Protective products such as envelopes having a unique combination of interior padding of expanded slit sheet paper and exterior lining of embossed paper
OwnerDavid Paul Goodrichinventor
Life of this patent
Estimating the term…
Abstract
A protective product, such as, e.g., an envelope or pouch, is provided that includes at least one expanded slit paper sheet in an expanded state, and an embossed paper sheet facing the expanded slit paper sheet and fixed to the expanded slit paper sheet along at least a portion of a length in an expansion direction of the expanded slit sheet paper. In the preferred embodiments, the embossed paper sheet has a plurality of embossings that increase the rigidity of the embossed paper sheet, thereby inhibiting deformation of the embossed paper sheet that is fixed to the expanded slit sheet paper.
Claims123
An envelope, comprising:
- at least one expanded slit paper sheet in an expanded state, wherein in said expanded state said at least one expanded slit paper sheet exerts a contraction force in a direction of a non- expanded state of the at least one expanded slit paper sheet;
- a first paper sheet facing a first face of said at least one expanded slit paper sheet and fixed in relation to said at least one expanded slit paper sheet along at least a portion of a periphery of said at least one expanded slit paper sheet;
- a second paper sheet facing said at least one expanded slit paper sheet on an opposite face of said at least one expanded slit paper sheet from said first paper sheet and fixed in relation to said at least one expanded slit paper sheet along at least a portion of said periphery of said at least one expanded slit paper sheet;
- wherein said envelop has a pouch with a cushioning wall, with the first paper sheet being an interior layer forming an interior wall of the pouch, the second paper sheet being an exterior layer forming an exterior wall of the pouch, and the at least one expanded slit paper sheet being between the interior layer and the exterior layer;
- and
- wherein either a) at least one of said first paper sheet and said second paper sheet is an embossed sheet having a plurality of embossments that inhibit deformation of said first and second paper sheets due to said contraction force of said at least one expanded slit paper sheet wherein said embossments are distributed across at least one of the interior wall of said pouch and the exterior wall of said pouch or b) said first paper sheet and said second paper sheet are non-embossed sheets having a heavier weight compared to a weight of said at least one expanded slit paper sheet that inhibit deformation of said first and second paper sheets due to contraction forces of said at least one expanded slit paper sheet.
The envelope according to claim 1, wherein each of said first paper sheet and said second paper sheet is a non-embossed sheet having a weight of 50# or more under the TAPPI standard paper weight specification for 3000 square feet.
The envelope according to claim 1, wherein each of said first paper sheet and said second paper sheet is a sheet having a weight of 50# or more under the TAPPI standard paper weight specification for 3000 square feet.
The envelope according to claim 1, wherein said first paper sheet is a non-embossed Kraft sheet having a weight of paper or more under the TAPPI standard paper weight specification for 3000 square feet.
The envelope according to claim 1, wherein said first and second paper sheets are non-embossed paper sheets.
The envelope according to claim 1, wherein said at least one expanded slit paper sheet is at least one substantially rectangular sheet that is fixed to at least one of the first paper sheet and the second paper sheet only at two opposite end regions of said at least one expanded slit paper sheet.
The envelope according to claim 1, wherein said at least one expanded slit paper sheet includes two expanded slit paper sheets that are alongside and directly contact each other.
The envelope according to claim 1, wherein:
- said first paper sheet and said second paper sheet contact said at least one expanded slit paper sheet within a central portion of said at least one expanded slit paper sheet but are free from connection to said at least one expanded slit paper sheet within said central portion of said at least one expanded slit paper sheet.
The envelope according to claim 1, wherein said cushioning wall of said pouch is folded such that the cushioning wall forms both front and back walls of said pouch and such that said second paper sheet is an exterior layer on both front and back faces of the front and back walls of said pouch.
The envelope according to claim 1, wherein:
- said envelope is made from recyclable paper.
The envelope according to claim 1, wherein:
- said at least one expanded slit paper sheet in an expanded state includes a plurality of expanded slit paper sheets in an expanded state layered alongside each other.
A method, comprising:
- a) providing the envelope of claim 1;
- and
- b) placing an item within a pouch of said envelope with said at least one expanded slit paper sheet providing cushioning to protect said item within said pouch.
The envelope according to claim 1, wherein at least one of said first paper sheet and said second paper sheet is an embossed sheet having a plurality of embossments that inhibit deformation of said first and second paper sheets due to the contraction force of said at least one expanded slit paper sheet wherein said embossments are distributed across at least one of the interior wall of said pouch and the exterior wall of said pouch.
The envelop according to claim 1, wherein said at least one expanded slit paper sheet is a single expanded slit paper sheet, such that said envelope includes only a single-layer of expanded slit sheet paper.
