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US 6,007,469 AGranted
Method for forming a honeycomb corner protector with self-locking panels
AssigneePactiv Corporation
InventorsRobert E. Jaegers, Raymond A. Kowalski
Life of this patent
Estimating the term…
Abstract
A method for forming a honeycomb protector for protecting the corners, edges or other surfaces of articles during shipping of such articles comprising self-locking honeycomb panels. In one embodiment, the protector includes first and second unitary panels separated by a channel about which the panels are foldable. The first panel includes a lip which fits into a slit in the second panel to connect and lock the first and second panels in position.
Claims19
A method of making a protector from a panel including a core and a bottom face sheet comprising the steps of:
- a) providing a bottom face sheet;
- b) providing core on the bottom face sheet to define the panel;
- c) dividing the panel into first and second panel portions each including an inner generally upstanding vertical sidewall connected to the bottom face sheet defining a cavity, the first and second panel portions being foldable about the cavity to form the protector, the second sidewall terminating at the cavity in an inner longitudinally extending edge;
- and d) forming a lip at the inner edge.
1 more element
A method of making a protector comprising the steps of:
- a) providing a panel including a core sandwiched between top and bottom face sheets, the panel has a central longitudinal axis and a central transverse axis;
- b) cutting first and second parallel slits in the panel along the transverse axis, the first and second slits being spaced apart from each other and extending through the top face sheet and the core;
- and
- c) removing the core and the top face sheet between the first and second slits leaving the bottom face sheet intact to form a panel including first and second spaced apart panel portions and a cavity therebetween, the first and second panel portions being foldable about the cavity to form the protector, the second panel portion includes an inner generally vertical sidewall terminating at the top face sheet in an inner longitudinally extending edge;
- and
- d) forming a lip at the inner edge.
3 more elements
A method of making a protector comprising the steps of:
- a) providing a panel including a core sandwiched between a top face sheet and a bottom face sheet;
- b) defining a channel in said panel to divide said panel into first and second panel portions having opposing inner sidewalls and opposing peripheral edges of said top face sheet;
- c) forming a longitudinally extending lip on said first panel portion such that said core of said first panel portion being offset inwardly into said core from said respective peripheral edge of said top face sheet;
- and
- d) cutting a longitudinally extending slit in said top face sheet of said second panel portion, said lip being capable of fitting into said slit to connect said first and second panel portions together.
2 more elements
A method of making a protector comprising the steps of:
- a) providing a panel including a core sandwiched between top and bottom face sheets, the panel has a central longitudinal axis and a central transverse axis;
- b) cutting first and second parallel slits in the panel along the transverse axis, the first and second slits being spaced apart from each other and extending through the top face sheet and the core;
- and
- c) removing the core and the top face sheet between the first and second slits leaving the bottom face sheet intact to form a panel including first and second spaced apart panel portions and a cavity therebetween, the first and second panel portions being foldable about the cavity to form the protector;
- d) cutting third and fourth parallel slits along the central longitudinal axis, the third and fourth slits being spaced apart from each other and extending through the top face sheet and the core
- e) removing the core and the top face sheet between the third and fourth slits to form a panel including a third panel portion and second cavity therebetween, the first and third panel portions being foldable about the second cavity to form the protector, each of the second and third panel portions includes an inner generally vertical sidewall terminating at the top face sheet in an inner longitudinally extending edge;
- and
- f) pushing the sidewall of the second and third panel portions inwardly into the core from the edge to form a lip at the edge of each of the second and third panel portions.
5 more elements
Dependencies are inferred from the claim text.