream of the present invention is comprised of first treating a sorbent with a metal halide, and then contacting a sufficient amount of the sorbent with a gas stream for a sufficient amount of time to bind with a desired amount of the mercury in said gas stream. The metal is selected from Groups I and II of the periodic table of the elements. The halide is selected from the group consisting of I, Br, Cl. The metal halide comprises from about 0.5% to 25% by weight of said treated sorbent.

US Patent:

47844400, Nov 15, 1988

Filed:

Apr 11, 1988

Appl. No.:

7/179668

Inventors:

David L. Fair - Riverside CA

International Classification:

B60B 700

US Classification:

301 37R

Abstract:

A wheel shield is disclosed for covering the wheel of an automobile so that the sidewall of the tire carried thereon can be sprayed with a protectant solution. The shield comprises a frusto-conical body having a circumferential rim on the large diameter open end therof and a knob on the small diameter closed end thereof. On the top of the cylindrical rim a retainer member is provided having an angularly inwardly and outwardly extending free end portion. On the body adjacent the cylindrical rim and opposite the free end portion a reinforcing box structure is provided. When the shield is placed over the outer flange of the wheel, a manual push applied on the front surface of the box structure forces the free end portion into the crevice formed between the rim portion of the wheel and the tire to thereby detachably hold the shield on the wheel.

US Patent:

62942484, Sep 25, 2001

Filed:

Sep 27, 1994

Appl. No.:

8/313488

Inventors:

Sanjeev Madan - Coraopolis PA
James R. Jasenak - Sewickley PA
David L. Fair - Imperial PA

Assignee:

Bayer Corporation - Pittsburgh PA

International Classification:

B29C 4406

US Classification:

4283186

Abstract:

Molded, soft composite articles such as seat cushions are made by (a) applying a composition which forms a soft elastomer to all interior walls of an open mold, (b) introducing a composition which will react to form a low density, high resiliency, flexible foam under molding conditions into the mold in a manner such that the foam-forming composition will be substantially completely within the elastomer-forming composition; (c) closing the mold (i) prior to introduction of the foam-forming composition or (ii) at some point during or subsequent to introduction of the foam-forming mixture but before foam formation is completed and (d) allowing the foam-forming mixture to form a foam. The composite articles produced by this simple one-step process are characterized by good cushioning characteristics, good abrasion resistance and good mold reproducibility. This molding process generates less waste and requires less labor and equipment than current commercial processes.