Product packaging material and its manufacturing method
Patent 5733403 Issued on March 31, 1998. Estimated Expiration Date: 
November 28, 2015. 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.
November 28, 2015. 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 479999 2314876 3616135 InventorAssigneeApplicationNo. 553280 filed on 11/28/1995US Classes:156/207, With deformation or cutting of corrugated lamina156/193, With cutting of wound body (excludes nominal cutoff)156/194, With reshaping of wound body156/196, With permanent bending or reshaping or surface deformation of self sustaining lamina156/205, Transverse corrugating264/287, And subsequent reshaping of corrugated material493/407, With crushing or crumpling493/463, Corrugating493/464, Crushing or crumpling493/967DUNNAGE, WADDING, STUFFING, OR FILLING EXCELSIORExaminersPrimary: Loney, Donald J.Attorney, Agent or FirmInternational ClassB31F 001/22Foreign Application Priority Data1993-05-28 GBAbstractThis invention relates to a product packaging material and method, and in particular to a product packaging material (27) formed from a length of rolled corrugated paper (20) and a method of manufacture therefor. There is provided a packaging material comprising corrugated paper (20), the corrugated paper including non-sinusoidal corrugations (16, 18, 72). There is also provided a method of making a packaging material of multi-layer corrugated paper (27) including the steps of forming corrugated paper (20) having a sheet with sinusoidal corrugations (42), and compressing the sheet to destroy the sinusoidal form of at least some of the corrugations.Field of SearchParallel corrugationsPlural corrugated components ROLL OR COIL DUNNAGE, WADDING, STUFFING, OR FILLING EXCELSIOR WITH CUTTING, BREAKING, TEARING, OR ABRADING Folding With crushing or crumpling Corrugating Crushing or crumpling With deformation or cutting of corrugated lamina To form undulated to corrugated sheet and securing to base with parts of shaped areas out of contact Bonding in stressed condition of at least one prestressed element With cutting of wound body (excludes nominal cutoff) With reshaping of wound body With permanent bending or reshaping or surface deformation of self sustaining lamina Transverse corrugating Surface deformation only of sandwich or lamina (e.g., embossed panels) Subsequent to lamination Extruding followed by cutting to length And subsequent reshaping of corrugated material METHODS | |
