Abstract: This invention is directed to an improved contact surface for manipulating articles wherein the microstructure included on the contact surface having a plurality of pillars spaced apart in the range of 200 ?m and 600 ?m, having a height in the range of 50 ?m and 1200 ?m, a width of in the range of 70 ?m and 300 ?m, a wall draft angle between 0° and 15°, a density of in the range of 5,000 to 20,000 pillars per square inch, and a friction rating greater than 7. The contact surface can be included on a sewing machine feed dog, a glove, sporting equipment, firearm grip, hand rail, tool grip, tool handle, and a strap such as for a satchel or backpack.

Abstract: This invention is directed to an improved contact surface for manipulating articles wherein the microstructure included on the contact surface having a plurality of pillars spaced apart in the range of 200 ?m and 600 ?m, having a height in the range of 50 ?m and 1200 ?m, a width of in the range of 70 ?m and 300 ?m, a wall draft angle between 0° and 15°, a density of in the range of 5,000 to 20,000 pillars per square inch, and a friction rating greater than 7. The contact surface can be included on a sewing machine feed dog, a glove, sporting equipment, firearm grip, hand rail, tool grip, tool handle, and a strap such as for a satchel or backpack.

Abstract: This invention is a fracturing component and method having a fluid and a plurality of three dimensional structures mixed in the fluid wherein each structure has a longitudinal axis, center of mass and center of pressure wherein the center of mass and the center of pressure do not align in a stable manner causing the structure to flutter in the fluid to reduce the structure from settling out of the fluid when injected into a fissure. Each three dimensional structure can include a first end of the structure having a first plane having an angle of incident ?1 offset from perpendicular to the longitudinal axis and a second end of the structure having a second plane having an angle of incident ?2 offset from perpendicular to the longitudinal axis. The difference between ?1 and ?2 can be in a range of 0° to 65°.

Abstract: This invention is directed to an improved contact surface for manipulating fabrics wherein the microstructure included on the contact surface having a plurality of pillars spaced apart in the range of 200 ?m and 600 ?m, having a height in the range of 50 ?m and 1200 ?m, a width of in the range of 70 ?m and 300 ?m, a wall draft angle between 0° and 15°, a density of in the range of 5,000 to 20,000 pillars per square inch, and a friction rating greater than 7. The contact surface can be included on a sewing machine feed dog, a glove, sporting equipment, firearm grip, hand rail, tools, and a strap such as for a satchel or backpack.

Abstract: This invention is a fracturing component and method having a fluid and a plurality of three dimensional structures mixed in the fluid wherein each structure has a longitudinal axis, center of mass and center of pressure wherein the center of mass and the center of pressure do not align in a stable manner causing the structure to flutter in the fluid to reduce the structure from settling out of the fluid when injected into a fissure. Each three dimensional structure can include a first end of the structure having a first plane having an angle of incident ?1 offset from perpendicular to the longitudinal axis and a second end of the structure having a second plane having an angle of incident ?2 offset from perpendicular to the longitudinal axis. The difference between ?1 and ?2 can be in a range of 0° to 65°.