Method of erecting carton blanks
Patent 4041850 Issued on August 16, 1977. Estimated Expiration Date: 
August 16, 1994. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
August 16, 1994. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 1682878 3748972 3828659 InventorApplicationNo. 05/650949 filed on 01/21/1976US Classes:493/123, And use of vacuum to handle work493/128, With application of adhesive493/181, Of flattened tubular blank493/183, End flap folding493/310, Including overfolding or reverse bending493/313By direct application of vacuum or fluid pressureExaminersPrimary: Coan, James F.Attorney, Agent or FirmAbstractA machine is disclosed for erecting cases stored in upright, flattened positions in storage magazines. The machine includes means for extracting end member cases from the magazines, for dropping the extracted cases into drop chutes, for urging the cases in a generally horizontal direction out of the drop chutes, for opening the flattened cases by spreading the case sides apart, for tucking in lower case end flaps, for folding one case bottom panel in under the tucked end flaps, for applying adhesive to the bottom surface of the folded bottom panel, for folding another bottom panel in under the bottom panel having adhesive thereon, and for compressing the two bottom panels together. | |
