Andrew C Stephenson

US Patent:

7704750, Apr 27, 2010

Filed:

Jun 20, 2001

Appl. No.:

10/311815

Inventors:

Richard H. Hall - Midland MI, US
Andrew J. Stephenson - Bay City MI, US

Assignee:

Imbibitive Technologies Corp. - Midland MI

International Classification:

G01N 33/18

US Classification:

436166, 436 3, 436169, 422 56, 422119, 252190, 252194, 252964

Abstract:

Composition, which includes a dye that changes color when contacted with a suitable amount of an organic substance, in conjunction with a matrix, paste, support or web, can indicate visually or photometrically the presence of the organic substance. An organic spill absorbing material may be present. For instance, the dye may be selected from the class of anthracene, azo, anthraquinone, pyrazolone, and quinone dyes, and be hydrophobic and organic oleophilic. For an example, the dye may be Oil Red “A. ” The matrix, paste, support or web may include a microfiber cloth, which may be coated with an adhesive for attachment of the dye, and/or include a water-dissolving paper which may envelope the dye. A device for ascertaining whether an organic substance is present includes the dye or composition with the dye at a certain locale, and a light-transmissive pathway in communication with the location and a detection site external the location. A spectral instrument may be included for the detection, and a remote monitor site may be in communication with the instrument.

US Patent:

D409746, Nov 10, 1998

Filed:

Sep 23, 1997

Appl. No.:

D/076773

Inventors:

Richard H. Hall - Midland MI
Nicolo Flor - Oakville, CA
Andrew J. Stephenson - Midland MI

Assignee:

Imbibitive Technologies Corp. - Wilmington DE

International Classification:

2304

US Classification:

D23365

US Patent:

D409738, Nov 10, 1998

Filed:

Sep 23, 1997

Appl. No.:

D/076772

Inventors:

Richard H. Hall - Midland MI
Andrew J. Stephenson - Midland MI
Nicolo Flor - Oakville, CA

Assignee:

Imbibitive Technologies Corp. - Wilmington DE

International Classification:

2304

US Classification:

D23365

US Patent:

D419652, Jan 25, 2000

Filed:

Sep 23, 1997

Appl. No.:

D/076767

Inventors:

Richard H. Hall - Midland MI
Andrew J. Stephenson - Midland MI
Nicolo Flor - Oakville, CA

Assignee:

Imbibitive Technologies Corp. - Wilmington DE

International Classification:

2301

US Classification:

D23259

US Patent:

D4158318, Oct 26, 1999

Filed:

Sep 23, 1997

Appl. No.:

D/076774

Inventors:

Richard H. Hall - Midland MI
Andrew J. Stephenson - Midland MI
Nicolo Flor - Oakville, CA

Assignee:

Imbibitive Technologies Corp. - Wilmington DE

International Classification:

2304

US Classification:

D23365

US Patent:

60833807, Jul 4, 2000

Filed:

Apr 20, 1995

Appl. No.:

8/425588

Inventors:

Theodore W. Selby - Midland MI
Andrew J. Stephenson - Bay City MI

Assignee:

Tannas Co. - Midland MI

International Classification:

C10G 500
B01L 1100
B01D 300

US Classification:

208340

Abstract:

A method to condense or coalesce matter is carried out by providing a suitable, narrow passageway for throughput of matter in a vapor state, and passing the matter in a vapor state through said passageway, under conditions such that the matter is coalesced into a more ordered state. Also, a matter coalescing apparatus has a hollow housing in communication with at least one of--(A) a plurality of suitably narrow hollow passageways and (B) a suitably narrow, elongately hollow, matter-coalescing passageway--for throughput of matter to include as a vapor therein. Consequently, highly efficient yields of coalesced matter, to include liquid coalesced from vapor, even under only mild vacuum or at about ambient atmospheric pressure can be obtained. This is especially so with respect to oils, where yields as high as 95 percent or greater can be provided hereby. The invention can be practiced under such outstanding yield efficiencies without a general need for significant external cooling.