Dean A Roth

US Patent:

7195676, Mar 27, 2007

Filed:

Jul 13, 2004

Appl. No.:

10/890502

Inventors:

Wayne Thomas McDermott - Fogelsville PA, US
Gene Everad Parris - Coopersburg PA, US
Dean Van-John Roth - Center Valley PA, US
Hoshang Subawalla - Macungie PA, US

Assignee:

Air Products and Chemicals, Inc. - Allentown PA

International Classification:

C23G 1/00

US Classification:

134 2, 134 20, 134 26, 134 30, 134 34, 134 35, 134 36, 134 42, 134902

Abstract:

Method for removing flux residue and defluxing residue from an article using a dense processing fluid and a dense rinse fluid is disclosed herein. In one embodiment, there is provided a method comprising: introducing the article comprising contaminants into a processing chamber; contacting the article with a dense processing fluid comprising a dense fluid, at least one processing agent, and optionally a cosolvent to provide a partially treated article; and contacting the partially treated article with a dense rinse fluid comprising the dense fluid and optionally the cosolvent to provide a treated article wherein an agitation source is introducing during at least a portion of the first and/or the second contacting step.

US Patent:

7439654, Oct 21, 2008

Filed:

Feb 24, 2004

Appl. No.:

10/785298

Inventors:

Wayne Thomas McDermott - Fogelsville PA, US
Dean Van-John Roth - Center Valley PA, US
Richard Carl Ockovic - Northampton PA, US

Assignee:

Air Products and Chemicals, Inc. - Allentown PA

International Classification:

H01L 41/04

US Classification:

31032319, 310334

Abstract:

Ultrasonic probe comprising an elongate body having a first end and a second end, an ultrasonic transducer attached to the probe at or adjacent the first end, and an enlarged support section intermediate the ultrasonic transducer and the second end, wherein the enlarged support section has an equivalent diameter greater than an equivalent diameter of the body at any location between the enlarged support section and the ultrasonic transducer. The probe may be used to introduce ultrasonic energy into ultrasonic cleaning systems.

US Patent:

7867779, Jan 11, 2011

Filed:

Jan 27, 2006

Appl. No.:

11/340641

Inventors:

Wayne Thomas McDermott - Fogelsville PA, US
Richard Carl Ockovic - Northampton PA, US
Dean Van-John Roth - Center Valley PA, US

Assignee:

Air Products and Chemicals, Inc. - Allentown PA

International Classification:

G01N 1/22

US Classification:

436181, 436148, 436174, 436175, 436177, 436178, 422 83, 422 88, 422 93

Abstract:

A system and method for measuring and analyzing particles within a gas feed stream. In one aspect, the system includes a particle counter and a particle capture filter that are arranged in parallel. In another aspect, the system includes a purifying device to remove trace molecular impurities from a gas feed stream to reduce the presence of impurities.

US Patent:

20060081273, Apr 20, 2006

Filed:

Oct 20, 2004

Appl. No.:

10/969595

Inventors:

Wayne McDermott - Fogelsville PA, US
Hoshang Subawalla - Macungie PA, US
Madhukar Rao - Fogelsville PA, US
Dean Roth - Center Valley PA, US
Keith Fabregas - Nazareth PA, US

International Classification:

B08B 3/00

US Classification:

134026000, 134034000

Abstract:

A method for removing contaminants from an article is described herein. In one embodiment, there is provided a method comprising loosening at least a portion of the contaminants by treating the article with a treatment method involving a processing fluid and/or dense processing fluid to provide a partially treated article comprising loosened contaminants; contacting the partially treated article with a dense rinse fluid comprising a dense fluid, optionally a co-solvent, and optionally an entrainer to remove liquid-based contaminants; and removing at least a portion of the loosened contaminants by exposing the partially treated article with at least one exposure method to provide a treated article wherein the selection of the at least one exposure method depends upon whether the loosened contaminants are wet or dry.

US Patent:

20070137675, Jun 21, 2007

Filed:

Feb 5, 2007

Appl. No.:

11/702317

Inventors:

Wayne McDermott - Fogelsville PA, US
Gene Parris - Coopersburg PA, US
Dean Roth - Center Valley PA, US
Hoshang Subawalla - Macungie PA, US

International Classification:

B08B 3/00
B08B 3/12
B08B 7/00

US Classification:

134026000, 134001000, 134033000

Abstract:

Method for removing flux residue and defluxing residue from an article using a dense processing fluid and a dense rinse fluid is disclosed herein. In one embodiment, there is provided a method comprising: introducing the article comprising contaminants into a processing chamber; contacting the article with a dense processing fluid comprising a dense fluid, at least one processing agent, and optionally a cosolvent to provide a partially treated article; and contacting the partially treated article with a dense rinse fluid comprising the dense fluid and optionally the cosolvent to provide a treated article wherein an agitation source is introducing during at least a portion of the first and/or the second contacting step.

US Patent:

20080202550, Aug 28, 2008

Filed:

Apr 28, 2008

Appl. No.:

12/110831

Inventors:

Wayne Thomas McDermott - Fogelsville PA, US
Dean Van-John Roth - Center Valley PA, US
Richard Carl Ockovic - Northampton PA, US

Assignee:

AIR PRODUCTS AND CHEMICALS, INC. - Allentown PA

International Classification:

B08B 3/12

US Classification:

134 1, 134147

Abstract:

Ultrasonic probe comprising an elongate body having a first end and a second end, an ultrasonic transducer attached to the probe at or adjacent the first end, and an enlarged support section intermediate the ultrasonic transducer and the second end, wherein the enlarged support section has an equivalent diameter greater than an equivalent diameter of the body at any location between the enlarged support section and the ultrasonic transducer. The probe may be used to introduce ultrasonic energy into ultrasonic cleaning systems.

US Patent:

62211323, Apr 24, 2001

Filed:

Oct 14, 1999

Appl. No.:

9/417668

Inventors:

Chun Christine Dong - Macungie PA
Alexander Schwarz - Bethlehem PA
Dean V. Roth - Center Valley PA
Delbert D. Christman - Kempton PA

Assignee:

Air Products and Chemicals, Inc. - Allentown PA

International Classification:

B01D 5328

US Classification:

95117

Abstract:

An adsorbent and method for making it and its use in removing water from gaseous hydrogen halide. Magnesium halide supported on an activated carbon prepared under vacuum will remove water at 1 to 500 ppm.