Clamp for sheets of material
OwnerJacques Dussaultinventor
Life of this patent
Estimating the term…
Abstract
A clamp for sheets of material. The clamp includes a longitudinal main body with an external clamping side. The external clamping side comprises an external dragging surface for engaging a sheet of material. An internal clamping area inwardly extends from the external clamping side. The external dragging surface is at least partially movable into the internal clamping area so as to frictionally drag at least a portion of the sheet of material, engaged thereby, into the internal clamping area therewith. Clamping devices and bagging apparatus including such clamps are also disclosed. A method of clamping overlaying sheets of material is also disclosed.
Claims19
A clamping member for sheets of material, said clamping member comprising:
- an external clamping side for engaging a sheet of material;
- an internal clamping area inwardly extending from said external clamping side;
- and
- a pair of dragging sheets mounted on said external clamping side and comprising respective external ends thereof being secured to said external clamping side and respective opposite ends being retractable into said internal clamping area,
- wherein said external dragging sheets are at least partially retractable into said internal clamping area so as to frictionally drag therebetween at least a portion of the sheet of material, engaged thereby, into said internal clamping area therewith.
A clamping member for sheets of material, said clamping member comprising:
- an external clamping side comprising an external dragging surface for engaging a sheet of material;
- and
- an internal clamping area inwardly extending from said external clamping side, said internal clamping area comprising pneumatic members for being inflated and deflated;
- wherein said external dragging surface is at least partially movable into said internal clamping area so as to frictionally drag at least a portion of the sheet of material, engaged thereby, into said internal clamping area therewith, said pneumatic members being inflated so as to grip said at least a portion of the sheet of material and deflated so as to release said at least a portion of the sheet of material.
A clamping member for sheets of material, said clamping member comprising:
- an external clamping side comprising an external dragging surface for engaging a sheet of material;
- and
- an internal clamping area inwardly extending from said external clamping side, said internal clamping area comprising a pair of oppositely disposed pivotable clamping plates;
- wherein said external dragging surface is at least partially movable into said internal clamping area so as to frictionally drag at least a portion of the sheet of material, engaged thereby, into said internal clamping area therewith, said clamping plates providing for clamping said at least a portion of the sheet of material dragged within said clamping area.
Dependencies are inferred from the claim text.