Richard D May

Address:

22918 Chaus Ct, Katy, TX 77494

VIN:

1GNFC13087R352601

Make:

CHEVROLET

Model:

TAHOE

Year:

2007

US Patent:

7709106, May 4, 2010

Filed:

Jul 31, 2003

Appl. No.:

10/631149

Inventors:

Phillip B. Blankenship - Wichita KS, US
Richard Kent Steger - Wichita KS, US
Richard W. May - Wichita KS, US

Assignee:

Road Science, L.L.C. - Tulsa OK

International Classification:

B32B 9/00

US Classification:

428701, 428 95

Abstract:

A highly strain tolerant, substantially moisture impermeable, reflective crack relief interlayer is provided. The interlayer includes a polymer modified asphalt binder mixed with a dense fine aggregate mixture containing a substantial amount of manufactured sand. The interlayer mix is designed using a fatigue test and a stability test. Preferably, a hot mix asphalt overlay that is compatible with the interlayer, as well as the demands of local traffic and climate, is placed over the interlayer so that a protected, smooth paved surface is provided. The interlayer may delay the first appearance of cracks and the severity of cracks for several years compared with traditional hot mix overlays and extend pavement service life.

US Patent:

8361216, Jan 29, 2013

Filed:

Jul 30, 2010

Appl. No.:

12/847648

Inventors:

Majid Jamshed Chughtai - Chester, GB
Helen Jayne Davies - Frodsham, GB
Richard Walter May - Wichita KS, US
David Strickland - Manchester, GB

Assignee:

Shell Oil Company - Houston TX

International Classification:

C08L 95/00

US Classification:

106274, 106275

Abstract:

A method of making a sulfur-extended asphalt mixture with a minimum of hydrogen sulfide gas release into the atmosphere by using sulfur granules with specific physical properties and which are made by successively coating a starting sulfur seed particle with liquid sulfur that is solidified between coatings to thereby build up the a sulfur particle of a desired size. The sulfur granules are used to in the preparation of a sulfur, bitumen and aggregate mixture to provide the sulfur-extended asphalt.

US Patent:

20140147205, May 29, 2014

Filed:

Apr 5, 2012

Appl. No.:

14/009559

Inventors:

David Strickland - Wythenshawe, GB
Majid Jamshed Chughtai - Ince, GB
Richard Walter May - Wichita KS, US

International Classification:

C08L 95/00
E01C 21/00
C08K 3/06

US Classification:

404 75, 523450, 523400

Abstract:

The invention provides a bituminous composition comprising 20 to 80 wt % bitumen, 0.1 to 7 wt % of a copolymer formed from monomers including ethylene and glycidyl methacrylate or glycidyl acrylate, and 20 to 60 wt % sulphur, all weight percentages based on the weight of the bituminous composition. It further provides a process for making this composition and asphalt compositions comprising such bituminous composition.