Sealing member for toner cartridge
AssigneeCF Technologies
InventorsJan De Kesel, Alexander Van Betsbrugge
Life of this patent
Estimating the term…
Abstract
Sealing film for toner cartridge, wherein said sealing film comprises a layer with a preferred linear tearing direction, said layer being provided with longitudinal surface elements defining there between the strip to be torn out, whereby said longitudinal surface elements extend in an inclined direction with respect to the linear tearing direction, in which the strip to be torn out is associated to a pulling means having a sufficient tearing resistance for preventing a separation between the pulling means and the strip to be torn out during a tearing operation.
Claims52
Sealing film for toner cartridge, said 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 to being adapted to be torn 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 and with at least one preferred substantially linear tearing direction, said layer being provided with at least:
- 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 of at least 5° with respect to the preferred substantially linear tearing direction,
- in which the substantially longitudinal portion to be torn out is associated to a pulling means having a portion intended to extend at least partly over one face of the film before the tearing of said portion,
- whereby at least the portion of the pulling means adjacent to the first end of the portion to be torn out has a sufficient tearing resistance for preventing a separation between the pulling means and the substantially longitudinal portion to be torn out during at least the tearing of the first end of the substantially longitudinal portion of the film to be torn out.
Sealing film for toner cartridge, said 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 to being adapted to be torn 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 and with at least one preferred substantially linear tearing direction, said layer being provided with at least:
- 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 of at least 5° with respect to the preferred substantially linear tearing direction, in which the substantially longitudinal portion to be torn out is associated to a pulling means having a portion intended to be bent so that the pulling means extends at least partly over one face of the film before the tearing of said portion,
- in which at least one connecting means links the substantially longitudinal portion to be torn out with the pulling means,
- whereby said connecting means has a sufficient tearing resistance for preventing a separation between the pulling means and the substantially longitudinal portion to be torn out during at least the tearing of the first end of the substantially longitudinal portion of the film to be torn out.
Sealing film for toner cartridge, said film having a substantially longitudinal portion to be torn out between a first end and a second end with a variable width, said longitudinal portion extending between a first line and a second line and to being adapted to be torn 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 and with at least one preferred substantially linear tearing direction, said layer being provided with a means intended for reducing the width of the portion adjacent to the second end of the longitudinal portion to be torn out during the tearing of said second end.
A toner holder selected from the group consisting of toner container and toner cartridge, said holder being provided 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 a first line and a second line and to being adapted to be torn 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 and with at least one preferred substantially linear tearing direction, said layer being provided with at least:
- 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 of at least 5° with respect to the preferred substantially linear tearing direction,
- in which the substantially longitudinal portion to be torn out is associated to a pulling means having a portion intended to extend at least partly over one face of the film before the tearing of said portion,
- whereby at least the portion of the pulling means adjacent to the first end of the portion to be torn out has a sufficient tearing resistance for preventing a separation between the pulling means and the substantially longitudinal portion to be torn out during at least the tearing of the first end of the substantially longitudinal portion of the film to be torn out.
A toner holder selected from the group consisting of toner container and toner cartridge, said holder being provided 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 a first line and a second line and to being adapted to be torn 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 and with at least one preferred substantially linear tearing direction, said layer being provided with at least:
- with 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 of at least 5° with respect to the preferred substantially linear tearing direction,
- in which the substantially longitudinal portion to be torn out is associated to a pulling means having a portion intended to be bent so that the pulling means extends at least partly over one face of the film before the tearing of said portion,
- in which at least one connecting means links the substantially longitudinal portion to be torn out with the pulling means, whereby said connecting means has a sufficient tearing resistance for preventing a separation between the pulling means and the substantially longitudinal portion to be torn out during at least the tearing of the first end of the substantially longitudinal portion of the film to be torn out.
A toner holder selected from the group consisting of toner container and toner cartridge, said holder being provided 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 with a variable width, said longitudinal portion extending between a first line and a second line and to being adapted to be torn 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 and with at least one preferred substantially linear tearing direction, said layer being provided with a means intended for reducing the width of the portion adjacent to the second end of the longitudinal portion to be torn out during the tearing of said second end.
A sealing member for a toner cartridge comprising a sealing film provided with at least two surface elements selected among the group consisting of grooves, recesses, series of distant recesses, series of distant grooves, and mixtures thereof, so as to define between said two surface elements a strip to be torn out, in which at least one surface element is made at least partly by an ultrasonic treatment.
Method for forming surface elements selected among the group consisting of grooves, recesses, series of distant recesses, series of distant grooves, and mixtures thereof on a sealing film of a sealing member of a toner cartridge, said surface elements defining there between a strip to be torn out, in which said surface elements are made at least partly by an ultrasonic treatment.
Dependencies are inferred from the claim text.