Sealing member for toner cartridge
AssigneeCF Technologies
InventorsJan De Kesel, Gino Sirejacob, Alexander Van Betsbrugge
Life of this patent
Estimating the term…
Abstract
Sealing member formed by a sealing film with a substantially longitudinal portion to be torn out, wherein the sealing film is connected to a pulling strip made of a layer, with fibers extending in a direction forming an angle between −60° and +60° with respect to the tearing direction of the longitudinal portion to be torn out.
Claims50
Sealing member for toner cartridge, said sealing member comprising a sealing film having a substantially longitudinal portion to be torn out between a first end and a second end, said longitudinal portion extending between a first line and a second line and being adapted to be torn along a tearing direction between the first end and the second end, wherein said sealing film comprises a layer with a thickness comprised between 20 μm and 1 mm, whereby said layer is connected to a pulling means, said pulling means comprising at least a layer comprising fibres extending in a direction forming an angle comprised between −60° and +60° with respect to the tearing direction of the longitudinal portion to be torn.
A sealing member for toner cartridge, said sealing member comprising a sealing film having a substantially longitudinal portion to be torn out between a first end and a second end, said longitudinal portion extending between a first line and a second line and being adapted to be torn along a tearing direction between the first end and the second end, wherein said sealing film comprises a sealing layer with a thickness comprised between 20 μm and 1 mm, whereby said layer is connected to a pulling means, said pulling means comprising at least a pulling layer comprising fibres extending in a direction forming an angle comprised between −60° and +60° with respect to the tearing direction of the longitudinal portion to be torn, in which the sealing layer has:
- a first longitudinal surface element selected from the group consisting of cuts, grooves, recesses and combinations thereof and extending along the first line, and
- a second longitudinal surface element selected from the group consisting of cuts, grooves, recesses and combinations thereof and extending along the second line,
- whereby said longitudinal surface elements extend in a direction comprised between 5° and 175° with respect to the preferred substantially linear tearing direction.
A toner holder selected from the group consisting of toner container and toner cartridge, said holder being provided with a sealing member for closing an opening of the toner holder, said sealing member comprising a sealing film having a substantially longitudinal portion to be torn out between the first end and the second end, said longitudinal portion extending between a first line and a second line and being adapted to be torn along a tearing direction between a first end and a second end, wherein said sealing film comprises a layer with a thickness comprised between 20 μm and 1 mm, whereby said layer is connected to a pulling means, said pulling means comprising at least a layer comprising fibres extending in a direction forming an angle comprised between −60° and +60° with respect to the tearing direction of the longitudinal portion to be torn.
A toner holder selected from the group consisting of toner container and toner cartridge, said holder being provided with a sealing member with a sealing film for closing an opening of the toner holder, said sealing film having a substantially longitudinal portion to be torn out between a first end and a second end, said longitudinal portion extending between the first line and the second line and being adapted to be torn along a tearing direction between a first end and a second end, wherein said sealing film comprises a sealing layer with a thickness comprised between 20 μm and 1 mm and with at least one referred substantially linear tearing direction, whereby said sealing layer is connected to a pulling means, said pulling means comprising at least a layer comprising fibres extending in a direction forming an angle comprised between −60° and +60° with respect to the tearing direction of the longitudinal portion to be torn, in which the sealing layer has:
- a first longitudinal surface element selected from the group consisting of cuts, grooves, recesses and combinations thereof and extending along the first line, and
- a second longitudinal surface element selected from the group consisting of cuts, grooves, recesses and combinations thereof and extending along the second line,
- whereby said longitudinal surface elements extend in a direction comprised between 5° and 175° with respect to the preferred substantially linear tearing direction.
Dependencies are inferred from the claim text.