E - Fixed Constructions – 21 – C
Patent
E - Fixed Constructions
21
C
94/52
E21C 37/00 (2006.01)
Patent
CA 1234009
Method and Apparatus For Crushing Asphalt Abstract of the Disclosure 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.
474518
Eftefield Larry G.
Simmons Gerald P.
Stone Gregory L.
Caterpillar Inc.
Smart & Biggar
LandOfFree
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