Methods, devices and computer program products automatically package an object in a covering material such as casing and/or netting by: (a) automatically pushing at least one object through a product chute; (b) pulling a covering material upstream of the product chute off an exterior surface of the product...http://www.google.es/patents/US7386966?utm_source=gb-gplus-sharePatente US7386966 - Automated packaging systems with associated automated pushers
Automated packaging systems with associated automated pushers