The envelop according to claim 1, wherein said envelope includes an exterior layer of embossed paper having downward facing embossments.
The envelope according to claim 1, wherein said envelope includes an interior layer of embossed paper having both upward and downward facing embossments.
The envelop according to claim 1, wherein said at least one expanded slit paper sheet is an extensible sheet having an extensibility of greater than 3% in both a machine direction and in a cross direction.
The envelop according to claim 1, wherein said at least one expanded slit paper sheet is an extensible sheet having an extensibility of greater than 5% in both a machine direction and in a cross direction.
The envelop according to claim 1, wherein said at least one expanded slit paper sheet is an extensible sheet having an extensibility of between 3-15% in a machine direction.
The envelop according to claim 1, wherein said at least one expanded slit paper sheet is an extensible sheet having an extensibility of between 3-20% in a machine direction.
The envelope according to claim 1, wherein said envelope has a pouch including a cushioning wall, with the first paper sheet being an interior layer forming an interior wall of the pouch, the second paper sheet being an exterior layer forming an exterior wall of the pouch, and the at least one expanded slit paper sheet being a single expanded slit paper sheet between the interior layer and the exterior layer.
The envelope according to claim 1, wherein at least one of said first paper sheet and said second paper sheet is a non-embossed sheet having a weight of 60# or more under the TAPPI standard paper weight specification for 3000 square feet.
The envelope according to claim 1, wherein at least one of said first paper sheet and said second paper sheet is a non-embossed Kraft sheet having a weight of 60# paper or more under the TAPPI standard paper weight specification for 3000 square feet.
The envelope according to claim 1, wherein at least one of said first paper sheet and said second paper sheet has a weight of 30# or more under the TAPPI standard paper weight specification for 3000 square feet.
The envelope according to claim 1, wherein at least one of said first paper sheet and said second paper sheet is a Kraft sheet having a weight of 30# paper or more under the TAPPI standard paper weight specification for 3000 square feet.
A method of making an envelope, comprising:
- providing at least one expandable slit paper sheet;
- providing a first paper sheet for facing a first face of said at least one expandable slit paper sheet;
- providing a second paper sheet for facing the at least one expanded slit paper sheet on an opposite face of the at least one expanded slit paper sheet from the first paper sheet;
- expanding the at least one expanded slit paper sheet to an expanded state and fixing the at least one expanded slit paper sheet at at least opposite portions of a periphery of the at least one expanded slit paper sheet in relation to the first paper sheet and the second paper sheet, the at least one expanded slit paper sheet in the expanded state exerting a contraction force in a direction of a non-expanded state of the at least one expanded slit paper sheet;
- forming a cushioning wall for the envelop with the first paper sheet being an interior layer forming an interior wall of the pouch, the second paper sheet being an exterior layer forming an exterior wall of the pouch, and the at least one expanded slit paper sheet being between the interior layer and the exterior layer;
- and
- inhibiting deformation of said first and second paper sheets in response to said contraction force of said at least one expanded slit paper sheet by either a) providing at least one of the first paper sheet and the second paper sheet with a plurality of embossments that are distributed across at least one of the interior wall of the pouch and the exterior wall of the pouch or b) providing the first paper sheet and the second paper sheet as non-embossed sheets having a heavier weight compared to a weight of the at least one expanded slit paper sheet sufficient to inhibit deformation of the first and second paper sheets.
An envelope, comprising:
- at least one expanded slit paper sheet in an expanded state;
- a first paper sheet facing a first face of said at least one expanded slit paper sheet and fixed in relation to said at least one expanded slit paper sheet along at least a portion of a periphery of said at least one expanded slit paper sheet;
- a second paper sheet facing said at least one expanded slit paper sheet on an opposite face of said at least one expanded slit paper sheet from said first paper sheet and fixed in relation to said at least one expanded slit paper sheet along at least a portion of said periphery of said at least one expanded slit paper sheet;
- wherein either a) at least one of said first paper sheet and said second paper sheet are embossed sheets having a plurality of embossments that inhibit deformation of said first and second paper sheets due to contraction forces of said at least one expanded slit paper sheet or b) at least one of said first paper sheet and said second paper sheet are non-embossed sheets having a heavier weight compared to a weight of said at least one expanded slit paper sheet that inhibit deformation of said first and second paper sheets due to contraction forces of said at least one expanded slit paper sheet, and
- wherein said at least one expanded slit paper sheet is at least one substantially rectangular sheet that is fixed to at least one of the first paper sheet and the second paper sheet only at two opposite end regions of said at least one expanded slit paper sheet.
Dependencies are inferred from the claim text.