Method and apparatus for fragmenting asphalt

Patent · Tue Dec 24 00:00:00 EST 1985

OSTI ID:5688874

Eftefield, L G; Simmons, G P; Stone, G L

A method and apparatus for laterally severing an asphalt layer to form a ribbon, separating the asphalt ribbon from an underlying base, elevating the separated asphalt ribbon, and fracturing the elevated asphalt ribbon by bending same. A cutting member having a leading edge which is insertable between the asphalt ribbon and base provides separation thereof along a lateral line. A ramp and elevating structure elevatingly guide the separated asphalt ribbon into a pair of breaker drums which are rotatable in opposite circumferential directions. Each breaker drum has protruding teeth which are arranged in laterally separated circumferential rows with the teeth in adjacent circumferential rows being preferably arcuately offset. Corresponding circumferential rows on the opposed breaker drums are laterally aligned and the teeth in those rows engage opposite surfaces of the asphalt ribbon during rotation of the breaker drums. The teeth in corresponding rows on the respective breaker drums alternately engage opposite surfaces of the asphalt ribbon at longitudinally spaced locations to bend and fracture the asphalt ribbon by displacing it in generally opposite transverse directions at the engaged locations.

• Assignee: Caterpillar Tractor Co.
• Patent Number(s): US 4560207
• OSTI ID: 5688874
• Resource Relation: Patent File Date: Filed date 1 Mar 1984; Other Information: PAT-APPL-585051
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
ASPHALTS
RECYCLING
EARTHMOVING EQUIPMENT
DESIGN
PAVEMENTS
WASTE PRODUCT UTILIZATION
PULVERIZERS
CRUSHING
FRACTURING
REMOVAL
BITUMENS
COMMINUTION
EQUIPMENT
MATERIALS HANDLING EQUIPMENT
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
TAR
320305* - Energy Conservation
Consumption
& Utilization- Industrial & Agricultural Processes- Industrial Waste Management