Darren G Hazlett

US Patent:

52543854, Oct 19, 1993

Filed:

Jun 3, 1991

Appl. No.:

7/709298

Inventors:

Darren G. Hazlett - Austin TX

International Classification:

B32B 516

US Classification:

428 76

Abstract:

This invention provides an encapsulated asphalt which is comprised of an asphalt cement or modified asphalt cement encapsulated by a polymeric coating (examples: ethylene vinyl acetate copolymer, ethylene-acrylic acid copolymer, polyethylene, polypropylene, etc. ). The pellet of encapsulated asphalt is of such a size that it may be handled transported and stored at ambient temperatures and in much the same manner as grain, aggregate, or other granular materials. The encapsulated asphalt cement or modified asphalt cement will not suffer from degradation due to prolonged storage. The polymeric coating material and thickness may be chosen such that the coating will not alter the asphalt properties significantly, or may be used as a modifier for the asphalt which will be incorporated into the asphalt at the point of use.

US Patent:

56259905, May 6, 1997

Filed:

Nov 22, 1995

Appl. No.:

8/590633

Inventors:

Darren G. Hazlett - Austin TX

International Classification:

E04F 1300

US Classification:

523112

Abstract:

This invention provides an interlocking ground covering element, the shape of which is an abstraction of the shape of the state of Texas. The interlocking of multiple adjacent elements is obtained by the inherent projections and recesses comprising the element's shape. The elements can be used to cover horizontal surfaces as in paving or vertical surfaces as seen in retaining walls.