Slit paper method of expansion, shipment and expansion devices
AssigneeHexcelPack, LLC
InventorDavid Paul Goodrich
Life of this patent
Estimating the term…
Abstract
An expansion devise includes an unexpended slit sheet roll that is wound on a paper core that is wider than the slit sheet paper. The paper core is placed into a yoke that holds the paper in position on each side of the unexpended slit sheet material. An adjustable downward pressure is exerted on the paper core and the paper core exerts pressure on the yoke. As the paper is pulled, this downward pressure creates the friction required to enable the unexpended slit sheet to be unwind and fed while simultaneously expanding. A blank sheet is formed into a box that stabilizes slit paper sheet wound around a core member.
Claims24
An expander device for manually expanding slit sheet paper, comprising:
- a) a roll of slit sheet paper having rows of straight slits extending parallel to an axis of the roll, said slit sheet paper being manually expandable across an entire width of the roll of slit sheet paper upon applying a manual pulling force to a distal end of said slit sheet paper in a direction perpendicular to the axis of the roll such that the entire width of the roll of slit sheet paper expands in the direction perpendicular to the axis of the roll;
- b) a support that rotatably suspends the roll of slit sheet paper;
- c) a pressure mechanism that inhibits rotation of said roll of slit sheet paper with respect to said support, including:
- a first member connected to said roll of slit sheet paper that rotates with said roll of slit sheet paper;
- a pressing member that exerts frictional pressure against said first member connected to said roll of slit sheet paper to inhibit rotation of said roll of slit sheet paper with respect to said support;
- a spring formed from an elongated spiral member arranged to exert a spring force against said pressing member contributing to said frictional pressure against said first member connected to said roll of slit sheet paper;
- and
- a movable member that is movable to exert a pressure against said spring and cause said elongated spiral member to bend to adjust the spring force exerted by the spring against said pressing member;
- d) whereby the slit sheet paper can be manually pulled and expanded from the roll of slit sheet paper upon applying a manual pulling force, in a direction perpendicular to the axis of the roll along a plain of the slit sheet paper to a periphery of the roll, to the distal end of said slit sheet paper sufficient to unwind the roll of slit sheet paper by moving said movable member to exert a pressure against said spring, such that said spring then exerts a spring force against said pressing member, such that said pressing member then exerts frictional pressure against said first member.
A pressure mechanism for inhibiting rotation of a roll of slit sheet paper that is rotatably suspended in a support of an expander device to regulate force required to manually expand the slit sheet paper, comprising:
- a first member that connects to the roll of slit sheet paper to rotate with said roll of slit sheet paper;
- a pressing member that exerts frictional pressure against said first member that connects to the roll of slit sheet paper to inhibit rotation of the roll of slit sheet paper;
- a spring formed from an elongated spiral member arranged to exert a spring force against said pressing member to contribute to said frictional pressure against said first member that connects to the roll of slit sheet paper;
- and
- a movable member that is movable to exert a pressure against said spring to adjust the spring force exerted by the spring against said pressing member,
- whereby a slit sheet paper having an array of straight slits extending parallel to an axis of the roll can be manually pulled and expanded from a roll of slit sheet paper that is rotatably suspended in a support of an expander device upon applying a manual pulling force to a distal end of said slit sheet paper in a direction perpendicular to an axis of the roll core along a plain of the slit sheet paper to a periphery of said roll sufficient to overcome the frictional pressure exerted by the pressing member to unwind the roll of slit sheet paper by moving said movable member to exert a pressure against said spring, such that said spring then exerts a spring force against said pressing member, such that said pressing member then exerts frictional pressure against said first member.
A pressure mechanism for inhibiting rotation of a roll of slit sheet paper that is rotatably suspended in a support of an expander device to regulate force required to manually expand the slit sheet paper, comprising:
- a first member that connects to the roll of slit sheet paper to rotate with said roll of slit sheet paper;
- a spring formed from an elongated spiral member arranged to impart a spring force to exert frictional pressure against said first member that connects to the roll of slit sheet paper to inhibit rotation of the roll of slit sheet paper;
- and
- a movable member that is movable to exert a pressure against said spring to adjust the spring force exerted by the spring against said pressing member,
- whereby a slit sheet paper having an array of straight slits extending parallel to an axis of the roll can be manually pulled and expanded from a roll of slit sheet paper that is rotatably suspended in a support of an expander device upon applying a manual pulling force to a distal end of said slit sheet paper in a direction perpendicular to an axis of the roll core along a plain of the slit sheet paper to a periphery of said roll sufficient to overcome the frictional pressure exerted by the pressing member to unwind the roll of slit sheet paper by moving said movable member to exert a pressure against said spring, such that said spring then exerts a spring force against said pressing member, such that said pressing member then exerts frictional pressure against said first member.
Dependencies are inferred from the claim text.