Patent ID: 7297301

Claim:
A process for transforming pre-used asphaltic roofing shingles into products comprising the steps of: (a) receiving said shingles without foreign material and with nails; (b) reducing said shingles into particles in a comminutor; (c) removing the nails from the particles by first means of a magnet; (d) separating the particles into three sizes; (e) returning the largest particles to the comminutor; (f) weighing a predetermined quantity of each of the two smaller sizes of particles as a second means to control product thickness; (g) combining the two predetermined quantities into a charge; (h) procuring an empty mold configured to the shape of the product; (i) covering the inside faces of said mold with a release agent; (j) charging the mold with the charge; (k) distributing the charge evenly within the mold; (l) placing the charged mold in a press; (m) compressing the charge with high pressure; (n) maintaining said pressure until the charge is fully compressed to produce a formed material; (o) releasing the pressure; (p) removing the mold from the press; (q) opening the mold; (r) ejecting the formed material from the mold; (s) inspecting said formed material and delivering said formed material as product to a customer.